Muscle Damage, Inflammation, and Muscular Performance following the Physical Ability Test in Professional...

Area of Science:

• Sports Medicine
• Occupational Health
• Physiology

Background:

• Firefighting involves strenuous activity leading to fatigue and muscle damage.
• High rates of cardiovascular disease, musculoskeletal injuries, and workers' compensation claims exist in firefighting.
• Effective monitoring strategies are needed to mitigate these risks.

Purpose of the Study:

• To investigate muscle damage, muscular fatigue, and inflammation in professional firefighters after a typical shift.
• To establish baseline physiological responses and track changes over 48 hours post-exertion.

Main Methods:

• Twenty-four professional firefighters underwent standardized Physical Ability Tests.
• Evaluations included strength, power, range-of-motion, and blood markers (myoglobin, c-reactive protein) before and 48 hours after testing.
• Physiological responses were monitored for 48 hours.

Main Results:

• Significant decreases in myoglobin, grip strength, vertical jump, and sit-and-reach were observed post-Physical Ability Tests (p < 0.05).
• No significant changes in c-reactive protein were detected (p > 0.05).
• Firefighters showed reduced strength, power, and range-of-motion 24 hours after the shift.

Conclusions:

• Firefighting shifts induce significant muscle damage and fatigue.
• Decreased physical performance and increased injury risk are evident 24 hours post-shift.
• Monitoring muscle damage and fatigue is crucial for firefighter health and safety.