Compression Garments and Recovery from Eccentric Exercise: A (31)P-MRS Study.

Area of Science:

• Exercise Physiology
• Biomedical Engineering

Background:

• Eccentric exercise offers benefits but can cause muscle damage.
• Compression garments are proposed to mitigate muscle damage and maintain function.
• Metabolic recovery following eccentric exercise requires further investigation.

Purpose of the Study:

• To investigate the effects of compression garments on metabolic recovery after eccentric exercise.
• To assess muscle metabolites and perceived soreness following downhill walking with and without compression.
• To determine if compression influences cellular repair processes.

Main Methods:

• Participants underwent 30 minutes of downhill walking.
• Compression garments were applied to one leg (COMP), with the other serving as a control (CONT).
• Muscle metabolites (PME, PDE, PCr, Pi, ATP) were measured using (31)P-magnetic resonance spectroscopy at baseline, 1-h, and 48-h.
• Perceived muscle soreness and garment pressure were recorded.

Main Results:

• Both legs showed increased muscle soreness and reduced pH at 1-h post-exercise.
• No significant differences in pH or most metabolites were observed between COMP and CONT legs.
• Compression garment legs exhibited elevated skeletal muscle phosphodiester (PDE) at 1-h post-exercise.

Conclusions:

• Eccentric exercise impairs skeletal muscle pH control but not cellular energy control.
• Compression garments may influence indices related to muscle membrane repair and turnover post-exercise.
• Compression garments do not alter perceived muscle soreness but may aid metabolic recovery.