Evidence⁃based practices of public health will benefit from quantification of passive physical activity assessment.This study aims to investigate the reliability of marker⁃free system(MFS)such as Microsoft Kinect in m...Evidence⁃based practices of public health will benefit from quantification of passive physical activity assessment.This study aims to investigate the reliability of marker⁃free system(MFS)such as Microsoft Kinect in measuring upper extremity motion from different angles.Ten healthy participants performed elbow and shoulder extension/flexion along frontal and median anatomical planes for ten pace⁃controlled repetitions,during which the spatiotemporal positions of upper extremity joints were concurrently recorded by two sensors from 0°and 45°viewing angles.Reliability between the two sensors were evaluated using Pearson correlation coefficient,intra⁃class correlation coefficients,and 95%limits of agreement and coefficient of variation.Worse reliability was observed when possibility of occlusion was higher.However,better reliability was found when longer observation interval(10 s)was used as elementary measuring unit than shorter observation interval(2 s).The overall angular reliability of activity as displacement or changes in angle was not satisfactory.The results are expected to inform the industry for the extension of MFS to clinic applications.展开更多
This study provides explorative insights into the information and communication technology (ICT) for promoting the physical activity level. ICT has provided innovative ideas and perspectives for PA measurement, asse...This study provides explorative insights into the information and communication technology (ICT) for promoting the physical activity level. ICT has provided innovative ideas and perspectives for PA measurement, assessment, evaluation and health intervention. ICT that aims to increase exercise for the entire population should be of a well-oriented and easy-to-use design with the options of tailored and personalized feedback, coaching, and ranking and supporting; it should be capable of setting goals and working with a schedule and be accompanied by a website to provide overviews of the users' exercise results and progress.展开更多
Introduction: Despite a growing body of research indicating that dog walking contributes to meeting physical activity (PA) guidelines, this literature is limited by the use of self-report measures of dog walking and o...Introduction: Despite a growing body of research indicating that dog walking contributes to meeting physical activity (PA) guidelines, this literature is limited by the use of self-report measures of dog walking and overall PA. The objectives of this pilot study were to objectively assess dog walking with accelerometry, characterize the frequency, duration, and intensity of dog walking, and determine the contribution of dog walking to overall moderate-vigorous physical activity (MVPA). Methods: Sixty-five dog owners wore an Actigraph GT3X accelerometer for up to 7 consecutive days and recorded start/end times for dog walks with daily log sheets. Each minute with an activity count ≥ 760 was classified as MVPA. Descriptive statistics were used to summarize all variables. Logistic regression was used to examine associations between dog walking MVPA bouts and meeting PA guidelines, controlling for age, education, income, and gender. Results: Participants walked their dog an average of 1.2 ± 1.1 times/day, averaged 28.0 ± 15.6 minutes/walk, and accumulated 22.9 ± 17.5 minutes of MVPA/day during dog walks, of which 21.7 ± 17.9 minutes were accumulated in bouts ≥10 minutes. Seventy-eight percent of dog walking was classified as moderate-intensity and 3.5% was vigorous. Dog walking MVPA had a statistically significant positive association with meeting PA guidelines (OR = 2.32;95% CI = 1.06, 5.08). Conclusions: The majority of dog walking minutes were moderate-intensity and most minutes of MVPA during dog walking occurred in bouts. These findings suggest that dog walking is consistent with current PA guidelines for adults and should receive more consideration as a PA promotion strategy.展开更多
In a rural area near Munich, 52 persons aged 65 years and older were interviewed in person about health and social life circumstances. Findings: Dog owners take significantly longer walks than people who do not own do...In a rural area near Munich, 52 persons aged 65 years and older were interviewed in person about health and social life circumstances. Findings: Dog owners take significantly longer walks than people who do not own dogs, averaging more than 120 minutes daily (p < 0.0001). On average, people who do not own a dog walked 38 minutes, cat owners 17 minutes. 94% of the dog owners were active daily compared to 14% of those who do not own a dog. Dog owners go to the doctor on average 5.3 times per year, people who do not own a dog 7.8 times. There was no difference between the two groups in regard to the use of medication. 80% would not move to a residential home for the elderly because of the dog, and 87% would want to take the dog along. 50% of the dog owners and 41% of those who do not own a dog had on average more than 3 contacts with other people, 6% of the dog owners and 23% of those who do not own a dog had less than one contact per day. 19% of the dog owners and 36% of those who do not own a dog would describe themselves as reserved in dealings with people. 71% stated that the dog had been very useful to help them overcome the loss of a person close to them. The W-5 [Wellbeing Five score] for dog owners was an average value of 75%, for those who did not own a dog 71%. Depression was uniformly distributed in both groups. The BMIs in both groups were similar. There was no correlation to the length of the daily walk.展开更多
