Sympathetic neural adaptations to exercise training in humans.

Area of Science:

• Physiology
• Exercise Science
• Cardiovascular Health

Background:

• Cardiovascular diseases like hypertension and heart failure are linked to heightened sympathetic nervous system activity.
• Understanding the impact of exercise on the sympathetic nervous system is crucial for cardiovascular health management.

Purpose of the Study:

• To review the role of exercise training in regulating muscle sympathetic nerve activity (MSNA) in humans.
• To focus on recent findings concerning at-risk populations and their sympathoneural adaptations.

Main Methods:

• Systematic review of studies investigating exercise training and MSNA.
• Analysis of data from both healthy adults and populations at heightened cardiovascular risk.

Main Results:

• Aerobic exercise training significantly reduces resting MSNA in individuals at heightened cardiovascular risk.
• Resting MSNA in healthy adults remains largely unchanged following exercise training.

Conclusions:

• Aerobic exercise training offers a non-pharmacological approach to modulate sympathetic nervous system activity in at-risk individuals.
• Further research is needed to fully elucidate sympathoneural adaptations to exercise training and identify knowledge gaps.