Background:Evidence on the health benefits of occupational physical activity(OPA)is inconclusive.We examined the associations of baseline OPA and OPA changes with all-cause,cardiovascular disease(CVD),and cancer morta...Background:Evidence on the health benefits of occupational physical activity(OPA)is inconclusive.We examined the associations of baseline OPA and OPA changes with all-cause,cardiovascular disease(CVD),and cancer mortality and survival times.Methods:This study included prospective and longitudinal data from the MJ Cohort,comprising adults over 18 years recruited in 1998-2016,349,248 adults(177,314 women)with baseline OPA,of whom 105,715(52,503 women)had 2 OPA measures at 6.3±4.2 years(mean±SD)apart.Exposures were baseline OPA,OPA changes,and baseline leisure-time physical activity.Results:Over a mean mortality follow-up of 16.2±5.5 years for men and 16.4±5.4 years for women,11,696 deaths(2033 of CVD and 4631 of cancer causes)in men and 8980 deaths(1475 of CVD and 3689 of cancer causes)in women occurred.Combined moderately heavy/heavy baseline OPA was beneficially associated with all-cause mortality in men(multivariable-adjusted hazard ratio(HR)=0.93,95%confidence interval(95%CI):0.89-0.98 compared to light OPA)and women(HR=0.86,95%CI:0.79-0.93).Over a mean mortality follow-up of 12.5±4.6 years for men and 12.6±4.6 years for women,OPA decreases in men were detrimentally associated(HR=1.16,95%CI:1.01-1.33)with all-cause mortality,while OPA increases in women were beneficially(HR=0.83,95%CI:0.70-0.97)associated with the same outcome.Baseline or changes in OPA showed no associations with CVD or cancer mortality.Conclusion:Higher baseline OPA was beneficially associated with all-cause mortality risk in both men and women.Our longitudinal OPA analyses partly confirmed the prospective findings,with some discordance between sex groups.展开更多
Background:This study examined the joint associations of sleep patterns and physical activity(PA) with all-cause,cardiovascular disease(CVD),and cancer mortality.Methods:A total of 341,248 adults(mean age=39.7 years;m...Background:This study examined the joint associations of sleep patterns and physical activity(PA) with all-cause,cardiovascular disease(CVD),and cancer mortality.Methods:A total of 341,248 adults(mean age=39.7 years;men:48.3%) were included in the study,with a 15-year follow-up.Participants reported sleep duration and disturbances(difficulty falling asleep,easily awakened,or use of sleeping medication).PA was classified into 4 levels:<7.5,7.5-14.9,15.0-29.9,and>30.0 metabolic equivalent hours per week(MET-h/week).To understand the joint associations of sleep patterns and PA with mortality,Cox proportional hazard models were conducted,with exposure variables combining sleep duration/disturbances and PA.Results:Compared with the reference group(sleeping 6-8 h/day),individuals who slept>8 h/day had higher risk for all-cause mortality(hazard ratio(HR)=1.307,95% confidence interval(95%CI):1.248-1.369),CVD mortality(HR=1.298,95%CI:1.165-1.445),and cancer mortality(HR=1.128,95%CI:1.042-1.220).Short sleep duration was not associated with mortality risk.Increased risk of all-cause and CVD mortality was found in participants who had difficulty falling asleep(HR=1.120,95%CI:1.068-1.175;HR=1.163,95%CI:1.038-1.304,respectively),and used sleeping medication(HR=1.261,95%CI:1.159-1.372;HR=1.335,95%CI:1.102-1.618,respectively) compared with those who slept well.Long sleep duration and sleep disturbances were not associated with risk of all-cause and CVD mortality among individuals achieving a PA level of>15 MET-h/week,and in particular among those achieving> 30 MET-h/week.Conclusion:Long sleep duration,difficulty falling asleep,and use of sleeping medication were related to a higher risk of death.Being physically active at a moderate intensity for 25-65 min/day eliminated these detrimental associations.展开更多
