Chronic Training Load (CTL)

Chronic Training Load (CTL) summarises the cumulative stress / strain placed on the body as a result of training or physical activity. Commonly representing 4 to 8 weeks, it is usually calculated from one or more metrics, for example duration, distance, heart rate, power output, or a combination of these factors. Commonly it is limited to objective measures, but subjective factors such as Rating of Perceived Effort can be incorporated.

The purpose of monitoring acute training load is to evaluate the immediate impact of training on the body and to help coaches and athletes make informed decisions about training progression, recovery, and risk of injury.

Further Reading:

• Training Impulse (TRIMP)
• Acute Training Load (ATL)
• Training Stress Balance (TSB)