When you guys do the seated dumbbell shoulder press, do you guys arch your back slightly? Assuming the bench is set at 75-80 degrees angle (not straight up like a kayu)
I was deloading with 40 lbs presses when this PT came over and told me that I was 'pushing with my lower back'. I was stunned for a bit because I didn't know the lower back actually had a pushing function. And then he proceeded to explain to me that the reason is because there is a slight gap between my lower back and the 75-80 degree bench. He told me it is very dangerous for my lower back and that the correct way to do it is to do it with the whole back touching the bench.
I always thought it was natural to arch a little bit since our spine isn't as straight as a kayu... I thought it was curvy. I tried to do it as he told me to but I found that it puts extra strain and pressure on the lower back. Then the fella told me that it is because my lower back is weak, and that I should get a belt. I told him I'm still lifting light weights only and I have been able to maintain my form so far without much difficulties, and he was like, "Itu 40 paun dumbbell kira heavy weight, mesti pakai belt kalau buat 40 lbs"... =.= But overall I personally feel that having a slight gap isn't a problem, and is in fact natural, though I could be wrong. (Incidentally I have a friend who told me that the barbell bench press must be done with the whole back being in contact with the bench as well, which I personally feel is unnatural).
Also, he told me that when doing the shoulder presses I should make sure the dumbbell is in front my head, and that I was doing it wrong (I do it whereby the dumbbells and my head are aligned together). Need some clarification on this because he might be right too.
Anyway he kinda nagged me for a while and kept on stressing that he is correct because he is the PT, but I find that to be an invalid statement... Not all PTs are correct based on my experience. In fact, the PTs in my gym have on various occasions given me retarded and even harmful advice.
Later on when I was doing lateral raises that same PT came over to me and asked me if I took protein powder. I told him I didn't cuz its expensive (actually I do). Told him that my protein source is from daging. Then he asked me- apa binatang paling suka makan daging? At this point I knew he was going to say something retarded, and I wanted to sarcastically reply to him 'bodybuilders', but decided to play along and told him singa lah, harimau lah... Then he told me- betul lah! u tengok itu binatang semua yang suka makan daging, semua senang marah. lagi pun semua malas-malas belaka. lepas makan semua pergi tidur. oleh itu tak bagus makan daging banyak. patut makan protein powder. LMAO!!!
And when I asked him why exactly is protein powder > lean meat, he just told me, "protein dia lain lah". LMAO!!!
Ah yes, wondering if what you mentioned above is correct or wrong. As i have already had a lower back injury from sports, i would like to know whether im doing it the right way.
Hah, seriously hate all those PTs that think they know everything.