Enhancing cognitive function through blood flow restriction: An effective resistance exercise modality for...

Area of Science:

• Neuroscience
• Exercise Physiology
• Gerontology

Background:

• Cognitive decline disproportionately affects women, increasing their risk for neurodegenerative diseases.
• Neurotrophic factors, including BDNF, VEGF, and IGF-1, play crucial roles in cognitive function.
• Traditional high-load resistance exercise may not be suitable for all populations, necessitating alternative interventions.

Purpose of the Study:

• To investigate the acute effects of low-load resistance exercise with blood flow restriction (LLBFR) on cognitive function and neurotrophic factors in middle-aged women.
• To compare LLBFR with low-load resistance exercise (LLRE) and moderate-load resistance exercise (MLRE).

Main Methods:

• A randomized crossover trial involving 15 healthy middle-aged women.
• Four conditions were tested: control (CON), LLRE, LLBFR, and MLRE.
• Cognitive function was assessed using the color-word matching Stroop task (CWST), and serum levels of BDNF, VEGF, and IGF-1 were measured.

Main Results:

• LLBFR significantly improved CWST reaction time, indicating enhanced cognitive performance.
• Serum BDNF and VEGF levels increased significantly following LLBFR and MLRE.
• Lactate concentrations were positively correlated with changes in BDNF and VEGF.

Conclusions:

• A single session of LLBFR effectively improved cognitive function and upregulated key neurotrophic factors in middle-aged women.
• LLBFR presents a promising, accessible intervention for promoting cognitive health in this population.