What is the clinical evidence from this study?

Study design: Cross-Sectional. Population: Risk of depression (n=9118). Intervention: Physical activity vs. No physical activity. Primary outcome: Risk of depression (CES-D 10 score ≥ 12) (OR 0.49, 95% CI 0.28, 0.87).

August 19, 2019Open Access

Intensity, frequency, duration, and volume of physical activity and its association with risk of depression in middle- and older-aged Chinese: Evidence from the China Health and Retirement Longitudinal Study, 2015

Key Result

Moderate physical activity of 150-299 minutes per week was associated with lower odds of depression in women (OR 0.49), while vigorous physical activity ≥300 minutes per week increased risk in men.

Study Design

Type

Cross-Sectional (n=9,118)

Structured PICO

Does the intensity, frequency, duration, and volume of physical activity affect the risk of depression in middle- and older-aged Chinese adults?

Population

9,118 community-dwelling Chinese adults aged 45 years and older, assessed for physical activity patterns and risk of depression.

Exposure

Physical activity at varying intensities (vigorous, moderate, light), frequencies, durations, and volumes

Comparator

No physical activity or different levels of physical activity

Outcome

Risk of depression measured by a score of 12 or above on the 10-item Center for Epidemiologic Studies Depression Scale (CES-D 10)patient reported

Moderate physical activity is associated with a lower risk of depression in middle- and older-aged Chinese women, while excessive vigorous physical activity is associated with a higher risk in men.

Main Result

Odds Ratio: 0.49 (95% CI 0.28–0.87)

Limitations

Cross-sectional design cannot establish causal relationships
Physical activity was self-reported, which may result in recall bias and underestimation
Questionnaire only classified duration into four categories, lowering validity in calculating total volume
Findings may not be generalizable to institutionalized individuals

Abstract

BACKGROUND: The general benefit of physical activity (PA) to one's mental health has been widely acknowledged. Nevertheless, the specific type and amount of PA that associates with lower risk of depression in China awaits further investigation. The present study was conducted on middle- and older-aged Chinese population with two objectives: 1) to understand the patterns of PA; 2) to measure the associations between depression and PA at different levels from various aspects. METHODS: Using data from the China Health and Retirement Longitudinal Study (CHARLS, 2015), we selected 9118 community residents aged 45 years and older. Depressive symptoms were measured by 10-item Center for Epidemiologic Studies (CES-D 10). Multivariate logistic regression model was performed to examine the association between risk of depression and PA from four aspects including intensity, frequency, duration, and volume. RESULTS: Spending 1-2 days/week (OR = 0.58, 95% CI: 0.36, 0.91), less than 30 minutes each time (OR = 0.66, 95% CI: 0.42, 1.03) or 150-299 min/week (OR = 0.49, 95% CI: 0.28, 0.87) on Moderate Physical Activity (MPA) was associated with lower odds of depression in women. Spending 3-5 days/week (OR = 1.98, 95% CI: 1.29, 3.05) or 6-7 days/week (OR = 1.50, 95% CI: 1.07, 2.11), 4 hours and longer each time (OR = 1.65, 95% CI: 1.18, 2.32), 300 min/week or longer (OR = 1.65, 95% CI: 1.22, 2.24) on Vigorous Physical Activity (VPA) in total, or 2250 Metabolic Equivalent of Task (OR = 1.73, 95% CI: 1.26, 2.38) on Moderate-to-Vigorous PA was associated with higher risk of depression in men. CONCLUSIONS: The association between depression and PA depended largely on intensity and gender. Lower frequency, shorter duration, and moderate amount of MPA was associated with lower risk of depression in women. Risk of depression was higher in men who spent higher frequency, longer duration, and overlong time on VPA.

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Cite This Study

Wang et al. (Mon,) conducted a cross-sectional in Risk of depression (n=9,118). Physical activity vs. No physical activity was evaluated on Risk of depression (CES-D 10 score ≥ 12) (OR 0.49, 95% CI 0.28, 0.87). Moderate physical activity of 150-299 minutes per week was associated with lower odds of depression in women (OR 0.49), while vigorous physical activity ≥300 minutes per week increased risk in men.

synapsesocial.com/papers/6a1fd2eba83b1d9d0651688d https://doi.org/https://doi.org/10.1371/journal.pone.0221430

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