Physical activity improves glycemic control and reduces the risk of cardiovascular disease(CVD) and mortality in patients with type 2 diabetes(T2D). Moderate to vigorous physical activity is recommended to manage T2D;...Physical activity improves glycemic control and reduces the risk of cardiovascular disease(CVD) and mortality in patients with type 2 diabetes(T2D). Moderate to vigorous physical activity is recommended to manage T2D; however, patients with T2D can be physically weak, making it difficult to engage in the recommended levels of physical activity. Daily physical activity includes various activities performed during both occupational and leisure time such as walking, gardening, and housework that type 2 diabetic patients should be able to perform without considerable physical burden. This review focuses on the association between daily physical activity and T2D. Walking was the most common form of daily physical activity, with numerous studies demonstrating its beneficial effects on reducing the risk of T2D, CVD, and mortality. Walking for at least 30 min per day was shown to reduce the risk of T2D by approximately 50%. Additionally, walking was associated with a reduction in mortality. In contrast, evidence was extremely limited regarding other daily physical activities such as gardening and housework in patients with T2D. Recent studies have suggested daily physical activity, including non-exercise activity thermogenesis, to be favorably associated with metabolic risks and mortality. However, well-designed longitudinal studies are warranted to elucidate its effects on overall health.展开更多
Objective To evaluate the community-based health promotion effect of physical activity. Methods The residents aged 28 and above from two communities in Gongshu District of Hangzhou City, Zhejiang province, were random...Objective To evaluate the community-based health promotion effect of physical activity. Methods The residents aged 28 and above from two communities in Gongshu District of Hangzhou City, Zhejiang province, were randomly selected and recruited for the multi-strategy and comprehensive physical activity intervention. Questionnaire survey, physical check up and blood biochemistry were conducted. Results After this two-year intervention, the time of the participant spent on weekly physical activity of moderate intensity increased from 464 min to 542 min (P〈0.05), with an average increase of 78 min. Time spent in walking every week increased from 533 min to 678 min (P〈0.05), with an average increase of 245 min. The body weight, waistline, blood pressure and heart rate all reduced significantly (P〈0.05); the vital capacity increased significantly (P〈0.05); and the related biochemical indicators were also improved. Conclusion Comprehensive and evidence-based physical activity interventions targeting community population can improve the levels of physical activity, related body measurement and biochemical indicators.展开更多
Objectives:Adolescents using active transport(AT)to school have higher levels of physical activity(PA)compared with motorized transport(MT)users.This study compared school day and weekend day PA in adolescents using A...Objectives:Adolescents using active transport(AT)to school have higher levels of physical activity(PA)compared with motorized transport(MT)users.This study compared school day and weekend day PA in adolescents using AT,MT,or combined AT and MT(AT + MT)to travel to school.Methods:Adolescents(n= 314;age:14.7±1.4 years;32.8% boys)from Dunedin(New Zealand)wore an accelerometer for 7 days and completed a self-reported survey regarding mode of transport to school(73 AT,56 AT + MT,and 185 MT).Data were analyzed using t tests,analysis of variance,and χ2 tests.Results:Although the proportion of adolescents meeting PA guidelines significantly differed among transport groups(AT,47.9%;AT + MT,46.4%;MT,33.5%;p=0.048;overall,39.2%),the observed differences were due mainly to girls.Compared with MT,AT and AT+MT engaged in more moderate-to-vigorous PA(MVPA)per day(AT:61.2 ± 23.2 min;AT+MT:59.6 ± 21.7 min;MT:52.5 ± 19.6 min;p = 0.004;p<0.001,adjusted for gender),per school day and before school.Immediately after school(15:00-16:00),AT engaged in significantly more MVPA compared with AT + MT and MT.No differences in MVPA between the groups were observed in the late afternoon/early evening period during school days or on weekend days.Conclusion:Compared with MT users,adolescent girls using AT or AT + MT accumulated more MVPA during school commute time.AT + MT to school is also a plausible way to increase adolescent girls’ PA when AT only is not feasible.展开更多
