How Tendons Change in Midlife | Warming Up After 40

Added: 2026-05-27

[00:00:00]Four things change in your body that make the warm-up more important after 40, not less.

[00:00:04]One, your tendons and connective tissue change.

[00:00:07]This is a big one that a lot of us don't know about. Research published in the Journal of Applied Physiology shows that mechanical properties of tendons shift with age. You lose elastin and the collagen that makes up your tendons becomes less organized over time.

[00:00:21]The practical translation for this, your tendons get less compliant. They take longer to get ready for load and they're more vulnerable when you go from cold to heavy too fast.

[00:00:30]>> [music] >> This is why guys in their 40s and 50s start dealing with tendon issues. The Achilles, the patellar tendon, the elbows, it's not bad luck, it's connective tissue that needed a runway and didn't get one.