ed257 wrote:I am 56 and have been kiting for about 10 years. I windsurfed prior to that. In addition to kiting I lift weights briefly twice per week for only about 15 minutes (High Intensity Training). No injuries from kiting, but did have shoulder surgery years ago from tennis serving. And I injured my knee years ago playing basketball. It can get sore if I kite hard and do a lot of jumping.
For those who may be interested, here's a link that explains really brief really effective workouts that won't harm your joints. Twice per week for 15 mins is all it takes.
See Youtube "BODY BY SCIENCE 7 (THE "BIG 5" WORKOUT)"