Although many obese patients do not engage in adequate physical activity (PA), little is known about whether physicians discuss environmental barriers in promoting PA. We conducted this study to describe physicians’ ...Although many obese patients do not engage in adequate physical activity (PA), little is known about whether physicians discuss environmental barriers in promoting PA. We conducted this study to describe physicians’ views about discussing environmental barriers in promoting PA with obese patients and determine whether counseling varies by years of practice. We conducted an online survey of family physicians practicing in 17 clinics in Central Texas. We performed descriptive analysis on barriers to PA, counseling on meeting PA recommendation, and written prescription for exercise and bivariate analysis by years of practice. Statistical significance was set at p < 0.05. Of 96 physicians invited, 57 (59.4%) completed the survey. Majority reported their obese patients brought up the environment as a barrier to walking (89.3%) or PA (91.2%). Majority (80.7%) also reported asking about environmental barriers to walking, with 84.2% giving specific examples to overcome these barriers. While 96.5% reported advising their obese patients about meeting the PA recommendation, only 26.3% reported giving them a written prescription for exercise. These did not vary significantly by years of practice. Physicians felt having more time with their patients and knowing specific strategies to overcome environmental barriers, safe places in patients’ neighborhoods, and what environmental factors influence PA may help discuss environmental issues with their obese patients. Physicians want and counsel their obese patients to be physically active, but do not generally give prescriptions for exercise irrespective of years of practice. They also want tools to enhance their abilities to better assist these patients.展开更多
In this study, an effective noncontact and nonattached technique that is based on electrostatic induction current generated during walking motion is proposed for the detection and assessment of human physical activity...In this study, an effective noncontact and nonattached technique that is based on electrostatic induction current generated during walking motion is proposed for the detection and assessment of human physical activity. In addition, a theoretical model is proposed for the electrostatic induction current generated owing to variation in the electric potential of the human body. The proposed electrostatic induction current model is compared with the theoretical model, and the proposed model is shown to effectively explain the behavior of the electrostatic induction current waveform. The normal walking motions of daily living are recorded with a portable sensor located in a regular house. The obtained results show that detailed information of physical activity such as a gait cycle can be estimated using our proposed technique. Additionally, the walking signal was measured when the subject walked with the ankle and knee fastened to a splint with bandages to simulate a limp. Therefore, the proposed technique, which is based on the detection of signal generated during walking, can be successfully employed to assess human physical activity.展开更多
Developing a healthy lifestyle during adulthood is one of the essential factors to prepare for healthy aging. This cross-sectional descriptive study investigated the daily walking steps of 893 working adults from nine...Developing a healthy lifestyle during adulthood is one of the essential factors to prepare for healthy aging. This cross-sectional descriptive study investigated the daily walking steps of 893 working adults from nine occupation categories in Hong Kong. Their daily walking steps were measured using a pedometer. Analysis of variance (ANOVA) was used to compare the difference in daily walking steps between participants in different occupation category. Chi-square test was used to compare the difference in proportion of working adults in each occupation category who walked and did not walk 10,000 steps per day. Results reveal that the participants in average walked 8661 steps per day. “Plant and machine operators and assemblers” and “clerks” were the two least active groups. Participants from the nine occupation categories demonstrated a significant difference in the number of daily walking steps. Post hoc analysis revealed a significant difference between “plant and machine operators and assemblers” and “service workers and shop sales workers” (p < 0.01), as well as between “plant and machine operators and assemblers” and “craft and related workers” (p < 0.01). Participants from the nine occupation categories also demonstrated a significant difference in the proportion of those who walked and did not walk 10,000 steps per day. Owing to a large difference in number of participants in the nine occupation categories and other study limitations, further systematic investigation is indicated to confirm the study results. To summarize, working adults in Hong Kong are only somewhat active. Identifying the factors that deter the working adults from walking and the ways to promote walking among working adults is necessary to prepare a healthy older population of the future.展开更多
Aim: The aim of this study is to examine the effect of walking 10,000 steps per day on depressive symptoms for the company employees and their spouses in Japan. Method: Subjects were recruited from the participants of...Aim: The aim of this study is to examine the effect of walking 10,000 steps per day on depressive symptoms for the company employees and their spouses in Japan. Method: Subjects were recruited from the participants of a walking campaign carried out by a Japanese company where the goal was to achieve 600,000 steps in 60 days. Among 221 subjects who participated in the campaign, 176 subjects (79.6%) agreed to participate in the present study. Sociodemographics and other information including depressive symptoms were assessed using a questionnaire. Result: Out of the 171 participants, 125 achieved the goal (73.1%). In the achiever’s group, the GHQ-12 score was significantly reduced at the end of the campaign compared with the non-achiever’s group. Exercise habit and the less overtime work (展开更多
