How did I hurt my back?
Doing shoulder shrugs????
I didn't even go heavy... I was really lazy in the gym yesterday but at least I was there and finished my workout... I didn't want to go heavy and load up a barbell to do my shoulder shrugs, so I just grabbed the heaviest dumbells we have in our gym (100lbs)
I can do this no problem, and have many times... but on my third set, eigth rep I felt a pain in my upper back... I put the weights down, and its been hurt ever since.... (This was about 18 hours ago)
What could I have possibly done wrong? (I was doing these standing up, and I doubt I slouched my back)
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