A growing understanding of the benefits of exercise over the past few decades has prompted researchers to take an interest in the possibilities of exercise therapy.Because each sport has its own set of characteristics...A growing understanding of the benefits of exercise over the past few decades has prompted researchers to take an interest in the possibilities of exercise therapy.Because each sport has its own set of characteristics and physiological complications that tend to occur during exercise training,the effects and underlying mechanisms of exercise remain unclear.Thus,the first step in probing the effects of exercise on different diseases is the selection of an optimal exercise protocol.This review summarizes the latest exercise prescription treatments for 26 different diseases:musculoskeletal system diseases(low back pain,tendon injury,osteoporosis,osteoarthritis,and hip fracture),metabolic system diseases(obesity,type 2 diabetes,type 1 diabetes,and nonalcoholic fatty liver disease),cardio-cerebral vascular system diseases(coronary artery disease,stroke,and chronic heart failure),nervous system diseases(Parkinson’s disease,Huntington’s disease,Alzheimer’s disease,depression,and anxiety disorders),respiratory system diseases(chronic obstructive pulmonary disease,interstitial lung disease,and after lung transplantation),urinary system diseases(chronic kidney disease and after kidney transplantation),and cancers(breast cancer,colon cancer,prostate cancer,and lung cancer).Each exercise prescription is displayed in a corresponding table.The recommended type,intensity,and frequency of exercise prescriptions are summarized,and the effects of exercise therapy on the prevention and rehabilitation of different diseases are discussed.展开更多
Obesity is one of the greatest public health challenges of the 21st century. Overweight and obesity drastically increase a person’s risk of developing chronic non-communicable diseases (NCDs), including cardiovascula...Obesity is one of the greatest public health challenges of the 21st century. Overweight and obesity drastically increase a person’s risk of developing chronic non-communicable diseases (NCDs), including cardiovascular disease, cancer and diabetes. Furthermore, obesity is already responsible for 2% -8% of health costs and 10% -13% of deaths in several industrialized countries. Lifestyle modifications involving changes in exercise, diet and psychological support are effective in reducing the incidence of overweight. Moreover, positive effects of physical activity (PA) for weight loss and prevention of weight regain are well documented. It was recognized that health benefits regarding both psychological and physiological aspects, such as improving cardiorespiratory and muscular fitness and/or decreasing depression symptoms, can be obtained from numerous activities. Public health institutions (American College of Sports Medicine, World Health Organization) provide recommendations for PA (volume, frequency, intensity and type of exercise) to achieve positive effects, at all ages and for many diseases and disorders situations. Although exercise under guidelines can be safely performed by obese subjects, several questions still need to be fully answered. In facts, the exercise program should be tailored according to an individual’s habitual physical activity, physical function, health status, exercise responses, and stated goals. Thus, this review analyzes the intensity of PA parameters. In the last years, research has been focused on the individualization of the right intensity in which different types of subjects’ condition must undergo to achieve the health goals. Aerobic exercise has been commonly used to reach weight loss goal. Prescription of aerobic exercise in clinical practice is frequently based on the percentage of maximum heart rate (%HRmax), heart rate reserve (%HRreserve), rating of perceived exertion (RPE), maximal oxygen consumption (%VO2max) and for unhealthy subjects, peak oxygen consumption (%VO2peak). It has been shown that unhealthy subjects, such as individuals affected by diabetes, obesity and cardiovascular diseases have a reduced maximal aerobic exercise capacity. For instance, using the formula based on percentage of HRmax or VO2max, it could be prescribed heavy exercises, which would result not appropriated and fully functional for the specific individual goal. To avoid this problem, another approach to individualize aerobic exercise could be to consider the gas exchange parameters such us aerobic gas exchange threshold (AerTGE). AerTGE corresponds to the first increase in blood lactate during incremental exercise. This review offers an overview of the different methods to assess exercise intensity, considering the different subjects health characteristics, in order to choose the right methods to achieve the health goals in obese and overweight subjects.展开更多