Background:Little is known about the association between different types of physical activity(PA)and chronic back conditions(CBCs)at the population level.We investigated the association between levels of total and typ...Background:Little is known about the association between different types of physical activity(PA)and chronic back conditions(CBCs)at the population level.We investigated the association between levels of total and type-specific PA participation and CBCs.Methods'.The sample comprised 60,134 adults aged>16 years who participated in the Health Survey for England and Scottish Health Survey from 1994 to 2008.Multiple logistic regression models,adjusted for potential confbunders,were used to examine the association between total and type-specific PA volume(walking,domestic activity,sport/exercise,cycling,football/rugby,running/jogging,manual work,and housework)and the prevalence of CBCs.Results'.We found an inverse association between total PA volume and prevalence of CBCs.Compared with inactive participants,the fully adjusted odds ratio(OR)for very active participants(≥15 metabolic equivalent h/week)was 0.77(95%confidence interval(CI):0.69—0.85).Participants reporting≥300 min/week of moderate-intensity activity and≥75 min/week of vigorous-intensity activity had 24%(95%CI:6%—39%)and 21%(95%C1:11%—30%)lower odds of CBCs,respectively.Higher odds of CBCs were observed for participation in high-level manual domestic activity(OR=1.22;95%CI:1.00-1.48).Sport/exercise was associated with CBCs in a less consistent manner(e.g.,OR=1.18(95%CI:1.06—1.32)for low levels and OR=0.82(95%CI:0.72—0.93)for high levels of sport/exercise).Conclusion'.PA volume is inversely associated with the prevalence of CBCs.展开更多
Dear editor,We read with interest the commentary by Mark Tremblay and colleagues,1 which outlines the new 24-Hour Canadian sedentary behavior guidelines.These guidelines take the perspective of a continuum across the ...Dear editor,We read with interest the commentary by Mark Tremblay and colleagues,1 which outlines the new 24-Hour Canadian sedentary behavior guidelines.These guidelines take the perspective of a continuum across the 24-h day,providing a vehicle for discussing physically active time,sitting and other sedentary time,as well as healthy sleep duration.The commentary 1 focuses on the sedentary behavior(SB)recommendations in these guidelines:(1)limiting sedentary time to8 h per day,(2)limiting recreational screen time to3 h,and(3)breaking up long periods of sitting as often as possible throughout the day.Support for this perspective was evidenced by a survey of a sample(n=126,6% of total)of Sedentary Behavior Research Network(SBRN)members2 indicating broad acceptance of these SB recommendations.1 In this response,we put this survey in context and discuss the evidence base underpinning these 3 Canadian sedentary-behavior recommendations.展开更多
基金supported by a National Health and Medical Research Council (Australia) Investigator Grant (APP1194510)
文摘Background:Evidence on the health benefits of occupational physical activity(OPA)is inconclusive.We examined the associations of baseline OPA and OPA changes with all-cause,cardiovascular disease(CVD),and cancer mortality and survival times.Methods:This study included prospective and longitudinal data from the MJ Cohort,comprising adults over 18 years recruited in 1998-2016,349,248 adults(177,314 women)with baseline OPA,of whom 105,715(52,503 women)had 2 OPA measures at 6.3±4.2 years(mean±SD)apart.Exposures were baseline OPA,OPA changes,and baseline leisure-time physical activity.Results:Over a mean mortality follow-up of 16.2±5.5 years for men and 16.4±5.4 years for women,11,696 deaths(2033 of CVD and 4631 of cancer causes)in men and 8980 deaths(1475 of CVD and 3689 of cancer causes)in women occurred.Combined moderately heavy/heavy baseline OPA was beneficially associated with all-cause mortality in men(multivariable-adjusted hazard ratio(HR)=0.93,95%confidence interval(95%CI):0.89-0.98 compared to light OPA)and women(HR=0.86,95%CI:0.79-0.93).Over a mean mortality follow-up of 12.5±4.6 years for men and 12.6±4.6 years for women,OPA decreases in men were detrimentally associated(HR=1.16,95%CI:1.01-1.33)with all-cause mortality,while OPA increases in women were beneficially(HR=0.83,95%CI:0.70-0.97)associated with the same outcome.Baseline or changes in OPA showed no associations with CVD or cancer mortality.Conclusion:Higher baseline OPA was beneficially associated with all-cause mortality risk in both men and women.Our longitudinal OPA analyses partly confirmed the prospective findings,with some discordance between sex groups.
