8 Gym Machines You Need to Stop Using

The Machine: Lying Leg Press
Your legs are strong (after all, they carry your body around all day), so if you lie down with your legs above your head for a leg press, you have toall that weight goes straight to your lower back, which flexes under the pressure. The risk? A herniated disk. Plus, the move doesn’t even work any of the stabilization muscles in the hips, glutes, shoulders, or lower back. The result: All pain and barely any gain. load more than the equivalent of your bodyweight onto the machine to achieve significant resistance, Gaddour says. The Machine: Seated Leg Extension
Since the weight is placed so close to your ankles, the machine puts undue torque on the knee joint, which can wear down cartilage and cause knee pain, Gaddour says. While sitting is less than useful, the bigger problem here is that the machine can cause lopsided muscles. How? If one arm is weaker, the stronger one can end up doing all the work — and getting all the benefit, Gaddour says. The Machine: Loaded Standing Calf Raise
While the idea here is to lift weight with your calves, the machine’s setup — specifically the shoulder pads — means that all the weight presses down on your spine before it ever reaches your legs.
https://www.huffpost.com/entry/5-exercise-machines-you-should-never-use-at-the-gym_b_6794828