Why is my arm hurting?

[Ronaldo]

Originally Posted by Rozroz

yea... what did he mean- technique?? in what way?
improving or changing the whole way he hits?

http://tt.tennis-warehouse.com/showthread.php?t=58284

[the cat petter]

I've been blindly following through on my shots and kept use the arm a lot. Around two months ago, I watched a video from Spatztennis on youtube. He said beginners should do all the advanced stuff in the beginning such as windshield wiper, following through all the way, open stance, etc. He is kinda old school but he said that later the player can do mote advanced stuff but if you don't have the fundamentals (like I didn't), you can't improve so much and it might cause pain.
Basically what I'm doing is using more closed stance and catching the racquet. Sometimes I add a bit a topspin. In with that, I won a tournament! Of course, later I'll use more advanced technique. Now I'm NOT saying you don't have incorrect technique. I'm just giving my experience. I'm not going to argue with anyone so if you don't agree, just simply ignore what I said.

[LeeD]

As the sage said, you probably injured yourself on ONE hard shot, and the compounding effect of dozens of normal shots afterwards just added to the injury.
I can say I hurt my shoulder the last time I hit. After playing 2 slow crawling sets in 90 degree heat, I went to hit with one of my strong hitting 4.0 buds. Crushing hard groundies both sides for 20 minutes, I hit the ground on one, dropped the racket, and howled in pain. The entire inside of my deltoids seem to have exploded. I still can't lift my left arm up to my shoulders, or brush my teeth, comb hair, or pull off a T-shirt with my left arm.
I'm playing Friday, and it will heal enough so I can serve 70%, usually good enough to play better than how I normally play.
Gotta go windsurfing now, the heat spell broke, and the winds should be in the 20's for sky high jumps and railing jibes.

[robbo1970]

I appreciate any views. I think I have solved the problem in that my alloy racket with a leather grip resulted in a lot of vibration. Easily solved, I either stick on a thick synth grip if buy the bio 300 that I really like.