基金PWK’s work is supported in part by the Ministry of Science and Technology (MOST 108-2410-H-018-028-MY3)funded by the National Health and Medical Research Council(NHMRC) through a Senior Research Fellowship。
文摘Background:This study examined the joint associations of sleep patterns and physical activity(PA) with all-cause,cardiovascular disease(CVD),and cancer mortality.Methods:A total of 341,248 adults(mean age=39.7 years;men:48.3%) were included in the study,with a 15-year follow-up.Participants reported sleep duration and disturbances(difficulty falling asleep,easily awakened,or use of sleeping medication).PA was classified into 4 levels:<7.5,7.5-14.9,15.0-29.9,and>30.0 metabolic equivalent hours per week(MET-h/week).To understand the joint associations of sleep patterns and PA with mortality,Cox proportional hazard models were conducted,with exposure variables combining sleep duration/disturbances and PA.Results:Compared with the reference group(sleeping 6-8 h/day),individuals who slept>8 h/day had higher risk for all-cause mortality(hazard ratio(HR)=1.307,95% confidence interval(95%CI):1.248-1.369),CVD mortality(HR=1.298,95%CI:1.165-1.445),and cancer mortality(HR=1.128,95%CI:1.042-1.220).Short sleep duration was not associated with mortality risk.Increased risk of all-cause and CVD mortality was found in participants who had difficulty falling asleep(HR=1.120,95%CI:1.068-1.175;HR=1.163,95%CI:1.038-1.304,respectively),and used sleeping medication(HR=1.261,95%CI:1.159-1.372;HR=1.335,95%CI:1.102-1.618,respectively) compared with those who slept well.Long sleep duration and sleep disturbances were not associated with risk of all-cause and CVD mortality among individuals achieving a PA level of>15 MET-h/week,and in particular among those achieving> 30 MET-h/week.Conclusion:Long sleep duration,difficulty falling asleep,and use of sleeping medication were related to a higher risk of death.Being physically active at a moderate intensity for 25-65 min/day eliminated these detrimental associations.
基金funded by the English Department of Health/Health and Social Care Information Centrefunded by the Scottish Executive+1 种基金supported by a Ph.D. scholarship from Taif University in Taif, Saudi Arabiafunded by the National Health and Medical Research Council through a Senior Research Fellowship
文摘Background:Little is known about the association between different types of physical activity(PA)and chronic back conditions(CBCs)at the population level.We investigated the association between levels of total and type-specific PA participation and CBCs.Methods'.The sample comprised 60,134 adults aged>16 years who participated in the Health Survey for England and Scottish Health Survey from 1994 to 2008.Multiple logistic regression models,adjusted for potential confbunders,were used to examine the association between total and type-specific PA volume(walking,domestic activity,sport/exercise,cycling,football/rugby,running/jogging,manual work,and housework)and the prevalence of CBCs.Results'.We found an inverse association between total PA volume and prevalence of CBCs.Compared with inactive participants,the fully adjusted odds ratio(OR)for very active participants(≥15 metabolic equivalent h/week)was 0.77(95%confidence interval(CI):0.69—0.85).Participants reporting≥300 min/week of moderate-intensity activity and≥75 min/week of vigorous-intensity activity had 24%(95%CI:6%—39%)and 21%(95%C1:11%—30%)lower odds of CBCs,respectively.Higher odds of CBCs were observed for participation in high-level manual domestic activity(OR=1.22;95%CI:1.00-1.48).Sport/exercise was associated with CBCs in a less consistent manner(e.g.,OR=1.18(95%CI:1.06—1.32)for low levels and OR=0.82(95%CI:0.72—0.93)for high levels of sport/exercise).Conclusion'.PA volume is inversely associated with the prevalence of CBCs.
文摘Dear editor,We read with interest the commentary by Mark Tremblay and colleagues,1 which outlines the new 24-Hour Canadian sedentary behavior guidelines.These guidelines take the perspective of a continuum across the 24-h day,providing a vehicle for discussing physically active time,sitting and other sedentary time,as well as healthy sleep duration.The commentary 1 focuses on the sedentary behavior(SB)recommendations in these guidelines:(1)limiting sedentary time to8 h per day,(2)limiting recreational screen time to3 h,and(3)breaking up long periods of sitting as often as possible throughout the day.Support for this perspective was evidenced by a survey of a sample(n=126,6% of total)of Sedentary Behavior Research Network(SBRN)members2 indicating broad acceptance of these SB recommendations.1 In this response,we put this survey in context and discuss the evidence base underpinning these 3 Canadian sedentary-behavior recommendations.
