Physiological and Psychological Effects of Treadmill Overtraining Implementation.

Area of Science:

• Exercise physiology
• Sports science
• Animal models

Background:

• Overtraining syndrome negatively impacts athlete health and performance.
• Understanding the physiological basis of overtraining is crucial for developing interventions.

Purpose of the Study:

• To establish an overtraining animal model in C57BL/6 mice.
• To investigate the physiological and psychological effects of chronic exhaustive exercise.
• To identify potential targets for overtraining syndrome prevention and treatment.

Main Methods:

• Mice subjected to daily exhaustive treadmill exercise for 8 weeks.
• Comparison of physiological and psychological outcomes with regular exercise and sedentary groups.
• Assessment of growth, glucose tolerance, metabolism, cytokine levels, gene expression, and behavior.

Main Results:

• Exhaustive exercise led to reduced endurance, imbalanced energy expenditure, decreased body fat, and slowed growth.
• Elevated inflammatory cytokines (TNF-α, IL-6, IL-1β) and immune cells (neutrophils, monocytes) observed.
• Overtraining induced increased anxiety and reduced food intake.

Conclusions:

• An imbalance between exercise and recovery significantly impairs health and performance.
• This animal model demonstrates the maladaptive consequences of overtraining.
• The model can be used to test strategies for overtraining syndrome treatment and prevention.