"What is jerk? It is not just our new president" LOL

Lyndsey Vonn needs this right now! I do too, but I'm just a 61 YO female athlete trying to keep playing tennis. I'd love to be part of any study you do Dr. Baar. I've been incorporating your exercises for my right knee so I can get back to playing singles. The effect has been immediate.  Thank you so much!

Amazing presentation. All my questions about using isometrics for prevent injury were pointed.

🔥🔥🔥🔥🔥👍🏻👍🏻👍🏻👍🏻🤝🏻

What is the reference behind the recommendation for Collagen, whey protein and epicatechin supplements?

10 minutes of specific training  2 or 3 times a day with at least 6 hours in between sessions. Got it. I have just injured my triceps badly, so I am going to apply it on me in the next few weeks.

What would be a good isometric exercise for posterior tibialis tendon injury. Thanks

For me is not clear how to combine the max strength/dynamic protocol and the isometric protocol. Can I do them in one training session or separate session to gain the combined results?

From a bone fracture do you apply the same therapy start to load immediately

Perfect timing — I just strained / bruised my Achilles at CrossFit (naturally) doing loaded calf raises .. I think the rubbing at the back of my shoe bruised it. I’m taking collagen and both LMW and HMW hylauronic acid. I’m hoping to see something applicable .. I’m 67yo, trail run 4mi/day (which I can’t do right now due to Achilles tendinitis) / CrossFit and bike ride .. bike riding oddly doesn’t irritate my tendon. I hate that it’s taking so long to recover.

I also partially tore my hamstring (heard the pop, CrossFit duh) racing a 20yr old in a 100yd dash .. also pulled my glute doing heavy sled push (CrossFit) .. all these injuries after being fully warmed up. This is p****g me off.

Oh great isometric tension for Achilles tendon is calf raises with a hold at the top .. that’s exactly what caused my problem to begin with .. annoying

While Keith Baar is a fantastic researcher, I am not convinced that his explanation is the true reason for the majority of hamstring problems.

The thing is -- the hamstrings are rarely "shock-loaded", like the calves and quads are.  That is why the hamstring tendons are not as broad or thick as the Achilles or Quadriceps/Patellar tendons are.  However, in contrast to the way that the calves/quads are used during running, the hamstrings must tolerate very high-speed lengthening, and this poses challenges to the neuromuscular system (moreso than to the musculotendoninous junctions).  When athletes get tired, or have preexisting areas of muscle tissue with too high of a resting tension (an inability to relax properly), neurological "failures" occur and the muscle may reflexively spasm.  This can cause injury to neighboring fibers or areas of tissue.

This neuromuscular cause is why (i) High-load hamstring exercise is NOT that effective at preventing hamstring injuries, but (ii) Full-range-of-motion hamstring exercise IS effective.  While high-force training may make the hamstring fibers stronger, it also has the tendency to raise the resting muscle tone and potentially inhibit relaxation.  In contrast, exercising the muscle at long lengths conditions the neurological system to "accept" those lengths AND causes the muscles to physically lengthen (by adding sarcomeres).  These two effects make it easier for the muscle to tolerate high-speed lengthening without spasming in the future.

Was there really any need to bring your personal politics (at 47:xx) into this otherwise informative presentation, and degrade the duly elected president of the country and the majority of the country that voted for the new president.  I don't know what right you have to liberally degrade anyone's personal political choices and display your intolerance. Just too bad Keith Baar, I hope you can do better.