Arched back is an issue when squatting or dead lifting or other movements with significant vertical load on the back. Not the case with bench pressing. Bouncing out of a squat is also perfectly safe.
I think it's worth saying that they are advanced techniques that have a decent potential for injury. Inexperienced people should avoid them entirely. Even experienced lifters should have someone trained watching them as a spotter. Remember, your back needs to be arched for the entire set. Anything else is likely to cause injury.
I very much disagree about bouncing out of a squat. Maybe while warming up or with light weight it's ok, but with heavy weights, the safest technique is a steady and smooth motion while staring at the top of the rack to force a straight back.
Arched back is an issue when squatting or dead lifting or other movements with significant vertical load on the back. Not the case with bench pressing. Bouncing out of a squat is also perfectly safe.
I think it's worth saying that they are advanced techniques that have a decent potential for injury. Inexperienced people should avoid them entirely. Even experienced lifters should have someone trained watching them as a spotter. Remember, your back needs to be arched for the entire set. Anything else is likely to cause injury.
I very much disagree about bouncing out of a squat. Maybe while warming up or with light weight it's ok, but with heavy weights, the safest technique is a steady and smooth motion while staring at the top of the rack to force a straight back.
Oh the staring bit is a good idea. I didn't know that.
Yep! It's a trick my coach taught me in highschool, it works great and keeps it simple