Reckitbruh
New User
Hi there! I am a first-year college tennis player from India and I was wondering if anyone could help me improve my endurance with some exercises that aren't that bad for the knees. I have had a history of knee problems over the years and I'll be honest, my endurance is pretty much the worst. I'd like to improve this, however, all the exercises that I know/have done over the years require a lot of bending (like running across the courts and touching the lines with your hand). Any advice would be greatly appreciated!