Adherence
Engaging in higher levels of physical activity (≥90 minutes/day) is associated with a statistically significant reduction in the risk of incident clinical depression in older women compared to low activity levels (<10 minutes/day).
To lower your risk of clinical depression, aim for at least 90 minutes of physical activity per day. This doesn't require intense gym workouts; walking, jogging, or gardening all count. The study shows that combining this activity with limiting television watching (to under 5 hours a week) provides the strongest protection. Start with walking, as it is the most common and accessible form of activity for older women.
Higher levels of PA were associated with lower depression risk. The multivariate relative risk comparing the highest level of PA (≥90 minutes/day) with the lowest (<10 minutes/day) was 0.80 (95% confidence interval: 0.70, 0.92; Ptrend < 0.001).
Why this rating
Large prospective cohort (n=49,821), long follow-up (10 years), adjusted for multiple confounders, but observational design prevents causal inference.
Source
Relation Between Clinical Depression Risk and Physical Activity and Time Spent Watching Television in Older Women: A 10-Year Prospective Follow-up Study
Michel Lucas et al. · American Journal of Epidemiology · 2011
DOI 10.1093/aje/kwr218
More from this paper
- Spending 21 or more hours per week watching television is associated with an increased risk of clinical depression compared to watching 0-1 hour per week.Good
- The combination of high physical activity (≥90 minutes/day) and low television watching (0-5 hours/week) results in the strongest reduction in clinical depression risk compared to the combination of low activity and high TV watching.Good
Related findings · Adherence
- Regular physical activity (at least 150 minutes/week of moderate-intensity) reduces all-cause and cardiovascular mortality by 20-30% and lowers the risk of type 2 diabetes by 25-35%.Strong
- Increasing physical activity from a sedentary lifestyle to an active one in middle adulthood significantly reduces the risk of coronary events compared to remaining sedentary.Strong
- Resistance exercise is the only intervention capable of consistently restoring muscle function and strength in sarcopenia, partially overcoming age-related anabolic resistance.Strong
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