The Aerobic Threshold (AerT), is an aged cardiovascular parameter not commonly used to evaluate the heart’s performance in athletes. It indirectly evaluated by ventilator parameters during Cardio Pulmonary Test (CPT)...The Aerobic Threshold (AerT), is an aged cardiovascular parameter not commonly used to evaluate the heart’s performance in athletes. It indirectly evaluated by ventilator parameters during Cardio Pulmonary Test (CPT). Considering that” exercise as prescription therapy “for the diseases, includes training normally established around at the 40% of the peak VO2, this parameter could be taken in care as initial level for the effort prescribed. The aim of the study was to estimate the behavior of the AerT and also Anaerobic Threshold (AT), VO2max in sedentary people. A group of athletes coming from different sports at the same and highest dynamic component were enrolled as control. A group of 41 athletes (16 soccer, 10 basket and 15 cyclists) and 9 healthy subjects were submitted to a CPT. The AerT, AT (assessed by Vslope method) and VO2max were evaluated. The statistical analysis was performed with T student test (P < 0.05 significant). As expected in sedentary all the values were lower than athletes, however for Aer T value appears to be not significantly inferior respect of this one, with the exclusion of the comparison with the cyclists. In sedentary the AerT measure seems to give additional information in evaluating the cardiovascular performance. The VO2max and AT remain the main parameters in defining the athletes performance. Therefore we cannot exclude any further utility of the AerT in normal subject but regularly trained.展开更多
Purpose: The purpose of this study was to establish the relationship between various expressions of relative exercise intensity percentage of maximal oxygen uptake(%VO_(2max)), percentage of maximal heart rate(%HR_(ma...Purpose: The purpose of this study was to establish the relationship between various expressions of relative exercise intensity percentage of maximal oxygen uptake(%VO_(2max)), percentage of maximal heart rate(%HR_(max)), %VO_2 reserve(%VO_2R), and %HR reserve(%HRR)) in order to obtain the more appropriate method for exercise intensity prescription when using an immersible ergocycle(IE) and to propose a prediction equation to estimate oxygen consumption(VO_2) based on IE pedaling rate(rpm) for an individualized exercise training prescription.Methods: Thirty-three healthy participants performed incremental exercise tests on IE and dryland ergocycle(DE) at equal external power output(Pext). Exercise on IE began at 40 rpm and was increased by 10 rpm until exhaustion. Exercise on DE began with an initial load of 25 W and increased by 25 W/min until exhaustion. VO_2 was measured with a portable gas analyzer(COSMED K4b^2) during both incremental tests. On IE and DE, %VO_2R, %HRmax, and %HRR at equal Pext did not differ(p > 0.05).Results: The %HRR vs. %VO_2R regression for both IE and DE did not differ from the identity line %VO_2R IE = 0.99 × HRR IE(%) + 0.01(r^2= 0.91, SEE = 11%); %VO_2R DE = 0.94 × HRR DE(%) + 0.01(r^2= 0.94, SEE = 8%). Similar mean values for %HRmax, %VO_2R, and %HRR at equal Pext were observed on IE and DE. Predicted VO_2 obtained according to rpm on IE is represented by: VO_2(L/min) = 0.000542 × rpm2-0.026 × rpm + 0.739(r = 0.91, SEE = 0.319 L/min).Conclusion: The %HRR–%VO_2R relationship appears to be the most accurate for exercise training prescription on IE. This study offers new tools to better prescribe, control, and individualize exercise intensity on IE.展开更多
On the basis of “Healthy China 2030” Blueprint, this paper conducts an in-depth analysis of the current situation of insufficient physical activities on the background of China’s social development, explores the ro...On the basis of “Healthy China 2030” Blueprint, this paper conducts an in-depth analysis of the current situation of insufficient physical activities on the background of China’s social development, explores the role of exercise prescription in improving the performance of the national’s functional quality during national fitness and physical medicine integration, provides reasonable exercise advice and programs for different populations, and analyzes and summarizes the development trend and direction of exercise prescriptions.展开更多
