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Six Minutes Between Innings: What a College Pitching Study Found About EMS Recovery

Picture a pitcher walking off the mound.
His arm has just thrown another hard fastball.
He has only a few minutes before the next inning starts.
Coaches want him fresh.
He wants his arm to feel ready again.

A team of sports scientists put that moment to the test.

They published their work in the Journal of Strength and Conditioning Research.
That journal is produced by the National Strength and Conditioning Association in the United States.
The researchers came from university physical therapy and kinesiology departments.
They studied 21 Division I college baseball pitchers.

The pitchers were young, trained athletes.
Their average age was 20.4 years.
They averaged 185.9 cm tall and 86.5 kg.
Body fat averaged 11.2 percent.
Eight were starters.
Thirteen were relief pitchers.

Each man pitched three simulated five-inning games.
There were four days of rest between games.
Each game asked for up to 70 fastballs.
Every pitch had to be at least 95 percent of his best fastball speed.
That kept effort high and honest.

After every inning came six minutes of recovery.
The three methods were rotated so order would not skew the results.

One method was passive recovery.
The pitcher simply sat.
The second was active recovery.
He pedaled an upper-body bike at a falling workload.
The third was electrical muscle stimulation, or EMS.
Pads sat on the throwing arm.
They covered the forearm, biceps, triceps, deltoid, and upper trapezius.
The unit used a gentle, falling pulse rate over six minutes.

The team measured more than how the pitchers felt.

They tracked shoulder and elbow range of motion before pitching, after pitching, and 24 hours later.
They recorded heart rate after every pitch and every 30 seconds in recovery.
They asked for a rating of perceived exertion after the last pitch and after recovery.
They took fingertip blood samples.
Those samples showed blood lactate right after pitching and again after the six-minute break.

Range of motion did not change in a special way with any one method.
External rotation rose a little after pitching, then settled by the next day.
The recovery choice did not drive that pattern.

Heart rate fell in all three conditions.
Sitting brought it down the most.
EMS brought it down in a similar way to sitting.
The bike kept heart rate a little higher.

How hard the work felt told a clearer story.
After pitching, effort scores sat near 3 on a 0-to-10 scale.
After sitting, the score dropped to about 1.5.
After EMS, it dropped to about 1.3.
After the bike, it stayed higher, near 2.4.

The blood numbers were the sharpest finding.

Mean blood lactate after pitching sat near 3.2 to 3.9 mmol per litre, depending on the day.
After six minutes of sitting, it barely moved.
It went from 3.22 to 3.35.
After the bike, it rose.
It went from 3.86 to 4.55.
After EMS, it fell.
It went from 3.85 to 2.01.

That drop with EMS was statistically clear.
The other two methods did not show the same fall.

When the pitchers ranked the three options, the result was almost unanimous.
Eighteen of 21 said EMS felt like the best recovery.
Sitting came second.
The bike came last.

Pitch speed held through all five innings.
In this setup, lactate never climbed high enough to wreck velocity.
The scientists said that out loud.
They also said the picture might change if a pitcher threw more than 14 pitches an inning.
It might change if total pitch counts rose.
It might change if lactate climbed higher than it did here.

That is the honest limit of the study.
It was a controlled, simulated game.
It was not a full championship series.
It still gives a clean signal.

EMS on the throwing arm helped clear blood lactate in six minutes.
It let heart rate settle.
It lowered how hard the work felt.
Pitchers preferred it.

Baseball is stop-start work.
Hard effort.
Short rest.
Then hard effort again.
Other sports share that rhythm.
Think tennis serves.
Think cricket spells.
Think swimming relays.
Think any throwing or striking sport with brief breaks.

The same logic may help other trained athletes who need a short reset.
It may help people who want recovery without extra cardio strain.
This paper does not prove that for every sport.
It does show a measured benefit in one demanding throwing group.

The work was peer reviewed.
It used repeated measures on the same athletes.
It used standard tools for heart rate, perceived exertion, motion, and blood lactate.
It named its limits.
That is how serious sports science is supposed to look.

EMS is not magic.
It is a recovery tool with a simple job in this study.
Help the arm settle between innings.
Help lactate fall.
Help the pitcher feel ready for the next set of throws.

For coaches and athletes who live in short windows of rest, that finding is worth knowing.

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More  EMS   Research Scientists Are Studying

1. Can  EMS   reduce fat? 

2. Can   EMS  increase calorie burn while sitting?

3. Can   EMS  support muscle toning and muscle gains?

4. Can   EMS   improve athletic  training?

5. Can   EMS   play a role in muscle loss & frailty?

6. Can   EMS  reduce pain? 

7.   EMS   vs TENS: What are the differences?

8. Can  EMS  play a role after stroke?

Research Summary

 

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