Walking to/from school(WTS)is an important form of habitual and healthful physical activity(PA).This cross-sectional study examined the multilevel correlates of WTS among elementary school children in Austin,Texas,and...Walking to/from school(WTS)is an important form of habitual and healthful physical activity(PA).This cross-sectional study examined the multilevel correlates of WTS among elementary school children in Austin,Texas,and whether WTS and neighborhood environmental factors were associated with increased independent mobility and PA.A parent survey was conducted,and geographic information systems were used to calculate the shortest home-to-school distance.Binary logistic regressions were used to predict the outcomes.Distance,physical barriers(e.g.,highway/freeway/busy roads),neighborhood environmental quality,and traffic concerns were significant predictors for WTS.Having a school within the neighborhood and unsupervised play increased the likelihood of independent travel to non-school destinations.Sidewalk availability and condition,having a friend’s/relative’s house in the neighborhood that the child visits frequently,and independent travel to non-school destinations predicted an increased likelihood of unsupervised outdoor play.Stranger danger reduced the likelihood of both independent travel and unsupervised play.Easy access to services and unsupervised play increased the likelihood of meeting PA guidelines.This study identified modifiable environmental predictors of WTS,independent mobility,and meeting PA guidelines.Future PA promotion should consider strategies that can encourage not only WTS but also independent travel to non-school destinations and unsupervised outdoor play.展开更多
BACKGROUND Reaching the Selecting Therapeutic Targets in Inflammatory Bowel Disease-II(STRIDE-II)therapeutic targets for inflammatory bowel disease(IBD)requires an interdisciplinary approach.Lifestyle interventions fo...BACKGROUND Reaching the Selecting Therapeutic Targets in Inflammatory Bowel Disease-II(STRIDE-II)therapeutic targets for inflammatory bowel disease(IBD)requires an interdisciplinary approach.Lifestyle interventions focusing on enhancing and preserving health-related physical fitness(HRPF)may aid in improving subjective health,decreasing disability,or even controlling inflammation.However,ambiguity remains about the status and impact of HRPF(i.e.body composition,cardiorespiratory fitness,muscular strength,muscular endurance,and flexibility)in IBD patients,hindering the development of physical activity and physical exercise training guidelines.AIM To review HRPF components in IBD patients and the impact of physical activity and physical exercise training interventions on HRPF.METHODS A systematic search in multiple databases was conducted for original studies that included patients with IBD,assessed one or more HRPF components,and/or evaluated physical activity or physical exercise training interventions.RESULTS Sixty-eight articles were included.No study examined the complete concept of HRPF,and considerable heterogeneity existed in assessment methods,with frequent use of non-validated tests.According to studies that used gold standard tests,cardiorespiratory fitness seemed to be reduced,but findings on muscular strength and endurance were inconsistent.A limited number of studies that evaluated physical activity or physical exercise training interventions reported effects on HRPF,overall showing a positive impact.CONCLUSION We performed a scoping review using a systematic and iterative approach to identify and synthesize an emerging body of literature on health-related physical fitness in patients with IBD,highlighting several research gaps and opportunities for future research.Findings of this review revealed a gap in the literature regarding the accurate assessment of HRPF in patients with IBD and highlighted important methodological limitations of studies that evaluated physical activity or physical exercise training interventions.This scoping review is a step towards performing studies and systematic reviews in the future,which was not possible at present given the heterogeneity in endpoints and designs of the available studies on this topic.Future well-designed studies are required to determine the optimal training paradigm for improving HRPF in patients with IBD before guidelines can be developed and integrated into the therapeutic strategy.展开更多
This paper presents a multi-sensor ensemble classifier (MSEC) for physical activity (PA) pattern recognition of human subjects. The MSEC, developed for a wearable multi-sensor integrate measurement system (IMS),combin...This paper presents a multi-sensor ensemble classifier (MSEC) for physical activity (PA) pattern recognition of human subjects. The MSEC, developed for a wearable multi-sensor integrate measurement system (IMS),combines multiple classifiers based on different sensor feature sets to improve the accuracy of PA type identification.Experimental evaluation of 56 subjects has shown that the MSECis more effectivein assessing activities of varying intensitiesthan the traditional homogeneous classifiers. It is able to correctly recognize 6 PA types with an accuracy of 93.50%, which is 7% higher than the non-ensemble support vector machine method. Furthermore, the MSECis effective in reducing the subject-to-subject variabilityin activity recognition.展开更多
基金Sponsored by the National Natural Science Foundation of China(Grant No.51708152)the Science and Technology Innovation Committee of Shenzhen Municipality(Grant No.JCYJ20170811155435737).