Aging is associated with physiological declines, notably a decrease in bone mineral density (BMD) and lean body mass, with a concurrent increase in body fat and central adiposity. Interest in women and aging is of p...Aging is associated with physiological declines, notably a decrease in bone mineral density (BMD) and lean body mass, with a concurrent increase in body fat and central adiposity. Interest in women and aging is of particular interest partly as a result of gender specific responses to aging, particularly as a result of menopause. It is possible that the onset of menopause may augment the physiological decline associated with aging and inactivity. More so, a higher incidence of metabolic syndrome (an accumulation of cardiovascular disease risk factors including obesity, low-density lipoprotein cholesterol, high blood pressure, and high fasting glucose) has been shown in middle-aged women during the postmenopausal period. This is due in part to the drastic changes in body composition, as previously discussed, but also a change in physical activity (PA) levels. Sarcopenia is an age related decrease in the cross-sectional area of skeletal muscle fibers that consequently leads to a decline in physical function, gait speed, balance, coordination, decreased BMD, and quality of life. PA plays an essential role in combating physiological decline associated with aging. Maintenance of adequate levels of PA can result in increased longevity and a reduced risk for metabolic disease along with other chronic diseases. The aim of this paper is to review relevant literature, examine current PA guidelines, and provide recom- mendations specific to women based on current research.展开更多
Purpose: The present study aimed to investigate the reliability of the non-exhaustive double effort(NEDE) test in running exercise and its associations with the ventilatory thresholds(VT_1 and VT_2) and the maximal la...Purpose: The present study aimed to investigate the reliability of the non-exhaustive double effort(NEDE) test in running exercise and its associations with the ventilatory thresholds(VT_1 and VT_2) and the maximal lactate steady state(MLSS).Methods: Ten healthy male adults(age: 23 ± 4 years, height: 176.6 ± 6.4 cm, body mass: 76.6 ± 10.7 kg) performed 4 procedures:(1) a ramp test for VT_1 and VT_2 determinations measured by ratio of expired ventilation to O_2 uptake(VE/VO_2) and expired ventilation to CO_2 output(VE/VCO_2) equivalents, respectively;(2) the NEDE test measured by blood lactate concentration(NEDE_(LAC)) and heart rate responses(NEDE_(HR));(3) a retest of NEDE for reliability analysis; and(4) continuous efforts to determine the MLSS intensity. The NEDE test consisted of4 sessions at different running intensities. Each session was characterized by double efforts at the same running velocity(E1 and E2, 180 s), separated by a passive recovery period(90 s rest). LAC and HR values after E1 and E2(in 4 sessions) were used to estimate the intensity equivalent to"null delta" by linear fit. This parameter represents, theoretically, the intensity equivalent to maximal aerobic capacity.Results: The intraclass correlation coefficient indicated significant reliability for NEDE_(LAC)(0.93) and NEDE_(HR)(0.79)(both p < 0.05). There were significant correlations, no differences, and strong agreement with the intensities predicted by NEDE_(LAC)(10.1 ± 1.9 km/h) and NEDE_(HR)(9.8 ± 2.0 km/h) to VT_1(10.2 ± 1.1 km/h). In addition, despite significantly lower MLSS intensity(12.2 ± 1.2 km/h), NEDE_(LAC) and NEDE_(HR) intensities were highly correlated with this parameter(0.90 and 0.88, respectively).Conclusion: The NEDE test applied to running exercise is reliable and estimates the VT_1 intensity. Additionally, NEDE intensities were lower but still correlated with VT_2 and MLSS.展开更多
We hypothesized that slowed oxygen uptake(VO_(2))kinetics for exercise transitions to higher power outputs(PO)within the steady state(SS)domain would increase the mean response time(MRT)with increasing exercise intens...We hypothesized that slowed oxygen uptake(VO_(2))kinetics for exercise transitions to higher power outputs(PO)within the steady state(SS)domain would increase the mean response time(MRT)with increasing exercise intensity during incremental exercise.Fourteen highly trained cyclists(mean±standard deviation[SD]);age(39±6)years[yr];and VO_(2) peak=(61±9)mL/kg/min performed a maximal,ramp incremental cycling test and on separate days,four 6-min bouts of cycling at 30%,45%,65%&75% of their incremental peak PO(Wpeak).SS trial data were used to calculate the MRT and verified by mono-exponential and linear curve fitting.When the ramp protocol attained the value from SS,the PO,in Watts(W),was converted to time(min)based on the ramp function W to quantify the incremental MRT(iMRT).Slope analyses for the VO_(2) responses of the SS versus incremental exercise data below the gas exchange threshold(GET)revealed a significant difference(p=0.003;[0.437±0.08]vs.[0.382±0.05]L·min^(-1)).There was a significant difference between the 45%Wpeak steady state VO_(2)(ss VO_(2))([3.08±0.30]L·min^(-1),respectively),and 30% Wpeak ss VO_(2)(2.26±0.24)(p<0.0001;[3.61±0.80]vs.[2.20±0.39]L·min^(-1))and between the iMRT for 45% and 30% Wpeak ss VO_(2) values([50.58±36.85]s vs.[32.20±43.28]s).These data indicate there is no single iMRT,which is consistent with slowed VO_(2) kinetics and an increasing VO_(2) deficit for higher exercise intensities within the SS domain.展开更多
