Matt answers a few ad-hoc questions from strongman Jack on Leg Extensions:

What are leg extensions good for?

Are leg extensions bad for the knees?

Are leg extensions safer than squats?

Should you point your toes during leg extensions? And how should you point them?

Are there any cons for leg extensions?

Jack picked these questions from a Google search for "leg extensions".

Sorry for the initial crackling in the video...

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