You'd think 'hurt my back' would be synonymous with injury, phrased that way, but good to know... in very not-same-level-at-all news I recently felt like I might've partially torn some ligament/muscle/thing around my right shoulder while testing frisbee golf with a weight vest on recently, but that seems to have healed, light stretching/bit more controlled movement/no stopping/all good now hopefully! Thoughts on weight vests btw? Do you use them/have you tried them? Or wrist weights/whatever alternative versions there are that you can supposedly use for a little extra endurance boost with any regular kind of cardio.
Valsalva Maneuver hmm, interesting. 'exhaling against your closed glottis', how does that work in practice? Do you basically just hold your breath or actually excert pressure on that inescapable exchale? How much if so?
Third video: is your arm really supposed to be wobbling like that each time you put down the bar? Almost seemed like your elbow was hurting at the end of it.
Don't mind the full nerd mode at all. :) I'm not as committed at the moment but interesting to learn this stuff.
Cyberdevil
Don't think I would've realized fully what an impressive feat this was if you didn't pull out those stats! Big props! You're turning into a real beast these days..
How does your back feel doing this kind of stuff? Ever any trouble?
Fro
You're about to watch me go full nerd mode.. sorry in advance.
Short version: I've hurt my back and with the help of a sports doctor that I visit monthly have learned what hurt means. Most of the time it means to continue lifting. (This is not advice for you, this is what I've learned about me with my doctor!) I've learned a valuable lesson on the difference between hurt and injured. Even through more painful "hurts" I've learned that continuing to strengthen and increase blood flow to the area to increase healing.
As for injuries, I've had 0 injuries lifting so far. Knock on wood.
On the 210 lift I tweaked my lower back/hip. It hurt pretty bad for about a solid week, but the only time it felt better was under weight. This told me it definitely wasn't an injury if it felt great to move it. I continued lifting like normal without any set backs. It got better every day.
It was my fault for not properly bracing. Even on the video of the 225 lift I should have braced properly when lifting the bar off the rack. I didn't, which involved me almost instantly losing balance. (You can see when I take a bunch of small steps, this wasn't intentional, I should have two stepped out, but because I didn't brace I almost tripped under the weight. Luckily I caught myself and didn't have to rerack the weight)
It's a really interesting maneuver that takes a bit of practice. You know when you do it right because the weight seems to move much smoother when performed.
You can read about it here:
https://www.artofmanliness.com/articles/how-to-breathe-when-lifting-weights/
Basically, it's filling your stomach area with air and bracing hard against it with your core muscles. This creates an air cast around your spine and puts you in an extremely strong and stable position. If you wear a lifting belt, you can cause even more internal pressure and gain even more strength. It's a funny concept that a belt around your stomach can cause an increase of internal pressure and pushing strength in your arms, but it does.
You can still hurt yourself if you use wrong form or with weights your body isn't ready for. It does make you a lot stronger though. Not using it will almost always cause injury when dealing with heavy weights. A belt doesn't prevent injury either, just allows you to perform the maneuver stronger.
It's highly recommended on OHP, Bench, Deadlift, and Squat. Complete the rep, reset, fill with air, brace, repeat. When you get good at it you can learn how to do it mid lift. On OHP and Bench I can release the air when the bar is at lock out, refill and brace on the way down, and be ready to go again.
Here's an example of me doing it on a higher rep bench press. You won't be able to see me do the bracing, but I'm able to do it without any pause: https://twitter.com/TheCoachFro/status/1324468224797237248
I can't do this on deadlift and squat as well. I'm not too interested in trying either because of how heavy the weights get on those lifts.
Here's an example of how needing to rebrace between each rep on deadlift: https://twitter.com/TheCoachFro/status/1319796003692670976?s=20