Training Load and Energy Expenditure during Military Basic Training Period

Area of Science:

• Sports Science
• Military Medicine
• Exercise Physiology

Background:

• Military basic training (BT) involves significant physical exertion.
• Understanding training load and energy expenditure is crucial for optimizing performance and preventing injury.
• Individual fitness levels can influence responses to training stimuli.

Purpose of the Study:

• To compare training load and energy expenditure during an 8-week military basic training period.
• To analyze these metrics in relation to individuals' pre-service fitness levels.
• To utilize objective measurements within an authentic military training environment.

Main Methods:

• Thirty-four male conscripts were categorized into inactive, moderate, and active groups based on pre-service physical activity.
• Maximal oxygen uptake (V˙O2max) was assessed via treadmill tests.
• Heart rate monitors and accelerometers objectively measured physical activity and calculated training impulse (TRIMP) during BT.

Main Results:

• Training load during BT was comparable to that of competitive athletes.
• The inactive fitness group experienced the highest training load (TRIMP) compared to moderate and active groups.
• Military tasks during BT were predominantly of low to moderate intensity (<6 METs).

Conclusions:

• The high training load during military basic training, mainly from prolonged low-intensity activities, rivals that of professional athletes.
• Individuals with lower initial fitness levels experience a greater relative training load.
• Tailoring military physical training to individual fitness levels is recommended for optimal outcomes.