Leg Press

[CASABLANCA]

Have you ever used a vertical leg press at your gym or home ?
On this kind of press we can put less plates than a 45° Leg press ,right ?

I have seen many guys put tons of plates on a 45° leg press and they could not squat with heavy weights.

[yogro]

i cant say i fully understand what u are asking...but with regards to squat vs press weight, for sure i can press more because i am sitting and not having to stabalise(sp) myself unlike squats which i do totaly free

[hobowitharolex]

squatting is harder than vertical press

vertical press is harder than 45 degree press

[Banditfist]

Originally Posted by hobowitharolex

squatting is harder than vertical press

vertical press is harder than 45 degree press

What he said

[betastas]

Theoretically a 45 degree leg press has it so you need to exert a force of m*g*sin(angle). In this case it becomes 0.707*weight.
However, when I throw on 540 lbs on the 45 degree, there is little direct correlation between that and my squating work load. Right now I work with 245 lbs squat, whereas 540*0.707 = 382 lbs. This is 155% more weight than my equivalent squat. I would say it's safe to say that a 45-50% weight of the leg press would be an accurate squat-legpress correlation.

It would be interesting to collect data about 6 full range reps to positive failure data between squats and the 45 degree leg press, and to find the difference. From what I have seen from others in the gyms though, less than half of the weight of the leg press is accurate for what someone can squat.

Keep in mind stabilizers play a much more important role in squats than they do in a rail-guided leg-press. If the stabilizers are weakly developed, the relationship will be in even greater favour of the leg press.

[MUGSY]

Originally Posted by betastas

I would say it's safe to say that a 45-50% weight of the leg press would be an accurate squat-legpress correlation.

For my own training, I have found this to be approximately correct.