Originally Posted by scotus
Let's cut the guy a little slack.
After all, he was probably typing at 150mph.
same thing used to happen to me (about feeling it in your knees- not about typing at 150 mphs), get better form and make sure your knee doesn't go past your toes, in fact don't even do lunges says my psychical therapist because I injured the connection to quad muscle and knee area and when I was back on the courts, I decided to do some lunges and came back with pain and he said lunges are horrible for your knees. Oh, and make sure if you DO do lunges stretch your HAMSTRINGS really well, because if you stretch your hamstrings it takes a lot of the work out for the quad muscle!
When you stretch your hamstrings sit down with your legs out in front of you and stretch for about 30-40 seconds, then point your toes out to the sides and stretch again for 30-40 seconds, and finally point your toes towards each other for 30-40 seconds. Hamstrings are made up of 3 segments or something like that.