Exercise Physiology

3 articles

How Satellite Cells Rebuild Your Muscle: The Sequence from Damage to Hypertrophy

Resistance training causes microscopic muscle damage, activating dormant satellite cells. These cells then multiply and fuse with muscle fibers, adding nuclei to drive repair and hypertrophy.

Elena Pappas·October 29, 2026

Athlete performing a heavy deadlift on one side and a high-intensity sprint on a track on the other, symbolizing hybrid fitness.

Strength & Conditioning

Hybrid fitness challenges redefine strength and conditioning

Just ten 6-second maximal sprints performed 15 minutes before a strength session can completely block the activation of mTOR, a key pathway for muscle growth, according to athletedata .

Elena Pappas·September 4, 2026

A marathon runner crossing the finish line showing signs of extreme exertion, with medical professionals observing in the background.

Training Theory

Marathon runners show post-race spikes in cardiac biomarkers

After crossing the finish line, many marathon runners exhibit blood markers for heart damage that exceed clinical thresholds.

Hana Kim·June 12, 2026