Knee Osteoarthritis(KOA)is the most common type of knee joint injury and also a risk factor for multiple health consequences and is prevalent among older women.The updated clinical guidelines for KOA treatment by the ...Knee Osteoarthritis(KOA)is the most common type of knee joint injury and also a risk factor for multiple health consequences and is prevalent among older women.The updated clinical guidelines for KOA treatment by the American Rheumatism Association recommend Tai Chi exercise.However,a literature review outlined limitations in Tai Chi intervention implementations.This study aimed to address some of the gaps.This study selected thirty female patients to participate in Tai Chi exercises and undergo relevant tests.The subjects were randomly assigned to Tai Chi or education groups.Independent sample t-tests were conducted to compare the difference in health indicators between the two groups after the intervention.The difference-in-differences(DID)regression was performed to assess the difference in the health outcomes between the two groups at baseline and follow-up and the difference in the differences.After the completion of the intervention,the Tai Chi group reported significantly improved KOA symptoms,physical fitness,and health status indicators than the control group.Specifically,the group differences were significantly larger at the baseline than at the follow-up.Our findings provide compelling evidence of the effects of the innovative Tai Chi exercise prescription specifically designed for KOA patients.The empirical evidence on its effectiveness in alleviating KOA symptoms and improving the overall health of middle-aged and elderly women with KOA suggested that Tai Chi intervention exercise has huge prospects for integration in KOA rehabilitation therapy.展开更多
In recent years,the Westernization of dietary habits and increasingly sedentary lifestyle have contributed to a marked increase in the number of type 2 diabetes patients.Sedentary behavior may play a significant role ...In recent years,the Westernization of dietary habits and increasingly sedentary lifestyle have contributed to a marked increase in the number of type 2 diabetes patients.Sedentary behavior may play a significant role in the development and aggravation of type 2 diabetes.The results of various follow-up studies have demonstrated that proper diet combined with physical exer-cise is useful in the prevention and treatment of type 2 diabetes.A nationwide survey regarding exercise therapy for diabetes patients in Japan revealed that relatively few physicians provide patients with exercise guidance because of time constraints,that the physicians do not receive additional consultation fee,and that there is a lack of specialized physical exercise educa-tors.Physical exercise promotes the utilization of glucose and free fatty acids in the muscles,and thus lowers blood glucose(BG)levels.Dietary restriction and physical exercise are effective in the prevention and treatment of type 2 diabetes by improving the in vivo sensitivity to insulin.Most adults with diabetes should engage in 150 min or more of moderate-to-vigorous intensity aerobic activity per week,spread out over at least 3 days/week,with no more than two consecutive days without activity.Mild-intensity resistance training such as half squat and calf raise is recommended for elderly individuals who have decreased muscle strength and mass(sarcopenia).Prolonged sitting should be interrupted every 30 min for BG benefits,particularly in adults with type 2 diabetes.Individuals with type 2 diabetes are also encouraged to increase their total daily unstructured physical activity(daily movement).展开更多
目的:基于预康复理念构建肺癌化疗病人的运动方案,以缓解病人癌性相关症状,改善病人呼吸功能,提高生存质量。方法:系统检索the Cochrane Library、PubMed、Web of Science、中国知网、中国生物医学文献数据库中有关预康复理念指导下,运...目的:基于预康复理念构建肺癌化疗病人的运动方案,以缓解病人癌性相关症状,改善病人呼吸功能,提高生存质量。方法:系统检索the Cochrane Library、PubMed、Web of Science、中国知网、中国生物医学文献数据库中有关预康复理念指导下,运动措施运用于肺癌病人的相关文献,检索时间为建库至2023年4月1日,对筛选后的文献进行质量评价并提炼内容,制定肺癌病人预康复理念下运动康复方案的初稿。于2023年4月—5月采用德尔菲法对24名专家进行两轮专家函询,修订并最终确定肺癌化疗病人预康复理念下运动方案。结果:两轮专家函询的问卷回收率分别为91.67%(22/24)和100.00%(22/22),专家权威系数为0.81,最终形成的肺癌病人运动康复方案包括筛查与评估、运动方案模式、辅助管理、运动效果评价4个一级指标、11个二级指标及40个三级指标。结论:基于循证和德尔菲法构建的运动康复方案具有一定的科学性和实用性,可用于指导肺癌化疗病人预康复理念下的运动管理。展开更多
