58, that is a very small amount to be able to leg press - I would think you need to build up some brute leg power. For example, my son went to Syracuse on a rowing scholarship, and he could leg press over a thousand pounds for repetitons. Of course massive leg power is one of the main driving forces in crew. Sprinting takes a combination of leg strength with the ability to apply said strength quickly and efficiently, which of course means fast twitch muscles. Be aware of course, that genetically, many of us are not meant to be sprinters due to a preponderance of slow twitch muscles. One of the guys I ride with is Earl Henry, who is the current masters world 500 meter sprint champion, 4 time world champion, and ex world record holder. If I sprint with him, it would be a joke. The way I can beat Earl is by pushing the pace, and dropping his butt before it is time to sprint - works every time!!
I am a big proponent of 20 repetition squats which seem to stimulate the whole body. I do them such that at about repetition 10 you cannot believe there is any chance of completing another 10. I tell myself that I will die prior to racking up the barbell rather than not reach the 20.