A fast, equipment-free assessment designed by strength and lifestyle experts in the U.S. to measure core stability, lower-body strength, and movement control in just seven minutes.

Start on all fours. Extend your right arm in front of you and your left leg behind, actively reaching in opposite directions.

Leg day is often the most dreaded yet rewarding part of any fitness regimen. Testing your leg strength isn't just about showing off—it's about understanding your body's capabilities, tracking progress ...

We’ve all been there: holding at the bottom of a squat or plank, feeling your legs start to quiver like crazy. Congrats—you’ve experienced the burn of an isometric hold. These strength-boosting pauses ...

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Getting up from a low couch or rising from a restaurant booth without grabbing the table—these everyday movements reveal more about your fitness than most gym exercises. I've worked as a personal ...

Several aspects of your leg's strength and stability can be determined with a straight leg raise test (SLR). A doctor performs a straightforward leg test by lying the patient flat on a bed and raising ...