Evidence that women meeting physical activity guidelines do not sit less: An observational inclinometry study
| Autor: | Erik H. VanIterson, Theodore W. Zderic, Marc T. Hamilton, Susan M. Gapstur, Juned Siddique, Danielle M. Thomas, Lynette L. Craft |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Gerontology medicine.medical_specialty Cross-sectional study Health Behavior Physical fitness Physical activity Monitoring Ambulatory Medicine (miscellaneous) Behavioural sciences Guidelines as Topic Physical Therapy Sports Therapy and Rehabilitation Walking Sitting Body Mass Index 03 medical and health sciences 0302 clinical medicine Surveys and Questionnaires medicine Humans Stepping 030212 general & internal medicine lcsh:RC620-627 Aged Sedentary lifestyle Nutrition and Dietetics Non-exercise physical activity business.industry Research lcsh:Public aspects of medicine lcsh:RA1-1270 030229 sport sciences Middle Aged Inactivity physiology Sedentary behavior lcsh:Nutritional diseases. Deficiency diseases Cross-Sectional Studies Physical therapy Women's Health Female Observational study business Standing human activities Body mass index |
| Zdroj: | International Journal of Behavioral Nutrition and Physical Activity, Vol 9, Iss 1, p 122 (2012) The International Journal of Behavioral Nutrition and Physical Activity |
| ISSN: | 1479-5868 |
| DOI: | 10.1186/1479-5868-9-122 |
| Popis: | Background The inactivity physiology paradigm proposes that sedentary behaviors, including sitting too much, are independent of the type of physical activity delineated for health in the Physical Activity Guidelines for Americans. Thus, we hypothesized that, when accounting for behaviors across the entire day, variability in the amount of time spent sitting would be independent of the inter-and intra-individual time engaged in sustained moderate-to-vigorous physical activity (MVPA). Methods Ninety-one healthy women, aged 40–75 years, completed a demographic questionnaire and assessment of height and weight. Participants wore the activPAL activity monitor for one week and time (minutes/day) spent sitting, standing, stepping, and in sustained bouts (bouts ≥10 minutes) of MVPA were quantified. The women were then stratified into groups based on weekly sustained MVPA. Additionally, each day of data collection for each participant was classified as either a “sufficient” MVPA day (≥ 30 min of MVPA) or an “insufficient” MVPA day for within-participant analyses. Results Time spent sitting, standing, and in incidental non-exercise stepping averaged 64, 28, and 11 hrs/week, respectively, and did not differ between groups with individuals meeting/exceeding the current exercise recommendation of 150 min/week of sustained MVPA in ≥10 minutes bouts (M = 294 min/week, SD = 22) compared to those with none or minimal levels (M= 20min/week, SD = 4). Time spent sitting (M = 9.1 hr/day, SD = 0.19 vs. M = 8.8 hr/day, SD = 0.22), standing (M = 3.9 hr/day, SD = 0.16 vs. M = 3.9 hr/day, SD = 0.15), and in intermittent stepping (M = 1.6 hr/day, SD = 0.07 vs. M = 1.6 hr/day, SD = 0.06) did not differ between days with (~55 min/day) and without recommended MVPA. Conclusions This study provides the first objective evidence that participation in sustained MVPA is unrelated to daily sitting duration in relatively healthy, middle and older-aged women. More research is needed to extend these findings to other populations and to inform distinct behavioral recommendations focused on sedentary time. |
| Databáze: | OpenAIRE |
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