文摘Evidence⁃based practices of public health will benefit from quantification of passive physical activity assessment.This study aims to investigate the reliability of marker⁃free system(MFS)such as Microsoft Kinect in measuring upper extremity motion from different angles.Ten healthy participants performed elbow and shoulder extension/flexion along frontal and median anatomical planes for ten pace⁃controlled repetitions,during which the spatiotemporal positions of upper extremity joints were concurrently recorded by two sensors from 0°and 45°viewing angles.Reliability between the two sensors were evaluated using Pearson correlation coefficient,intra⁃class correlation coefficients,and 95%limits of agreement and coefficient of variation.Worse reliability was observed when possibility of occlusion was higher.However,better reliability was found when longer observation interval(10 s)was used as elementary measuring unit than shorter observation interval(2 s).The overall angular reliability of activity as displacement or changes in angle was not satisfactory.The results are expected to inform the industry for the extension of MFS to clinic applications.
文摘This study provides explorative insights into the information and communication technology (ICT) for promoting the physical activity level. ICT has provided innovative ideas and perspectives for PA measurement, assessment, evaluation and health intervention. ICT that aims to increase exercise for the entire population should be of a well-oriented and easy-to-use design with the options of tailored and personalized feedback, coaching, and ranking and supporting; it should be capable of setting goals and working with a schedule and be accompanied by a website to provide overviews of the users' exercise results and progress.
文摘Introduction: Despite a growing body of research indicating that dog walking contributes to meeting physical activity (PA) guidelines, this literature is limited by the use of self-report measures of dog walking and overall PA. The objectives of this pilot study were to objectively assess dog walking with accelerometry, characterize the frequency, duration, and intensity of dog walking, and determine the contribution of dog walking to overall moderate-vigorous physical activity (MVPA). Methods: Sixty-five dog owners wore an Actigraph GT3X accelerometer for up to 7 consecutive days and recorded start/end times for dog walks with daily log sheets. Each minute with an activity count ≥ 760 was classified as MVPA. Descriptive statistics were used to summarize all variables. Logistic regression was used to examine associations between dog walking MVPA bouts and meeting PA guidelines, controlling for age, education, income, and gender. Results: Participants walked their dog an average of 1.2 ± 1.1 times/day, averaged 28.0 ± 15.6 minutes/walk, and accumulated 22.9 ± 17.5 minutes of MVPA/day during dog walks, of which 21.7 ± 17.9 minutes were accumulated in bouts ≥10 minutes. Seventy-eight percent of dog walking was classified as moderate-intensity and 3.5% was vigorous. Dog walking MVPA had a statistically significant positive association with meeting PA guidelines (OR = 2.32;95% CI = 1.06, 5.08). Conclusions: The majority of dog walking minutes were moderate-intensity and most minutes of MVPA during dog walking occurred in bouts. These findings suggest that dog walking is consistent with current PA guidelines for adults and should receive more consideration as a PA promotion strategy.
