Why the study?
Do sedentary pastimes and physical activity levels affect cognitive performance in healthy older adults?
Do sedentary pastimes and physical activity levels affect cognitive performance in healthy older adults?
Sedentary behavior is significantly associated with executive dysfunction in healthy older adults, highlighting the negative cognitive impact of physical inactivity.
Answers are grounded in this paper and cite their sources.
Does not support practice change from this cross-sectional link; leaves open whether reducing sedentary time preserves executive function.
BACKGROUND: Moderately vigorous physical activity (MVPA) provides a protective affect against cognitive decline and cardiovascular risk factors. Less is known about sedentary pastimes or non exercise physical activity (NEPA) and cognitive performance. METHOD: 125 healthy adults 65 or older with no clinical evidence of cognitive impairment were enrolled. The CogState computerized neurocognitive battery was administered. Leisure activities were measured using the Community Health Activity Program for Seniors (CHAMPS). RESULTS: Sedentary pastimes were associated with executive dysfunction (P = 0.01); MVPA with high memory scores (P = 0.05) and NEPA with improved working memory (P = 0.05). Only sedentary pastimes and executive dysfunction retained significance after correction for multiple comparisons. Smoking and alcohol confounded the association of memory with sedentary pastimes and MVPA. CONCLUSIONS: Study highlights: negative impact of sedentary pastimes on executive function, need for additional investigation of sedentary behavior, NEPA, the impact of addictions upon activity in late life.
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Steinberg et al. (2014) studied this question.
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