I'm a personal trainer: Try this 3-move workout to build a strong core and reduce back pain after 50

These three moves are low-impact and build a strong core without hurting your back; a personal trainer shares how to do them.

If you can hold a bridge this long after 55, your core strength is stronger than 90% of peers

A NASM-certified trainer explains how long to hold a glute bridge after 55 to test core strength.
Antonio Tonzo on MSN

Using isometrics to build strength, power and athletic performance

Using isometrics to build strength and performance by improving joint stability, control, and force production without excess fatigue #IsometricTraining #StrengthDevelopment #AthleticPerformance ...