The aim of this work was to study little active and sedentary women through physical assessments using anthropometric measurements and exercise testing using the Naughton and Bruce protocols. Approximately 53 women we...The aim of this work was to study little active and sedentary women through physical assessments using anthropometric measurements and exercise testing using the Naughton and Bruce protocols. Approximately 53 women were evaluated: Group 1—comprised of 17 completely sedentary women, aged 25-58 years, mean age 44.4 years, and Group 2—comprised of 36 women who answered doing physical activities once or twice a week (low active), aged 28-54 years, mean age 39.5 years. The results Group 1— high weight, body mass index showing overweight, heart rate above the target areas of your training, i.e., above 85% effort. Systolic blood pressure reached a high level in the seventh stage with 21 minutes of effort (177.3) and diastolic (92.7). Group 2—normal weight, body mass index recorded is considered thin, heart rate heart zones above the target of your training, i.e., above 85% effort also. Systolic blood pressure reached the highest level in phase 1 recovery (156.75). Diastolic blood pressure recorded pressure levels considered normal for the type of work done by the group. The values reported for the double product are considered normal for the type of effort made by both groups. Conclusion: The participants from group 1 are able to join physical activity programs from the results presented, specifically due to weight, BMI, heart rate and blood pressure. The participants from group 2 require more days of practice of physical activities and longer hours to improve the levels of heart rate and blood pressure.展开更多
Purpose: To test the effectiveness of sitting surfaces with varied amounts of stability on muscle activity and energy expenditure.Methods: Using a within-participants repeated measures design, 11 healthy young-adult f...Purpose: To test the effectiveness of sitting surfaces with varied amounts of stability on muscle activity and energy expenditure.Methods: Using a within-participants repeated measures design, 11 healthy young-adult females(age = 20.0 ± 1.8 years) were measured using indirect calorimetry to assess energy expenditure, and electromyography to assess muscular activation in trunk and leg musculature under 3different sitting surfaces: flat-firm surface, air-filled cushion, and a stability ball. Data were analyzed using repeated measures analysis of variance with follow-up pairwise contrasts used to determine the specific effects of sitting surface on muscle activation and energy expenditure.Results: Significantly greater energy expenditure was recorded for the stability ball(p = 0.01) and the cushion(p = 0.03) over the flat surface(10.4% and 9.6% greater, respectively), with no differences between the ball and the cushion. Both the ball and the cushion produced higher tibialis anterior activation over the flat surface(1.09 and 0.63 root-mean-square millivolts(RMSmv), respectively), while the stability ball produced higher soleus activity over both cushion and flat surfaces(3.97 and 4.24 RMSmv, respectively). Additionally, the cushion elicited higher adductor longus activity over the ball and flat surfaces(1.76 and 1.81 RMSmv, respectively), but no trunk musculature differences were revealed.Conclusion: Compliant surfaces resulted in higher levels of muscular activation in the lower extremities facilitating increased caloric expenditure.Given the increasing trends in sedentary careers and the increases in obesity, this is an important finding to validate the merits of active sitting facilitating increased caloric expenditure and muscle activation.展开更多
Objective:Sedentary lifestyle is a major risk factor for physical and mental problems,such as cardiovascular,musculoskeletal diseases,and psychological stress.About 60% of the world’s population is not sufficiently p...Objective:Sedentary lifestyle is a major risk factor for physical and mental problems,such as cardiovascular,musculoskeletal diseases,and psychological stress.About 60% of the world’s population is not sufficiently physically active in leisure time or during work and social activities.This study aimed to determine the prevalence of inactive Jordanian adults and describe their demo-graphic and behavioral characteristics.Methods:The study used data from the behavioral risk factors surveillance survey conducted in Jordan in 2007.The sample size was 3654.Respondents who were physically inactive for more than 240 min daily(sleep time not included)were considered to have a sedentary lifestyle.Data were analyzed with the program SPSS.Results:The prevalence of a sedentary lifestyle was 82.8%(2965 respondents),with a mean sedentary time of 587 min(95%confidence interval 581-594 min).Among the physically inactive adults,52.6% were men,one third of them aged 35-44 years.Sedentary lifestyle was reported by 30% of those with a secondary level of education or above.Of those with a sedentary lifestyle,37.6% were housewives and 37.5% were employees;66% of them were overweight and obese.Of the physically inactive people,2.5%had a history of heart failure and 1.3%had a history of cer-ebrovascular accidents;57.2% of them tried to engage more in physical activity and almost three quarters of them were interested in improving their dietary habits.Conclusion:Most Jordanian adults have a sedentary lifestyle,which emphasizes that there is a public health problem.Many of them are attempting to lead a healthier lifestyle.Therefore,there is an urgent need to launch an applicable national plan that enables people to practice a healthier lifestyle.展开更多
Mobility applications are rapidly growing in cities worldwide due to their convenience and low cost.Mobility applications drivers experience vast flexibility in work hours,often work longer than in fixed-hours jobs,an...Mobility applications are rapidly growing in cities worldwide due to their convenience and low cost.Mobility applications drivers experience vast flexibility in work hours,often work longer than in fixed-hours jobs,and can constantly transport passengers in their vehicles for up to 12 h;after this,they must go offline for eight consecutive hours before driving again.Nonetheless,drivers have found an easy way around this limitation by switching to other apps and continuing driving.This burden of prolonged work can increase sedentary behavior among mobility applications drivers.Sedentary behavior is any waking activity in which the individual expends 1.5 metabolic equivalents(METs)or less while sitting or reclining.This behavior can increase the risk of detrimental effects on health.In this opinion article,we aim to discuss the possible effects of the burden of prolonged work on the sedentary behavior of mobility applications drivers and propose possible strategies to face this concerning situation.展开更多
文摘The aim of this work was to study little active and sedentary women through physical assessments using anthropometric measurements and exercise testing using the Naughton and Bruce protocols. Approximately 53 women were evaluated: Group 1—comprised of 17 completely sedentary women, aged 25-58 years, mean age 44.4 years, and Group 2—comprised of 36 women who answered doing physical activities once or twice a week (low active), aged 28-54 years, mean age 39.5 years. The results Group 1— high weight, body mass index showing overweight, heart rate above the target areas of your training, i.e., above 85% effort. Systolic blood pressure reached a high level in the seventh stage with 21 minutes of effort (177.3) and diastolic (92.7). Group 2—normal weight, body mass index recorded is considered thin, heart rate heart zones above the target of your training, i.e., above 85% effort also. Systolic blood pressure reached the highest level in phase 1 recovery (156.75). Diastolic blood pressure recorded pressure levels considered normal for the type of work done by the group. The values reported for the double product are considered normal for the type of effort made by both groups. Conclusion: The participants from group 1 are able to join physical activity programs from the results presented, specifically due to weight, BMI, heart rate and blood pressure. The participants from group 2 require more days of practice of physical activities and longer hours to improve the levels of heart rate and blood pressure.