基金supported by Natural Science Foundation of China (No. 31671242)the National Key R&D Program of China (No. 2018YFC1314701)
文摘A growing understanding of the benefits of exercise over the past few decades has prompted researchers to take an interest in the possibilities of exercise therapy.Because each sport has its own set of characteristics and physiological complications that tend to occur during exercise training,the effects and underlying mechanisms of exercise remain unclear.Thus,the first step in probing the effects of exercise on different diseases is the selection of an optimal exercise protocol.This review summarizes the latest exercise prescription treatments for 26 different diseases:musculoskeletal system diseases(low back pain,tendon injury,osteoporosis,osteoarthritis,and hip fracture),metabolic system diseases(obesity,type 2 diabetes,type 1 diabetes,and nonalcoholic fatty liver disease),cardio-cerebral vascular system diseases(coronary artery disease,stroke,and chronic heart failure),nervous system diseases(Parkinson’s disease,Huntington’s disease,Alzheimer’s disease,depression,and anxiety disorders),respiratory system diseases(chronic obstructive pulmonary disease,interstitial lung disease,and after lung transplantation),urinary system diseases(chronic kidney disease and after kidney transplantation),and cancers(breast cancer,colon cancer,prostate cancer,and lung cancer).Each exercise prescription is displayed in a corresponding table.The recommended type,intensity,and frequency of exercise prescriptions are summarized,and the effects of exercise therapy on the prevention and rehabilitation of different diseases are discussed.
文摘Obesity is one of the greatest public health challenges of the 21st century. Overweight and obesity drastically increase a person’s risk of developing chronic non-communicable diseases (NCDs), including cardiovascular disease, cancer and diabetes. Furthermore, obesity is already responsible for 2% -8% of health costs and 10% -13% of deaths in several industrialized countries. Lifestyle modifications involving changes in exercise, diet and psychological support are effective in reducing the incidence of overweight. Moreover, positive effects of physical activity (PA) for weight loss and prevention of weight regain are well documented. It was recognized that health benefits regarding both psychological and physiological aspects, such as improving cardiorespiratory and muscular fitness and/or decreasing depression symptoms, can be obtained from numerous activities. Public health institutions (American College of Sports Medicine, World Health Organization) provide recommendations for PA (volume, frequency, intensity and type of exercise) to achieve positive effects, at all ages and for many diseases and disorders situations. Although exercise under guidelines can be safely performed by obese subjects, several questions still need to be fully answered. In facts, the exercise program should be tailored according to an individual’s habitual physical activity, physical function, health status, exercise responses, and stated goals. Thus, this review analyzes the intensity of PA parameters. In the last years, research has been focused on the individualization of the right intensity in which different types of subjects’ condition must undergo to achieve the health goals. Aerobic exercise has been commonly used to reach weight loss goal. Prescription of aerobic exercise in clinical practice is frequently based on the percentage of maximum heart rate (%HRmax), heart rate reserve (%HRreserve), rating of perceived exertion (RPE), maximal oxygen consumption (%VO2max) and for unhealthy subjects, peak oxygen consumption (%VO2peak). It has been shown that unhealthy subjects, such as individuals affected by diabetes, obesity and cardiovascular diseases have a reduced maximal aerobic exercise capacity. For instance, using the formula based on percentage of HRmax or VO2max, it could be prescribed heavy exercises, which would result not appropriated and fully functional for the specific individual goal. To avoid this problem, another approach to individualize aerobic exercise could be to consider the gas exchange parameters such us aerobic gas exchange threshold (AerTGE). AerTGE corresponds to the first increase in blood lactate during incremental exercise. This review offers an overview of the different methods to assess exercise intensity, considering the different subjects health characteristics, in order to choose the right methods to achieve the health goals in obese and overweight subjects.
