I enjoy reading the variety of strategies people give. Always interesting.
One thing that I find missing with strength training is how connection tissues, ligaments, and tendons are maintained and repaired. As the aging process progresses, according to Dr. Keith Baar, “… as one ages, the primary changes in ligaments and tendons are a decrease in the number of cells and a very slow turnover of the core collagen matrix making them more susceptible to injury and less able to adapt or repair effectively.” Even at a younger age, these injuries are impactful. A study of NFL players who had injuries like Achilles tears had a much higher incidence of heart disease vs their uninjured peers. (I personally think the decrease in type 2 fast twitch muscle fibers is due primarily to injuries and the aging process. There is not the capacity to use those type 2 muscle fibers because of the declining capacity of the connective tissue.)
The following are principals for maintaining or repairing connective tissue:
- There is a 10 minute window to provide a stimulus to the injured tissue. After 10 minutes you are not making any gains
- The stimulus comes in the form of a isolation hold. No movement necessary.
- The stimulus can be surprisingly low, particularly with a new injury. (this is not like strength training a muscle).
- The period where you can again apply the stress/load is after 6-8 hours. So you can rehab 2-3 times daily. (again, different than strength training where 48 hours is needed between working muscle groups)
- Taking collagen and Vit C before the stress is helpful. When you are applying the isometric holds, you are squeezing the tissue like a sponge and releasing. Connective tissue otherwise is difficult to provide blood flow and nutrients like collagen.
An interesting video using these basic principals is the example of a rock climber with and hand injuries and pain.
It is great to set goals and see results from strength training. But my observation at 71 is that knowing when to back off and prevent injury is a very difficult thing to do no matter what the activity. Our workouts become habitual and literally wired into our brain. The insults that come with injuries and how people do or don’t recover is to me the more evident result of aging than appearance or any of the other hallmarks of aging.

