Arm Care 101: What Every Youth Baseball Parent Needs to Know

Tommy John surgery rates in players under 17 have increased dramatically over the past two decades. The good news: almost all of it is preventable.

No topic makes us more serious as coaches than arm health. Because the data is alarming, the causes are largely preventable, and the consequences — in worst cases — can end a young pitcher's career before it starts.

This post covers the core of what we teach in our program and what we share with every parent at the start of the season.

The Injury Numbers Parents Need to Hear

Research shows a 5-to-7 fold increase in youth baseball arm injury rates beginning around 2000. Approximately 34% of Tommy John surgeries from 2010-2022 were performed on players 17 years old and younger. Studies show when a young player throws while fatigued, the risk of injuring their throwing shoulder or elbow increases by as much as 36 times.

These aren't scare tactics. They're the baseline reality of modern youth baseball — and they're largely the result of year-round play, too many games on back-to-back days, and pitch counts that coaches ignore or don't know.

Pitch Count Rules for 11-12 Year Olds

Here are the guidelines governing our program:

Organization	Max Pitches/Game	Key Rest Rules
Little League	85	21-35 pitches = 1 day rest; 36-50 = 2 days; 51-65 = 3 days; 66+ = 4 days
USA Baseball / Pitch Smart	75	Similar graduated rest scale
ASMI (Sports Medicine)	68	No overhead throwing 2-3 months/year

We follow and enforce these. Not because a league requires it — because the science requires it.

The Bank Account Analogy

Tom House, widely regarded as the father of modern pitching biomechanics, frames arm health as a bank account: you must make deposits before you make withdrawals.

Deposits are the things we do to build arm resilience: proper warm-up, arm care exercises, long toss on flat ground, rest, sleep, and good nutrition. Withdrawals are the competitive demands we place on the arm: bullpen sessions, game pitching, back-to-back appearances.

Many youth arms are constantly overdrawn. They pitch multiple games a weekend, skip the warm-up because there isn't time, then go home and do it again next weekend. The deficit compounds. That's when elbows blow out.

What Good Arm Care Looks Like in Practice

For our 12U players, arm care is a daily commitment, not a pre-game checkbox:

•        Warm up to throw — never throw to warm up. Light movement first, always.

•        PlyoCare balls (not heavy weighted baseballs — those are for 14+) for warm-up and arm care work

•        Flat-ground throwing far more than mound work — mound effort creates approximately 6x body weight of force vs. 4x on flat ground

•        3-4 months away from baseball per year — the arm needs rest it cannot get any other way

The Warning Signs We Take Seriously

If your son mentions any of the following, we stop throwing immediately and recommend evaluation:

•        Pain in the elbow or shoulder during or after throwing

•        Decreased velocity or accuracy that isn't explained by mechanics

•        Numbness or tingling in the throwing arm

•        Persistent soreness more than 24 hours after pitching

Pain is not character. Pain is a signal. We never teach kids to push through arm pain.

The best ability is availability. An arm that lasts is worth infinitely more than an arm that burns bright for two seasons then disappears.

Next up — Post 6: Sleep is a Performance Tool (And Most of Our Kids Aren't Getting Enough)