Why squats and stair climbing arnt for hamstrings?

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Why squats and stair climbing arnt for hamstrings?

Postby israel » Sat Sep 01, 2012 5:32 pm

Squats work the quadraspecs - why ? because the quadraspecs do hip flexion - but when we go up is when we do the extension of the hip and thats when we work against gravity and pull all the weight - same question about climbing stairs
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Re: Why squats and stair climbing arnt for hamstrings?

Postby thestoatyone » Sat Sep 01, 2012 6:20 pm

The quadriceps' main function is knee extension, so any time you straighten your leg you will be working them (so climbing stairs, squatting, even deadlifts to a lesser extent) One of the 4 heads of the quadriceps doe flex the hip, but only as a secondary function.

The hamstrings extend the hip, but they are bi-articulate; if your knee is flexed they don't have enough "purchase" to work properly, so some styles of squat don't use the hamstring much.

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Re: Why squats and stair climbing arnt for hamstrings?

Postby israel » Sat Sep 01, 2012 7:22 pm

Got it - thanks a lot

no further questions :)
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