scholarly journals Amount and Intensity of Leisure-Time Physical Activity and Lower Cancer Risk

2020 ◽  
Vol 38 (7) ◽  
pp. 686-697 ◽  
Author(s):  
Charles E. Matthews ◽  
Steven C. Moore ◽  
Hannah Arem ◽  
Michael B. Cook ◽  
Britton Trabert ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cancer Risk ◽  
Health Care Providers ◽  
Dose Response ◽  
Lower Risk ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Care Providers ◽  
Cancer Types ◽  
Vigorous Intensity

PURPOSE To determine whether recommended amounts of leisure-time physical activity (ie, 7.5-15 metabolic equivalent task [MET] hours/week) are associated with lower cancer risk, describe the shape of the dose-response relationship, and explore associations with moderate- and vigorous-intensity physical activity. METHODS Data from 9 prospective cohorts with self-reported leisure-time physical activity and follow-up for cancer incidence were pooled. Multivariable Cox regression was used to estimate adjusted hazard ratios (HRs) and 95% CIs of the relationships between physical activity with incidence of 15 types of cancer. Dose-response relationships were modeled with restricted cubic spline functions that compared 7.5, 15.0, 22.5, and 30.0 MET hours/week to no leisure-time physical activity, and statistically significant associations were determined using tests for trend ( P < .05) and 95% CIs (< 1.0). RESULTS A total of 755,459 participants (median age, 62 years [range, 32-91 years]; 53% female) were followed for 10.1 years, and 50,620 incident cancers accrued. Engagement in recommended amounts of activity (7.5-15 MET hours/week) was associated with a statistically significant lower risk of 7 of the 15 cancer types studied, including colon (8%-14% lower risk in men), breast (6%-10% lower risk), endometrial (10%-18% lower risk), kidney (11%-17% lower risk), myeloma (14%-19% lower risk), liver (18%-27% lower risk), and non-Hodgkin lymphoma (11%-18% lower risk in women). The dose response was linear in shape for half of the associations and nonlinear for the others. Results for moderate- and vigorous-intensity leisure-time physical activity were mixed. Adjustment for body mass index eliminated the association with endometrial cancer but had limited effect on other cancer types. CONCLUSION Health care providers, fitness professionals, and public health practitioners should encourage adults to adopt and maintain physical activity at recommended levels to lower risks of multiple cancers.

scholarly journals Physical Activity in Adolescents following Treatment for Cancer: Influencing Factors

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Marilyn Wright ◽  
Angie Bryans ◽  
Kaylin Gray ◽  
Leah Skinner ◽  
Amanda Verhoeve
Keyword(s):  
Physical Activity ◽  
Health Care Providers ◽  
Leisure Time ◽  
Qualitative Data ◽  
Comparison Group ◽  
Leisure Time Physical Activity ◽  
Activity Levels ◽  
Care Providers ◽  
Physical Activity Levels ◽  
Barriers To Physical Activity

The purpose of this study was to examine physical activity levels and influencing individual and environmental factors in a group of adolescent survivors of cancer and a comparison group. Methods. The study was conducted using a “mixed methods” design. Quantitative data was collected from 48 adolescent survivors of cancer and 48 comparison adolescents using the Godin Leisure-Time Exercise Questionnaire, the Fatigue Scale—Adolescents, and the Amherst Health and Activity Study—Student Survey. Qualitative data was collected in individual semistructured interviews. Results. Reported leisure-time physical activity total scores were not significantly different between groups. Physical activity levels were positively correlated with adult social support factors in the group of adolescent survivors of cancer, but not in the comparison group. Time was the primary barrier to physical activity in both groups. Fatigue scores were higher for the comparison but were not associated with physical activity levels in either group. The qualitative data further supported these findings. Conclusions. Barriers to physical activity were common between adolescent survivors of cancer and a comparative group. Increased knowledge of the motivators and barriers to physical activity may help health care providers and families provide more effective health promotion strategies to adolescent survivors of pediatric cancer.

Leisure-Time Physical Activity and Mortality in CKD: A 1999–2012 NHANES Analysis

2020 ◽  
Vol 51 (11) ◽  
pp. 919-929
Author(s):  
Nan-Hui Zhang ◽  
Ran Luo ◽  
Yi-Chun Cheng ◽  
Shu-Wang Ge ◽  
Gang Xu
Keyword(s):  
Physical Activity ◽  
Dose Response ◽  
Lower Risk ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Total Duration ◽  
Optimal Dose ◽  
Cox Proportional Hazards ◽  
Mortality Data ◽  
All Cause Mortality