文摘In a rural area near Munich, 52 persons aged 65 years and older were interviewed in person about health and social life circumstances. Findings: Dog owners take significantly longer walks than people who do not own dogs, averaging more than 120 minutes daily (p < 0.0001). On average, people who do not own a dog walked 38 minutes, cat owners 17 minutes. 94% of the dog owners were active daily compared to 14% of those who do not own a dog. Dog owners go to the doctor on average 5.3 times per year, people who do not own a dog 7.8 times. There was no difference between the two groups in regard to the use of medication. 80% would not move to a residential home for the elderly because of the dog, and 87% would want to take the dog along. 50% of the dog owners and 41% of those who do not own a dog had on average more than 3 contacts with other people, 6% of the dog owners and 23% of those who do not own a dog had less than one contact per day. 19% of the dog owners and 36% of those who do not own a dog would describe themselves as reserved in dealings with people. 71% stated that the dog had been very useful to help them overcome the loss of a person close to them. The W-5 [Wellbeing Five score] for dog owners was an average value of 75%, for those who did not own a dog 71%. Depression was uniformly distributed in both groups. The BMIs in both groups were similar. There was no correlation to the length of the daily walk.
文摘Physical activity improves glycemic control and reduces the risk of cardiovascular disease(CVD) and mortality in patients with type 2 diabetes(T2D). Moderate to vigorous physical activity is recommended to manage T2D; however, patients with T2D can be physically weak, making it difficult to engage in the recommended levels of physical activity. Daily physical activity includes various activities performed during both occupational and leisure time such as walking, gardening, and housework that type 2 diabetic patients should be able to perform without considerable physical burden. This review focuses on the association between daily physical activity and T2D. Walking was the most common form of daily physical activity, with numerous studies demonstrating its beneficial effects on reducing the risk of T2D, CVD, and mortality. Walking for at least 30 min per day was shown to reduce the risk of T2D by approximately 50%. Additionally, walking was associated with a reduction in mortality. In contrast, evidence was extremely limited regarding other daily physical activities such as gardening and housework in patients with T2D. Recent studies have suggested daily physical activity, including non-exercise activity thermogenesis, to be favorably associated with metabolic risks and mortality. However, well-designed longitudinal studies are warranted to elucidate its effects on overall health.
文摘Objective To evaluate the community-based health promotion effect of physical activity. Methods The residents aged 28 and above from two communities in Gongshu District of Hangzhou City, Zhejiang province, were randomly selected and recruited for the multi-strategy and comprehensive physical activity intervention. Questionnaire survey, physical check up and blood biochemistry were conducted. Results After this two-year intervention, the time of the participant spent on weekly physical activity of moderate intensity increased from 464 min to 542 min (P〈0.05), with an average increase of 78 min. Time spent in walking every week increased from 533 min to 678 min (P〈0.05), with an average increase of 245 min. The body weight, waistline, blood pressure and heart rate all reduced significantly (P〈0.05); the vital capacity increased significantly (P〈0.05); and the related biochemical indicators were also improved. Conclusion Comprehensive and evidence-based physical activity interventions targeting community population can improve the levels of physical activity, related body measurement and biochemical indicators.
基金supported by the Health Research Council of New Zealand Emerging Researcher First Grant (14/565)National Heart Foundation of New Zealand(1602 and 1615)+2 种基金Lottery Health Research Grant (Applic 341129)University of Otago Research Grant (UORG 2014)Dunedin City Council and internal grants from the School of Physical Education,Sport and Exercise Sciences,University of Otago
文摘Objectives:Adolescents using active transport(AT)to school have higher levels of physical activity(PA)compared with motorized transport(MT)users.This study compared school day and weekend day PA in adolescents using AT,MT,or combined AT and MT(AT + MT)to travel to school.Methods:Adolescents(n= 314;age:14.7±1.4 years;32.8% boys)from Dunedin(New Zealand)wore an accelerometer for 7 days and completed a self-reported survey regarding mode of transport to school(73 AT,56 AT + MT,and 185 MT).Data were analyzed using t tests,analysis of variance,and χ2 tests.Results:Although the proportion of adolescents meeting PA guidelines significantly differed among transport groups(AT,47.9%;AT + MT,46.4%;MT,33.5%;p=0.048;overall,39.2%),the observed differences were due mainly to girls.Compared with MT,AT and AT+MT engaged in more moderate-to-vigorous PA(MVPA)per day(AT:61.2 ± 23.2 min;AT+MT:59.6 ± 21.7 min;MT:52.5 ± 19.6 min;p = 0.004;p<0.001,adjusted for gender),per school day and before school.Immediately after school(15:00-16:00),AT engaged in significantly more MVPA compared with AT + MT and MT.No differences in MVPA between the groups were observed in the late afternoon/early evening period during school days or on weekend days.Conclusion:Compared with MT users,adolescent girls using AT or AT + MT accumulated more MVPA during school commute time.AT + MT to school is also a plausible way to increase adolescent girls’ PA when AT only is not feasible.
