Similar thought. Article states you can use both arms/legs to lift and one to place down. Both arms to do the curl up, one arm to bring down. Both legs on the t

Similar thought. Article states you can use both arms/legs to lift and one to place down. Both arms to do the curl up, one arm to bring down. Both legs on the the leg press machine up, one down. Butlers likely would also work, but wasn't studied ;)