<b><i>Background:</i></b> For patients with CKD, evidence on the optimal dose of physical activity and possible harm with excessive exercise is limited. This study aimed to analyze the dose-response association between leisure-time physical activity (LTPA) and mortality in those with CKD and explore the optimal dose or possible harm associated with increased levels of LTPA. <b><i>Methods:</i></b> 4,604 participants with CKD from the 1999 to 2012 National Health and Nutrition Examination Surveys with linked mortality data obtained through 2015 were classified into 6 groups: 0, 1–149, 150–299, 300–599, 600–899, and ≥900 min/week based on the total duration of the self-reported LTPA. Multivariable-adjusted Cox proportional hazards models were used to examine dose-response associations between LTPA and mortality. <b><i>Results:</i></b> During the median follow-up of 114 months, 1,449 (31%) all-cause deaths were recorded. Compared to the inactive group (0 min/week), we observed a 22% lower risk of all-cause mortality (hazard ratio [HR], 0.78; 95% confidence interval [CI], 0.63–0.97) among participants who performed 1–149 min per week for LTPA. The corresponding HRs and 95% CIs for all-cause mortality for 150–299 and 300–599 min/week of LTPA were 0.79 (0.64–0.97) and 0.74 (0.56–0.98). The benefit appeared to reach a threshold of a 43% (HR, 0.57; 95% CI, 0.36–0.91) lower risk of all-cause mortality among individuals performing 600–899 min/week for LTPA. Importantly, for ≥900 min/week of LTPA, the continued benefits were observed (HR, 0.62; 95% CI, 0.44–0.87). <b><i>Conclusion:</i></b> LTPA was associated with lower mortality in those with CKD. The optimal dose was observed at the LTPA level of approximately 600–899 min/week, and there were still benefits rather than the excess risk with LTPA levels as high as ≥900 min/week. Therefore, clinicians should encourage inactive CKD patients to perform LTPA and do not need to discourage CKD patients who already adhere to long-term physical activity.

scholarly journals Association of Physical Activity and Sitting Time with Overweight/Obesity in Chinese Occupational Populations

Obesity Facts ◽  
2021 ◽  
pp. 1-7
Author(s):  
Fan Yuan ◽  
Weiyan Gong ◽  
Caicui Ding ◽  
Hui Li ◽  
Ganyu Feng ◽  
...  
Keyword(s):  
Physical Activity ◽  
Lower Risk ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Active Transportation ◽  
Sitting Time ◽  
Work Time ◽  
Transportation Mode ◽  
Activity Intensity ◽  
Female Employees

<b><i>Abstract:</i></b> The aim of this study was to explore association of physical activity and sitting time with overweight/obesity in Chinese occupational populations for the development of intervention and prevention strategies for obesity. <b><i>Methods:</i></b> A total of 23,112 participants were selected from the 2010–2012 China National Nutrition and Health Survey (CNNHS). A logistics regression model was used to examine the associations of physical activity and sitting time with overweight/obesity by gender after adjusting for age, educational level, marital status, and family economic level. <b><i>Results:</i></b> The prevalence of overweight/obesity based on the WHO definition and the WGOC definition was 30.8% and 41.3%, respectively. Male employees with moderate and heavy occupation activity intensity had a lower risk for overweight/obesity than those with light occupation activity intensity (moderate: OR 0.90, 95% CI 0.82–0.98; heavy: OR 0.75, 95% CI 0.65–0.86), and the risk of overweight/obesity of male employees with long work-time spent sitting was higher than those with short work-time spent sitting (2–4.9 h/day: OR 1.26, 95% CI 1.14–1.40; ≥5 h/day: OR 1.29, 95% CI 1.15–1.44). The risk of overweight/obesity of male employees with active transportation mode was lower than those with inactive transportation mode (OR 0.91, 95% CI 0.84–0.99), while the risk of overweight/obesity of female employees with active transportation mode was higher (OR 1.14, 95% CI 1.04–1.25). Female employees with leisure-time physical activity (LTPA) for ≥150 min/week had lower risk of overweight/obesity than those with LTPA for &#x3c;150 min/week (OR 0.69, 95% CI 0.56–0.84). There was no significant association of leisure-time sitting and housework time with overweight/obesity in Chinese occupational populations. <b><i>Conclusion:</i></b> Occupation activity intensity, LTPA, transportation mode, and work sitting time were associated with overweight/obesity. Reducing work sitting time, moderate and heavy occupation activity intensity, and an active transportation mode could help male employees decrease the risk of overweight/obesity. Increasing leisure-time physical activity could reduce the risk of overweight/obesity in women. Our findings provided insight into the association of physical activity and sitting time with overweight/obesity. It will be necessary to carry out workplace-based interventions, have an active transportation mode, and increase leisure-time physical activity to decrease the risks of overweight/obesity.

scholarly journals Leisure-Time Physical Activity and Cancer Risk Among Older Adults: A Cohort Study

