We started doing weight sleds for my weight training at school. I was wondering, besides cardio, what does it do? Quad endurance? And should you feel like your going to throw up and pass out after doing them? It was brutal and i dont think ive ever felt that screwed up before in my life.
Also, do Romanian Deadlifts do the exact same muscles as Glute Ham Raises. (For those of you who don't know what these are, you use the machine where you can lock your feet in behind you and theres a big pad, and u start upright with your feet at a 90 degree angle with your body and slowly extend outward until you are flat, and raise back up.) I ask because I cannot do a single GH Raise without my hamstrings and calves cramping up right away. I am searching for a substitute to build up more, so that I can do them because our trainer says the exercise is vital.
Also, do Romanian Deadlifts do the exact same muscles as Glute Ham Raises. (For those of you who don't know what these are, you use the machine where you can lock your feet in behind you and theres a big pad, and u start upright with your feet at a 90 degree angle with your body and slowly extend outward until you are flat, and raise back up.) I ask because I cannot do a single GH Raise without my hamstrings and calves cramping up right away. I am searching for a substitute to build up more, so that I can do them because our trainer says the exercise is vital.