Tip - Leg Extension Machine: Bad For Your Knees & Building Muscle?

Published 9 years, 6 month(s) ago | Submitted by Miquel Tarrazona

Everyone seems to hate the leg extension machine. They say extensions suck for building muscle and it's horrible for your knees. Here's the truth.

For further reading: http://www.aworkoutroutine.com/leg-extensions/

Posted: 9 years, 6 month(s) ago

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