2020 ◽  
Vol 4 (2) ◽  
pp. 115-125 ◽  
Author(s):  
Gali Cohen ◽  
David M. Steinberg ◽  
Lital Keinan-Boker ◽  
Or Shaked ◽  
Abigail Goshen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Cohort Study ◽  
Cancer Risk ◽  
Leisure Time ◽  
Leisure Time Physical Activity

Dose–Response Relationship of Total and Leisure Time Physical Activity to Risk of Heart Failure

2014 ◽  
Vol 7 (5) ◽  
pp. 701-708 ◽  
Author(s):  
Kasper Andersen ◽  
Daniela Mariosa ◽  
Hans-Olov Adami ◽  
Claes Held ◽  
Erik Ingelsson ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Failure ◽  
Dose Response ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Response Relationship ◽  
Dose Response Relationship ◽  
Relationship Of

scholarly journals Different domains of self-reported physical activity and risk of type 2 diabetes in a population-based Swedish cohort: the Malmö diet and Cancer study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Pascal M. Mutie ◽  
Isabel Drake ◽  
Ulrika Ericson ◽  
Stanley Teleka ◽  
Christina-Alexandra Schulz ◽  
...  
Keyword(s):  
Physical Activity ◽  
Type 2 Diabetes ◽  
Dose Response ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Population Based ◽  
Diabetes Risk ◽  
Cancer Study ◽  
Diet And Cancer

Abstract Background While a dose-response relationship between physical activity and risk of diabetes has been demonstrated, few studies have assessed the relative importance of different measures of physical activity on diabetes risk. The aim was to examine the association between different self-reported measures of physical activity and risk of type 2 diabetes in a prospective cohort study. Methods Out of 26,615 adults (45–74 years, 60% women) in the population-based Swedish Malmö Diet and Cancer Study cohort, 3791 type 2 diabetes cases were identified from registers during 17 years of follow-up. Leisure-time (17 activities), occupational and domestic physical activity were assessed through a questionnaire, and these and total physical activity were investigated in relation to type 2 diabetes risk. Results All physical activity measures showed weak to modest associations with type 2 diabetes risk. The strongest association was found in the lower end of leisure-time physical activity in dose-response analysis at levels approximately below 22 MET-hrs/week (300 min/week) representing around 40% of the population. Compared with the lowest quintile, the moderate leisure-time physical activity category had a 28% (95% CI: 0.71, 0.87) decreased risk of type 2 diabetes. Total physical activity showed a similar, but weaker, association with diabetes risk as to that of leisure-time physical activity. Domestic physical activity was positively and linearly related to diabetes risk, HR = 1.11 (95% CI: 0.99, 1.25) comparing highest to lowest quintile. There was no association between occupational physical activity and diabetes risk. Conclusion A curvilinear association was observed between leisure-time physical activity and risk of diabetes. Beyond a threshold level of approximately 22 MET-hrs/week or 300 min/week, no additional risk reduction was observed with increase in physical activity.

Are Canadians meeting the guidelines for moderate and vigorous leisure-time physical activity?

2009 ◽  
Vol 34 (4) ◽  
pp. 707-715 ◽  
Author(s):  
Shirley N. Bryan ◽  
Peter T. Katzmarzyk
Keyword(s):  
Physical Activity ◽  
Health Surveys ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Vigorous Physical Activity ◽  
Moderate Intensity ◽  
Lower Income ◽  
Younger Adults ◽  
Vigorous Intensity ◽  
Using Data

The purpose of this study was to determine the proportion of Canadian adults (aged 18–55 years) who met the guidelines for moderate and vigorous physical activity set out in Canada’s Physical Activity Guide to Healthy Active Living. Leisure-time physical activity energy expenditure from moderate- and vigorous-intensity activities was calculated using data from the National Population Health Surveys (1994–1998) and the Canadian Community Health Surveys (2001–2007). The prevalence was estimated for no leisure-time physical activity, meeting only the moderate guideline, meeting both the moderate and vigorous guidelines, and meeting the guidelines through a combination of moderate and vigorous activities. Logistic regression was used to determine the odds of meeting the guidelines by various demographic characteristics. The prevalence of no activity did not change appreciably over time, ranging from 6.5% to 10%, depending on the survey year. Reporting of no activity was more prevalent among older adults, those in lower income groups, and those with a body mass index (BMI) ≥30 kg·m–2. Overall, 65% of adults met the guidelines for physical activity in 2007, which has increased from 54% in 1994–1995. Men, younger adults, those with a higher income, and those with a lower BMI more often met the guidelines. Among all subgroups, meeting the guidelines was most often accomplished through participation in moderate-intensity activities. These findings should be considered when designing and implementing public health interventions that promote participation in daily physical activity.

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