文摘Although many obese patients do not engage in adequate physical activity (PA), little is known about whether physicians discuss environmental barriers in promoting PA. We conducted this study to describe physicians’ views about discussing environmental barriers in promoting PA with obese patients and determine whether counseling varies by years of practice. We conducted an online survey of family physicians practicing in 17 clinics in Central Texas. We performed descriptive analysis on barriers to PA, counseling on meeting PA recommendation, and written prescription for exercise and bivariate analysis by years of practice. Statistical significance was set at p < 0.05. Of 96 physicians invited, 57 (59.4%) completed the survey. Majority reported their obese patients brought up the environment as a barrier to walking (89.3%) or PA (91.2%). Majority (80.7%) also reported asking about environmental barriers to walking, with 84.2% giving specific examples to overcome these barriers. While 96.5% reported advising their obese patients about meeting the PA recommendation, only 26.3% reported giving them a written prescription for exercise. These did not vary significantly by years of practice. Physicians felt having more time with their patients and knowing specific strategies to overcome environmental barriers, safe places in patients’ neighborhoods, and what environmental factors influence PA may help discuss environmental issues with their obese patients. Physicians want and counsel their obese patients to be physically active, but do not generally give prescriptions for exercise irrespective of years of practice. They also want tools to enhance their abilities to better assist these patients.
文摘In this study, an effective noncontact and nonattached technique that is based on electrostatic induction current generated during walking motion is proposed for the detection and assessment of human physical activity. In addition, a theoretical model is proposed for the electrostatic induction current generated owing to variation in the electric potential of the human body. The proposed electrostatic induction current model is compared with the theoretical model, and the proposed model is shown to effectively explain the behavior of the electrostatic induction current waveform. The normal walking motions of daily living are recorded with a portable sensor located in a regular house. The obtained results show that detailed information of physical activity such as a gait cycle can be estimated using our proposed technique. Additionally, the walking signal was measured when the subject walked with the ankle and knee fastened to a splint with bandages to simulate a limp. Therefore, the proposed technique, which is based on the detection of signal generated during walking, can be successfully employed to assess human physical activity.
文摘Developing a healthy lifestyle during adulthood is one of the essential factors to prepare for healthy aging. This cross-sectional descriptive study investigated the daily walking steps of 893 working adults from nine occupation categories in Hong Kong. Their daily walking steps were measured using a pedometer. Analysis of variance (ANOVA) was used to compare the difference in daily walking steps between participants in different occupation category. Chi-square test was used to compare the difference in proportion of working adults in each occupation category who walked and did not walk 10,000 steps per day. Results reveal that the participants in average walked 8661 steps per day. “Plant and machine operators and assemblers” and “clerks” were the two least active groups. Participants from the nine occupation categories demonstrated a significant difference in the number of daily walking steps. Post hoc analysis revealed a significant difference between “plant and machine operators and assemblers” and “service workers and shop sales workers” (p < 0.01), as well as between “plant and machine operators and assemblers” and “craft and related workers” (p < 0.01). Participants from the nine occupation categories also demonstrated a significant difference in the proportion of those who walked and did not walk 10,000 steps per day. Owing to a large difference in number of participants in the nine occupation categories and other study limitations, further systematic investigation is indicated to confirm the study results. To summarize, working adults in Hong Kong are only somewhat active. Identifying the factors that deter the working adults from walking and the ways to promote walking among working adults is necessary to prepare a healthy older population of the future.
