Exercise session time of 30 minutes or less yields a larger working memory effect than longer sessions in chronic exercise interventions¶

Claim · All claims
Evidence · 1 study · quant-synthesis r2 · q3 · i2 medium
Currency · newest study 2020 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Chronic exercise sessions of ≤30 min produce a larger working memory effect (SMD = −0.82) than sessions >30 min (SMD = −0.35). → Liu S 2020

Evidence¶

Liu S 2020¶

Liu S, Yu Q, Li Z, Cunha PM, Zhang Y, Kong Z, Lin W, Chen S and Cai Y (2020) Effects of Acute and Chronic Exercises on Executive Function in Children and Adolescents: A Systemic Review and Meta-Analysis. Front. Psychol. 11:554915. https://doi.org/10.3389/fpsyg.2020.554915

q3 · i2 · quant-synthesis · r2

Subgroup analysis of chronic exercise effects on working memory by exercise session time (Q = 18.92, p = 0.001), showing sessions of 30 minutes or less produced a larger effect than prolonged sessions.

"A moderate and significant reduction in the ES was attributed t o the exercise session time ( ≤ 30 min, SMD = -0.82, 95% CI − 1.01 to − 0.64, p < 0.001) when compared with prolonged exercise (>30 min), which contributed to a small ES (SMD = 0.35, 95% CI − 0.47 to − 0.22, p < 0.001)"

Discussion¶

Related Claims¶

• Acute exercise significantly improves working memory in children and adolescents with a moderate effect size (SMD = −0.72)
• Chronic exercise significantly improves working memory, inhibitory control, and cognitive flexibility in children and adolescents — a broader claim this one bears on
• Age moderates exercise effects in opposite directions: adolescents benefit more for inhibitory control, younger children more for working memory — related