If you can do these 3 seated movements without stopping at 60, your flexibility is top-tier

Flexibility test at 60, guided by a certified trainer, using 3 seated movements to assess hips, spine, and hamstrings.
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13 simple hamstring exercises and stretches to strengthen and lengthen the backs of your legs

Stand with your feet directly underneath your hips and place your hands lightly behind your head with elbows wide. Slowly ...