文摘The Aerobic Threshold (AerT), is an aged cardiovascular parameter not commonly used to evaluate the heart’s performance in athletes. It indirectly evaluated by ventilator parameters during Cardio Pulmonary Test (CPT). Considering that” exercise as prescription therapy “for the diseases, includes training normally established around at the 40% of the peak VO2, this parameter could be taken in care as initial level for the effort prescribed. The aim of the study was to estimate the behavior of the AerT and also Anaerobic Threshold (AT), VO2max in sedentary people. A group of athletes coming from different sports at the same and highest dynamic component were enrolled as control. A group of 41 athletes (16 soccer, 10 basket and 15 cyclists) and 9 healthy subjects were submitted to a CPT. The AerT, AT (assessed by Vslope method) and VO2max were evaluated. The statistical analysis was performed with T student test (P < 0.05 significant). As expected in sedentary all the values were lower than athletes, however for Aer T value appears to be not significantly inferior respect of this one, with the exclusion of the comparison with the cyclists. In sedentary the AerT measure seems to give additional information in evaluating the cardiovascular performance. The VO2max and AT remain the main parameters in defining the athletes performance. Therefore we cannot exclude any further utility of the AerT in normal subject but regularly trained.
基金provided by the éPIC Foundation and the Montreal Heart Institute Foundation
文摘Purpose: The purpose of this study was to establish the relationship between various expressions of relative exercise intensity percentage of maximal oxygen uptake(%VO_(2max)), percentage of maximal heart rate(%HR_(max)), %VO_2 reserve(%VO_2R), and %HR reserve(%HRR)) in order to obtain the more appropriate method for exercise intensity prescription when using an immersible ergocycle(IE) and to propose a prediction equation to estimate oxygen consumption(VO_2) based on IE pedaling rate(rpm) for an individualized exercise training prescription.Methods: Thirty-three healthy participants performed incremental exercise tests on IE and dryland ergocycle(DE) at equal external power output(Pext). Exercise on IE began at 40 rpm and was increased by 10 rpm until exhaustion. Exercise on DE began with an initial load of 25 W and increased by 25 W/min until exhaustion. VO_2 was measured with a portable gas analyzer(COSMED K4b^2) during both incremental tests. On IE and DE, %VO_2R, %HRmax, and %HRR at equal Pext did not differ(p > 0.05).Results: The %HRR vs. %VO_2R regression for both IE and DE did not differ from the identity line %VO_2R IE = 0.99 × HRR IE(%) + 0.01(r^2= 0.91, SEE = 11%); %VO_2R DE = 0.94 × HRR DE(%) + 0.01(r^2= 0.94, SEE = 8%). Similar mean values for %HRmax, %VO_2R, and %HRR at equal Pext were observed on IE and DE. Predicted VO_2 obtained according to rpm on IE is represented by: VO_2(L/min) = 0.000542 × rpm2-0.026 × rpm + 0.739(r = 0.91, SEE = 0.319 L/min).Conclusion: The %HRR–%VO_2R relationship appears to be the most accurate for exercise training prescription on IE. This study offers new tools to better prescribe, control, and individualize exercise intensity on IE.
文摘On the basis of “Healthy China 2030” Blueprint, this paper conducts an in-depth analysis of the current situation of insufficient physical activities on the background of China’s social development, explores the role of exercise prescription in improving the performance of the national’s functional quality during national fitness and physical medicine integration, provides reasonable exercise advice and programs for different populations, and analyzes and summarizes the development trend and direction of exercise prescriptions.
