It's been recently suggested to me as a 63 year-old, given a history of one injury about every 6 months including hip adductor / hamstring pull / calf strain / patellar tendon, that I should doing exercises to strength my tendons and worry less about muscles. I started with 1-legged squats on a declined plane (slow on the eccentric/down) for the patellar injury and it works great. But the body has a thousand tendons!!

How can I put together a short workout that would strengthen the critical tendons? Should it be periodized like {45 minutes every-other day only for 6 weeks every year} OR {twice a week for 10 minutes throughout the year}? More time needed?

I'd like to keep it to 5 exercises.