Dr. Jon Hyman

Jon Hyman, MD


Sprains and tendonitis are the most common ailments. Wrist sprains, both volar (palm side) and dorsal (back of hand side) are common with any repetiitve activity that forces the wrist backward: eg rack position of the barbell, pushups on the ground, handstand, burpees (dropping forcefully to the ground) etc.

Volar wrist strains often result in small tears in the ligaments/capsule of the wrist and lead to small bulges of fluid from the joint: ganglion cyst.

The wrist is also vulnerable to traumatic sprains when under high load. If your elbows have ever hit your knees during a heavy front squat (yes, elbows are supposed to be up, but with the heavier weights, form can break down, and the wrist is vulnerable.

Wrist wraps, whether commercially available, or hand made, can be supportive as an adjunct help, but they often get loose or slide down and need to be repositioned or retensioned to remain effective in preventing the wrist from bending back too far.

DeQuervain’s tenosynovitis:

The pain and tenderness over the radial (thumb) side of the wrist, usually from repetitive heavy gripping, hook gripping, tight bar gripping, etc. It’s an overuse injury that can occur in work, sport, or just because. Once it sets in, it can be difficult to get rid of – often requiring prolonged periods of rest from gripping, wearing a splint, taking NSAIDS or even getting a cortisone shot or two. The cortisone shot is placed along the tendon sheath, not in the tendon, or the tendon can be weakened – creating a greater chance of tendon rupture.

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Our thanks to FlexBuilding: A New Way to Move. A New Way to Live. for providing the anatomical images for this website.

Your Body & Injury


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Foot and Ankle

Achilles Injuries. Most commonly, CrossFitters will sustain overuse tendinits.


CrossFit and Plyometrics involves a fair amount of squatting and crouching. Wallballs, slam balls, olympic power lifts, eg squat cleans etc, all involve ‘dropping down low’ and getting your hip crease below knee crease.


Knees are more than just the platform that supports our stance, run and squat.


Muscle physiology is a complex science. There are fast twitch, slow twitch muscle fibers and elaborate mechanisms of enhancing strength, power, endurance speed and fatigue resistance of muscle.


There are two labra or labrums in the body. They are both at somewhat high risk in the Sports of Fitness activities which involve a lot of deep squatting and overhead lifting.


The spine is a complex anatomic masterpiece of axial structural support for our body.


Sprains and tendonitis are the most common ailments.

American Academy for Orthopaedic Surgeons American Board of Orthopaedic Surgery American Orthopaedic Society of Sports Medicine International Society for Hip Arthroscopy
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