BACKGROUND: Epidemiologic research suggests that physical activity is associated with decreased prevalence of depression. However, the relationship between physical activity accumulated in various domains and depression remains unclear. Further, previous population-based studies have predominantly utilized self-reported measures of physical activity and depression symptom subscales. Associations between physical activity in various domains (leisure, work, active commuting, yard/household) and depression were examined using both subjective and objective measures of physical activity and a diagnostic measure of depression. METHODS: Analyses (conducted in 2007) included data from 1995 young adults participating in a national study (2004-2006). Physical activity was measured by self-report (International Physical Activity Questionnaire) and objectively as pedometer steps/day. Depression (DSM-IV 12-month diagnosis of major depression or dysthymic disorder) was assessed using the Composite International Diagnostic Interview. RESULTS: For women, moderate levels of ambulatory activity (>or=7500 steps/day) were associated with approximately 50% lower prevalence of depression compared with being sedentary (<5000 steps/day) (p trend=0.005). Relatively low durations of leisure physical activity (>or=1.25 hours/week) were associated with approximately 45% lower prevalence compared with the sedentary group (0 hours/week) (p trend=0.003). In contrast, high durations of work physical activity (>or=10 hours/week) were associated with an approximate twofold higher prevalence of depression compared with being sedentary (0 hours/week) (p trend=0.005). No significant associations were observed for steps/day in men or for other types of self-reported activity including total physical activity in both men and women. CONCLUSIONS: These findings indicate that the context in which physical activity is assessed and the measurement methods utilized are important considerations when investigating associations between physical activity and depression.
BACKGROUND: Epidemiologic research suggests that physical activity is associated with decreased prevalence of depression. However, the relationship between physical activity accumulated in various domains and depression remains unclear. Further, previous population-based studies have predominantly utilized self-reported measures of physical activity and depression symptom subscales. Associations between physical activity in various domains (leisure, work, active commuting, yard/household) and depression were examined using both subjective and objective measures of physical activity and a diagnostic measure of depression. METHODS: Analyses (conducted in 2007) included data from 1995 young adults participating in a national study (2004-2006). Physical activity was measured by self-report (International Physical Activity Questionnaire) and objectively as pedometer steps/day. Depression (DSM-IV 12-month diagnosis of major depression or dysthymic disorder) was assessed using the Composite International Diagnostic Interview. RESULTS: For women, moderate levels of ambulatory activity (>or=7500 steps/day) were associated with approximately 50% lower prevalence of depression compared with being sedentary (<5000 steps/day) (p trend=0.005). Relatively low durations of leisure physical activity (>or=1.25 hours/week) were associated with approximately 45% lower prevalence compared with the sedentary group (0 hours/week) (p trend=0.003). In contrast, high durations of work physical activity (>or=10 hours/week) were associated with an approximate twofold higher prevalence of depression compared with being sedentary (0 hours/week) (p trend=0.005). No significant associations were observed for steps/day in men or for other types of self-reported activity including total physical activity in both men and women. CONCLUSIONS: These findings indicate that the context in which physical activity is assessed and the measurement methods utilized are important considerations when investigating associations between physical activity and depression.
Authors: Liam G Glynn; Patrick S Hayes; Monica Casey; Fergus Glynn; Alberto Alvarez-Iglesias; John Newell; Gearóid OLaighin; David Heaney; Martin O'Donnell; Andrew W Murphy Journal: Br J Gen Pract Date: 2014-07 Impact factor: 5.386
Authors: Zewditu Demissie; Anna Maria Siega-Riz; Kelly R Evenson; Amy H Herring; Nancy Dole; Bradley N Gaynes Journal: J Womens Health (Larchmt) Date: 2011-06-13 Impact factor: 2.681
Authors: Xiaolin Yang; Mirja Hirvensalo; Mirka Hintsanen; Taina Hintsa; Laura Pulkki-Råback; Markus Jokela; Risto Telama; Tuija Tammelin; Nina Hutri-Kähönen; Jorma S A Viikari; Olli T Raitakari Journal: Int J Behav Med Date: 2014-12
Authors: Shannon K Crowley; Larrell L Wilkinson; Lisa T Wigfall; Alexandria M Reynolds; Stephanie T Muraca; Saundra H Glover; Nikki R Wooten; Xuemei Sui; Michael W Beets; J Larry Durstine; Roger D Newman-Norlund; Shawn D Youngstedt Journal: Med Sci Sports Exerc Date: 2015-01 Impact factor: 5.411