The second pathway, the glycolytic pathway, is the primary energy system used for exercise lasting from 15 seconds to three minutes. People running an 800-meter event, for example, use this ...

New research reveals how oxygen processing during exercise affects muscle damage. Learn evidence-based strategies to optimize training intensity, recovery, and reduce injury risk.

A perfect example of anaerobic exercise is high-intensity interval training (HIIT), according to the exercise physiologist Richard Avery. “HIIT is also a popular and effective way of ...

Your body’s 3 energy systems—and how to tap into each one 01 To maximize your energy systems, train hard. Recover harder. 02 A typical weekly schedule could look like for an endurance athlete 03 ...

Oftentimes, you will see these energy systems defined by a specific period of time. Anaerobic alactic provides energy for up to 10 seconds, anaerobic lactic works for 10-90 seconds, and aerobic ...