文摘Aging is associated with physiological declines, notably a decrease in bone mineral density (BMD) and lean body mass, with a concurrent increase in body fat and central adiposity. Interest in women and aging is of particular interest partly as a result of gender specific responses to aging, particularly as a result of menopause. It is possible that the onset of menopause may augment the physiological decline associated with aging and inactivity. More so, a higher incidence of metabolic syndrome (an accumulation of cardiovascular disease risk factors including obesity, low-density lipoprotein cholesterol, high blood pressure, and high fasting glucose) has been shown in middle-aged women during the postmenopausal period. This is due in part to the drastic changes in body composition, as previously discussed, but also a change in physical activity (PA) levels. Sarcopenia is an age related decrease in the cross-sectional area of skeletal muscle fibers that consequently leads to a decline in physical function, gait speed, balance, coordination, decreased BMD, and quality of life. PA plays an essential role in combating physiological decline associated with aging. Maintenance of adequate levels of PA can result in increased longevity and a reduced risk for metabolic disease along with other chronic diseases. The aim of this paper is to review relevant literature, examine current PA guidelines, and provide recom- mendations specific to women based on current research.
基金financially supported by the Fundacao de AmparoàPesquisa do Estado de Sao Paulo(FAPESP,protocol 2009/08535-5)
文摘Purpose: The present study aimed to investigate the reliability of the non-exhaustive double effort(NEDE) test in running exercise and its associations with the ventilatory thresholds(VT_1 and VT_2) and the maximal lactate steady state(MLSS).Methods: Ten healthy male adults(age: 23 ± 4 years, height: 176.6 ± 6.4 cm, body mass: 76.6 ± 10.7 kg) performed 4 procedures:(1) a ramp test for VT_1 and VT_2 determinations measured by ratio of expired ventilation to O_2 uptake(VE/VO_2) and expired ventilation to CO_2 output(VE/VCO_2) equivalents, respectively;(2) the NEDE test measured by blood lactate concentration(NEDE_(LAC)) and heart rate responses(NEDE_(HR));(3) a retest of NEDE for reliability analysis; and(4) continuous efforts to determine the MLSS intensity. The NEDE test consisted of4 sessions at different running intensities. Each session was characterized by double efforts at the same running velocity(E1 and E2, 180 s), separated by a passive recovery period(90 s rest). LAC and HR values after E1 and E2(in 4 sessions) were used to estimate the intensity equivalent to"null delta" by linear fit. This parameter represents, theoretically, the intensity equivalent to maximal aerobic capacity.Results: The intraclass correlation coefficient indicated significant reliability for NEDE_(LAC)(0.93) and NEDE_(HR)(0.79)(both p < 0.05). There were significant correlations, no differences, and strong agreement with the intensities predicted by NEDE_(LAC)(10.1 ± 1.9 km/h) and NEDE_(HR)(9.8 ± 2.0 km/h) to VT_1(10.2 ± 1.1 km/h). In addition, despite significantly lower MLSS intensity(12.2 ± 1.2 km/h), NEDE_(LAC) and NEDE_(HR) intensities were highly correlated with this parameter(0.90 and 0.88, respectively).Conclusion: The NEDE test applied to running exercise is reliable and estimates the VT_1 intensity. Additionally, NEDE intensities were lower but still correlated with VT_2 and MLSS.
文摘We hypothesized that slowed oxygen uptake(VO_(2))kinetics for exercise transitions to higher power outputs(PO)within the steady state(SS)domain would increase the mean response time(MRT)with increasing exercise intensity during incremental exercise.Fourteen highly trained cyclists(mean±standard deviation[SD]);age(39±6)years[yr];and VO_(2) peak=(61±9)mL/kg/min performed a maximal,ramp incremental cycling test and on separate days,four 6-min bouts of cycling at 30%,45%,65%&75% of their incremental peak PO(Wpeak).SS trial data were used to calculate the MRT and verified by mono-exponential and linear curve fitting.When the ramp protocol attained the value from SS,the PO,in Watts(W),was converted to time(min)based on the ramp function W to quantify the incremental MRT(iMRT).Slope analyses for the VO_(2) responses of the SS versus incremental exercise data below the gas exchange threshold(GET)revealed a significant difference(p=0.003;[0.437±0.08]vs.[0.382±0.05]L·min^(-1)).There was a significant difference between the 45%Wpeak steady state VO_(2)(ss VO_(2))([3.08±0.30]L·min^(-1),respectively),and 30% Wpeak ss VO_(2)(2.26±0.24)(p<0.0001;[3.61±0.80]vs.[2.20±0.39]L·min^(-1))and between the iMRT for 45% and 30% Wpeak ss VO_(2) values([50.58±36.85]s vs.[32.20±43.28]s).These data indicate there is no single iMRT,which is consistent with slowed VO_(2) kinetics and an increasing VO_(2) deficit for higher exercise intensities within the SS domain.