文摘Aim: The aim of this study is to examine the effect of walking 10,000 steps per day on depressive symptoms for the company employees and their spouses in Japan. Method: Subjects were recruited from the participants of a walking campaign carried out by a Japanese company where the goal was to achieve 600,000 steps in 60 days. Among 221 subjects who participated in the campaign, 176 subjects (79.6%) agreed to participate in the present study. Sociodemographics and other information including depressive symptoms were assessed using a questionnaire. Result: Out of the 171 participants, 125 achieved the goal (73.1%). In the achiever’s group, the GHQ-12 score was significantly reduced at the end of the campaign compared with the non-achiever’s group. Exercise habit and the less overtime work (
基金the City of Austin’s Safe Routes to School Program。
文摘Walking to/from school(WTS)is an important form of habitual and healthful physical activity(PA).This cross-sectional study examined the multilevel correlates of WTS among elementary school children in Austin,Texas,and whether WTS and neighborhood environmental factors were associated with increased independent mobility and PA.A parent survey was conducted,and geographic information systems were used to calculate the shortest home-to-school distance.Binary logistic regressions were used to predict the outcomes.Distance,physical barriers(e.g.,highway/freeway/busy roads),neighborhood environmental quality,and traffic concerns were significant predictors for WTS.Having a school within the neighborhood and unsupervised play increased the likelihood of independent travel to non-school destinations.Sidewalk availability and condition,having a friend’s/relative’s house in the neighborhood that the child visits frequently,and independent travel to non-school destinations predicted an increased likelihood of unsupervised outdoor play.Stranger danger reduced the likelihood of both independent travel and unsupervised play.Easy access to services and unsupervised play increased the likelihood of meeting PA guidelines.This study identified modifiable environmental predictors of WTS,independent mobility,and meeting PA guidelines.Future PA promotion should consider strategies that can encourage not only WTS but also independent travel to non-school destinations and unsupervised outdoor play.
文摘BACKGROUND Reaching the Selecting Therapeutic Targets in Inflammatory Bowel Disease-II(STRIDE-II)therapeutic targets for inflammatory bowel disease(IBD)requires an interdisciplinary approach.Lifestyle interventions focusing on enhancing and preserving health-related physical fitness(HRPF)may aid in improving subjective health,decreasing disability,or even controlling inflammation.However,ambiguity remains about the status and impact of HRPF(i.e.body composition,cardiorespiratory fitness,muscular strength,muscular endurance,and flexibility)in IBD patients,hindering the development of physical activity and physical exercise training guidelines.AIM To review HRPF components in IBD patients and the impact of physical activity and physical exercise training interventions on HRPF.METHODS A systematic search in multiple databases was conducted for original studies that included patients with IBD,assessed one or more HRPF components,and/or evaluated physical activity or physical exercise training interventions.RESULTS Sixty-eight articles were included.No study examined the complete concept of HRPF,and considerable heterogeneity existed in assessment methods,with frequent use of non-validated tests.According to studies that used gold standard tests,cardiorespiratory fitness seemed to be reduced,but findings on muscular strength and endurance were inconsistent.A limited number of studies that evaluated physical activity or physical exercise training interventions reported effects on HRPF,overall showing a positive impact.CONCLUSION We performed a scoping review using a systematic and iterative approach to identify and synthesize an emerging body of literature on health-related physical fitness in patients with IBD,highlighting several research gaps and opportunities for future research.Findings of this review revealed a gap in the literature regarding the accurate assessment of HRPF in patients with IBD and highlighted important methodological limitations of studies that evaluated physical activity or physical exercise training interventions.This scoping review is a step towards performing studies and systematic reviews in the future,which was not possible at present given the heterogeneity in endpoints and designs of the available studies on this topic.Future well-designed studies are required to determine the optimal training paradigm for improving HRPF in patients with IBD before guidelines can be developed and integrated into the therapeutic strategy.
文摘This paper presents a multi-sensor ensemble classifier (MSEC) for physical activity (PA) pattern recognition of human subjects. The MSEC, developed for a wearable multi-sensor integrate measurement system (IMS),combines multiple classifiers based on different sensor feature sets to improve the accuracy of PA type identification.Experimental evaluation of 56 subjects has shown that the MSECis more effectivein assessing activities of varying intensitiesthan the traditional homogeneous classifiers. It is able to correctly recognize 6 PA types with an accuracy of 93.50%, which is 7% higher than the non-ensemble support vector machine method. Furthermore, the MSECis effective in reducing the subject-to-subject variabilityin activity recognition.