Ben Brewster@TreadAthletics
A couple of other anecdotal connections I could talk about in future posts if there's interest.
1. Pronator soreness > linked to high breaking ball usage, as the longer time in supination puts more stretch (eccentric loading) through the tissue.
2. Nerve issues > often involve a head yank and arm drag (which may tension ulnar, median, or musculocutaneous nerves).
3. Lat/lead oblique > linked to higher slot, higher carry, lateral tilt pitchers. The front oblique is put through more stretch in the frontal plane, and the lat is more involved in the shoulder extension of this final "pull down" into release.
So what is the best place to be sore?
-Slight soreness shared through the entire chain (vs concentrated to one area) is generally best.
-Slight lat soreness
-Slight posterior shoulder soreness
-Slight flexor pronator soreness in the muscle belly
-Slight bicep soreness
Soreness should be gone before the next high-intent throwing day.