just a heads up, sorry for my bad english its not my language, hope it makes sense =P I have developed pretty bad RSI in many years due to using my computer a lot in wrong posture, also working at the office for many many years in front of the computer. I have been suffering from intense pain in my wrists / legs / forearms and only about year ego or so i stared using better posture and avoiding my computer. Got gel mats and all of that stuff, been to the doctors but they couldn't rly help me and juts gave me special wrist things to wear. Anyhow... its much better now but its still there and my hands go numb ish sometimes and i still have little pain, but nothing to cry about, its much better now then before. I also been going to the gym and swimming, that may have helped me a lot I started doing thai boxing few weeks ago and didnt rly had a full kicking season with the bag, i am still waiting for it to arrive. I want to try and see if its going to cause me any pain when i am punching it with good power for as long as i can. I am just worried that my hands will get to weak and tired very fast, i have experienced this with hand writing, my hands get very tired when i am writing and also i cant seem to hold them up for a long time i start to feel weakness in my wrists and specially forearms I was just wondering if any one have same problem or maybe heard anything about it ? maybe martial arts will give me strength and heal my RSI problem :O ? i have done a lot of research and this type of injury dont heal with medicine it seems... its psychological.