T Nation

Arguments For/Against Locking Knees Out on Leg Press?


#1

Just looking for opinions on using the leg press machine for injured and de-conditioned personnel on whether people should or should not lock out there knees at the top of the movement. I have always been of the opinion that you should keep the tension on the muscle and not the knee joint.


#2

Bret Contreras and Dean Somerset have both written about the possible benefits of the leg press in general.

I general suggest using a full ROM (full contraction to full extension) on most exercises exercises for most people. “Deconditioned” and “injured” would be taken on a case-by-case basis depending on their specific issues/limitations.

[quote=“ward320, post:1, topic:224044”]
I have always been of the opinion that you should keep the tension on the muscle and not the knee joint.[/quote]
With leg presses, squats, or any lower body exercise, It’s possible to lockout without exaggerating knee stress. It’s not necessarily either/or. But if the hypothetical client has pre-existing knee issues, then it’s probably best to use a deliberately shortened ROM and/or modify the exercise to preserve and prioritize knee health (possibly choosing another exercise entirely).


#3

I tried the non lock out method on leg press this summer and my knees hurt for three weeks. Yet on squats I’ve fone them on down set no problems.