文摘Purpose: To test the effectiveness of sitting surfaces with varied amounts of stability on muscle activity and energy expenditure.Methods: Using a within-participants repeated measures design, 11 healthy young-adult females(age = 20.0 ± 1.8 years) were measured using indirect calorimetry to assess energy expenditure, and electromyography to assess muscular activation in trunk and leg musculature under 3different sitting surfaces: flat-firm surface, air-filled cushion, and a stability ball. Data were analyzed using repeated measures analysis of variance with follow-up pairwise contrasts used to determine the specific effects of sitting surface on muscle activation and energy expenditure.Results: Significantly greater energy expenditure was recorded for the stability ball(p = 0.01) and the cushion(p = 0.03) over the flat surface(10.4% and 9.6% greater, respectively), with no differences between the ball and the cushion. Both the ball and the cushion produced higher tibialis anterior activation over the flat surface(1.09 and 0.63 root-mean-square millivolts(RMSmv), respectively), while the stability ball produced higher soleus activity over both cushion and flat surfaces(3.97 and 4.24 RMSmv, respectively). Additionally, the cushion elicited higher adductor longus activity over the ball and flat surfaces(1.76 and 1.81 RMSmv, respectively), but no trunk musculature differences were revealed.Conclusion: Compliant surfaces resulted in higher levels of muscular activation in the lower extremities facilitating increased caloric expenditure.Given the increasing trends in sedentary careers and the increases in obesity, this is an important finding to validate the merits of active sitting facilitating increased caloric expenditure and muscle activation.
文摘Objective:Sedentary lifestyle is a major risk factor for physical and mental problems,such as cardiovascular,musculoskeletal diseases,and psychological stress.About 60% of the world’s population is not sufficiently physically active in leisure time or during work and social activities.This study aimed to determine the prevalence of inactive Jordanian adults and describe their demo-graphic and behavioral characteristics.Methods:The study used data from the behavioral risk factors surveillance survey conducted in Jordan in 2007.The sample size was 3654.Respondents who were physically inactive for more than 240 min daily(sleep time not included)were considered to have a sedentary lifestyle.Data were analyzed with the program SPSS.Results:The prevalence of a sedentary lifestyle was 82.8%(2965 respondents),with a mean sedentary time of 587 min(95%confidence interval 581-594 min).Among the physically inactive adults,52.6% were men,one third of them aged 35-44 years.Sedentary lifestyle was reported by 30% of those with a secondary level of education or above.Of those with a sedentary lifestyle,37.6% were housewives and 37.5% were employees;66% of them were overweight and obese.Of the physically inactive people,2.5%had a history of heart failure and 1.3%had a history of cer-ebrovascular accidents;57.2% of them tried to engage more in physical activity and almost three quarters of them were interested in improving their dietary habits.Conclusion:Most Jordanian adults have a sedentary lifestyle,which emphasizes that there is a public health problem.Many of them are attempting to lead a healthier lifestyle.Therefore,there is an urgent need to launch an applicable national plan that enables people to practice a healthier lifestyle.
基金CABL and MSA are productivity fellowship at the Conselho Nacional de Desenvolvimento Científicoe Tecnológico(CNPq,Brazil).R.L.V.is a productivity fellowship at the Espírito Santo Research and Innovation Support Foundation(FAPES)agency(Edital Fapes Nº06/2021 Bolsa Pesquisador CapixabaNº327/2022-P:2022-F4D7H).VNO is scientific initiation fellowship at the CNPq.TGC is fellowship at the CAPES.
文摘Mobility applications are rapidly growing in cities worldwide due to their convenience and low cost.Mobility applications drivers experience vast flexibility in work hours,often work longer than in fixed-hours jobs,and can constantly transport passengers in their vehicles for up to 12 h;after this,they must go offline for eight consecutive hours before driving again.Nonetheless,drivers have found an easy way around this limitation by switching to other apps and continuing driving.This burden of prolonged work can increase sedentary behavior among mobility applications drivers.Sedentary behavior is any waking activity in which the individual expends 1.5 metabolic equivalents(METs)or less while sitting or reclining.This behavior can increase the risk of detrimental effects on health.In this opinion article,we aim to discuss the possible effects of the burden of prolonged work on the sedentary behavior of mobility applications drivers and propose possible strategies to face this concerning situation.