Do you lock out on exercises?

[Pharm_Fed]

What do you consider locking out? Are you referring to completely locking the joints and taking weight off the muscle?? I can see not locking out on presses (both upper and lower body) but squats and deads I don't see how you could lock out. On leg extensions I come to a full contraction which would be "locking out" and when I'm doing legs l'll stand for a moment to catch my breath, but how could you even stand up if you locked out on one of these?

I guess full extension of the joint is what I would consider locking out.

Yea, as far as locking out on squats goes, you would have to keep in mind that even when you're standing fully erect with your knees "locked," the weight is still being supported by your spinal erectors and a lot of other muscles, not just the knee joint like say a leg press

Yes, this is what I think of as locking out. Would it be more beneficial to not stand fully erect and just go up and down kind of like a piston?

Also, as I was thinking about it, as Dude said, things like leg extensions, and also tricep movements seem like they require locking out to get full contraction of the muscle. Does this sounds accurate?