I have been weight training for 12 years. My wake up call was 12 years ago when I had to lay down on the tramp before I could take the boat down after a 2 day regatta.
There are several levels of weight training and it is possible to do a lot of hard work with minimal benefit or set yourself to get hurt. If you are new to weight training find out how to train. The trainers that work at gym's are minimal. A Sports Medicine program is a lot better.If you are really serious and like to hurt, a sports trainer. Finally don't forget to work your back. Stronger arms and legs can put a lot of stress on the back.