基金supported by the National Key Research and Development Program of China[2018YFC2000603].
文摘Knee Osteoarthritis(KOA)is the most common type of knee joint injury and also a risk factor for multiple health consequences and is prevalent among older women.The updated clinical guidelines for KOA treatment by the American Rheumatism Association recommend Tai Chi exercise.However,a literature review outlined limitations in Tai Chi intervention implementations.This study aimed to address some of the gaps.This study selected thirty female patients to participate in Tai Chi exercises and undergo relevant tests.The subjects were randomly assigned to Tai Chi or education groups.Independent sample t-tests were conducted to compare the difference in health indicators between the two groups after the intervention.The difference-in-differences(DID)regression was performed to assess the difference in the health outcomes between the two groups at baseline and follow-up and the difference in the differences.After the completion of the intervention,the Tai Chi group reported significantly improved KOA symptoms,physical fitness,and health status indicators than the control group.Specifically,the group differences were significantly larger at the baseline than at the follow-up.Our findings provide compelling evidence of the effects of the innovative Tai Chi exercise prescription specifically designed for KOA patients.The empirical evidence on its effectiveness in alleviating KOA symptoms and improving the overall health of middle-aged and elderly women with KOA suggested that Tai Chi intervention exercise has huge prospects for integration in KOA rehabilitation therapy.
文摘In recent years,the Westernization of dietary habits and increasingly sedentary lifestyle have contributed to a marked increase in the number of type 2 diabetes patients.Sedentary behavior may play a significant role in the development and aggravation of type 2 diabetes.The results of various follow-up studies have demonstrated that proper diet combined with physical exer-cise is useful in the prevention and treatment of type 2 diabetes.A nationwide survey regarding exercise therapy for diabetes patients in Japan revealed that relatively few physicians provide patients with exercise guidance because of time constraints,that the physicians do not receive additional consultation fee,and that there is a lack of specialized physical exercise educa-tors.Physical exercise promotes the utilization of glucose and free fatty acids in the muscles,and thus lowers blood glucose(BG)levels.Dietary restriction and physical exercise are effective in the prevention and treatment of type 2 diabetes by improving the in vivo sensitivity to insulin.Most adults with diabetes should engage in 150 min or more of moderate-to-vigorous intensity aerobic activity per week,spread out over at least 3 days/week,with no more than two consecutive days without activity.Mild-intensity resistance training such as half squat and calf raise is recommended for elderly individuals who have decreased muscle strength and mass(sarcopenia).Prolonged sitting should be interrupted every 30 min for BG benefits,particularly in adults with type 2 diabetes.Individuals with type 2 diabetes are also encouraged to increase their total daily unstructured physical activity(daily movement).
文摘目的:基于预康复理念构建肺癌化疗病人的运动方案,以缓解病人癌性相关症状,改善病人呼吸功能,提高生存质量。方法:系统检索the Cochrane Library、PubMed、Web of Science、中国知网、中国生物医学文献数据库中有关预康复理念指导下,运动措施运用于肺癌病人的相关文献,检索时间为建库至2023年4月1日,对筛选后的文献进行质量评价并提炼内容,制定肺癌病人预康复理念下运动康复方案的初稿。于2023年4月—5月采用德尔菲法对24名专家进行两轮专家函询,修订并最终确定肺癌化疗病人预康复理念下运动方案。结果:两轮专家函询的问卷回收率分别为91.67%(22/24)和100.00%(22/22),专家权威系数为0.81,最终形成的肺癌病人运动康复方案包括筛查与评估、运动方案模式、辅助管理、运动效果评价4个一级指标、11个二级指标及40个三级指标。结论:基于循证和德尔菲法构建的运动康复方案具有一定的科学性和实用性,可用于指导肺癌化疗病人预康复理念下的运动管理。