Acute Effects of High-intensity Resistance Exercise on Cognitive Function

Area of Science:

• Exercise Physiology
• Cognitive Neuroscience
• Sports Science

Background:

• Resistance exercise is known to impact physiological and psychological states.
• The specific effects of high-intensity resistance exercise on cognitive function remain an area of active research.
• Understanding these effects can inform training protocols and cognitive enhancement strategies.

Purpose of the Study:

• To investigate the acute effects of a single bout of high-intensity resistance exercise on various cognitive functions.
• To determine if cognitive performance is enhanced or impaired following strenuous resistance training.
• To explore domain-specific influences of exercise on cognitive domains.

Main Methods:

• Ten healthy men completed a high-intensity resistance exercise protocol (6 sets of 10 repetitions at 80% 1RM barbell back squat).
• Cognitive function was assessed using the Automated Neuropsychological Assessment Metrics (ANAM) at baseline, immediately before, and immediately after exercise.
• Key cognitive domains assessed included mathematical processing, coded substitution-delay, and Go/No-Go tasks.

Main Results:

• Significant improvements in throughput were observed for the Mathematical Processing task (MTH) post-exercise compared to pre-exercise and familiarization.
• Reaction time for MTH was significantly faster post-exercise.
• Significant impairments in throughput were noted for the Coded Substitution-Delay task (CDD) post-exercise.
• Reaction time for the Go/No-Go task (GNG) was significantly faster post-exercise.

Conclusions:

• High-intensity resistance exercise appears to have domain-specific effects on cognitive function.
• Simple cognitive tasks, such as mathematical processing, may be facilitated by acute high-intensity resistance exercise.
• Complex cognitive tasks, like Coded Substitution-Delay, may be temporarily impaired following such exercise bouts.