Network meta-analysis of exercise interventions for cognitive function in sedentary adults
This systematic review and network meta-analysis assessed the efficacy of exercise interventions including aerobic, resistance, and multicomponent exercise compared to sedentary controls. The analysis included 2,187 sedentary adults and focused on cognitive outcomes such as global cognition, executive function, and memory function. The authors synthesized findings using SUCRA rankings and standardized mean differences to rank intervention effectiveness across different cognitive domains.
The results indicated that multicomponent exercise was most effective for global cognitive function with a SUCRA of 88.5%, followed by aerobic exercise at 58.3% and resistance exercise at 48.5%. For executive function, aerobic exercise ranked highest with a SUCRA of 90.8%, followed by multicomponent exercise at 50.7% and resistance exercise at 38.1%. Memory function demonstrated a small-to-moderate improvement with a standardized mean difference of 0.33, though the 95% CI ranged from -0.02 to 0.68 and did not reach statistical significance.
The authors note that direct comparisons were rated as moderate quality, whereas most indirect and mixed comparisons showed very low certainty. Safety data including adverse events, serious adverse events, discontinuations, and tolerability were not reported. The practice relevance supports targeting exercise prescriptions to specific cognitive goals. Further high-quality research is warranted for confirmation of these findings.