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Knee joint beside layered muscle shapes and an arc indicating movement.

What Can Limit Your Flexibility?

Flexibility reflects joint structure and surrounding tissues as well as stretch tolerance, so similar limits in movement can have different causes.

2 minutes read
Circular illustrations of lungs, weights, fat cells, muscle, and a flowing curve.

What Makes Up Health-Related Fitness?

Health-related fitness describes several distinct qualities, so strength in one area does not necessarily mean equal ability across the others.