Blood Flow Restriction Therapy and Arm Care: A Powerful Tool for Baseball Players
By Dr. Carmen Jansante, PT, DPT, CSCS Undefeated Physical Therapy & Performance — Pittsburgh, PA
For baseball players, especially pitchers, building strength is important—but how we build that strength matters.
The throwing arm experiences a tremendous amount of stress throughout a baseball season. The shoulder, elbow, forearm, and surrounding muscles have to repeatedly produce and absorb high forces. Because of that, there are times when adding more weight isn’t necessarily the best way to create a training stimulus.
This is where blood flow restriction therapy (BFR) can be a valuable tool.
At Undefeated Physical Therapy & Performance in Pittsburgh, we use BFR as one part of a comprehensive baseball-specific rehabilitation and performance program. It allows us to challenge the muscles with relatively light loads while still creating a meaningful training stimulus.
What Is Blood Flow Restriction Therapy?
Blood flow restriction training uses a specialized pneumatic cuff placed around the upper arm or leg. The cuff partially restricts blood flow during exercise.
At Undefeated, we use an automated SmartCuffs system that allows us to determine an individual’s limb occlusion pressure (LOP) and then prescribe the appropriate percentage of that pressure for training.
This individualized approach is important because there is no single pressure that is appropriate for every athlete. Limb size, blood pressure, cuff characteristics, and other factors can influence the amount of pressure needed to achieve a specific level of restriction. Current guidelines generally recommend prescribing BFR relative to an individual’s measured limb occlusion pressure rather than simply using the same pressure for everyone. (Australian Sports Commission)
Once the appropriate pressure is established, an athlete can perform resistance exercises using a relatively light load.
That is what makes BFR so interesting for baseball players.
How Does BFR Work?
Traditional strength training generally requires relatively high mechanical loads to stimulate strength and muscle growth.
BFR changes the equation.
With BFR, we can use a low external load while creating a significant physiological stimulus. The partial restriction of blood flow changes the environment within the working muscle, increasing metabolic stress and recruiting additional muscle fibers as the exercise progresses toward fatigue.
In simple terms, BFR can make a light exercise feel much more challenging to the muscle than the amount of weight would suggest.
Research has demonstrated that low-load BFR can produce meaningful improvements in muscle strength and hypertrophy, and recent research specifically examining the upper extremity found that low-load BFR produced greater improvements in upper-extremity strength and hypertrophy than low-load training without BFR. (PubMed)
Importantly, BFR does not mean that light weights are always better than heavy weights.
Traditional high-load strength training remains an extremely important part of developing a strong athlete.
Instead, BFR gives us another option when high mechanical loading isn’t appropriate, isn’t practical, or simply isn’t necessary for that particular training session.
Why Is BFR So Useful for Baseball Arm Care?
This is where BFR becomes especially interesting for baseball players.
Think about everything a pitcher’s arm has to handle.
A pitcher may throw hundreds of pitches over the course of a week between games, bullpens, practices, warm-ups, long toss, and other throwing activities. The goal of an arm-care program isn’t simply to make the muscles stronger.
We also have to consider the total stress being placed on the athlete.
Sometimes the athlete needs more training stimulus—but doesn’t need more heavy external loading.
BFR gives us an opportunity to create that stimulus while keeping the external load relatively low.
1. Build Strength Without Adding Excessive Mechanical Load
One of the biggest advantages of BFR is the ability to train with relatively light resistance.
This can be particularly useful:
During rehabilitation
During a return-to-throw program
After throwing
During high-volume throwing periods
When an athlete is experiencing increased soreness or fatigue
When heavy loading isn’t appropriate
When we want additional training volume without substantially increasing external load
For a baseball player, that can be a big advantage.
The goal isn’t always to make the arm work harder mechanically.
Sometimes we want to make the muscle work harder without making the joint and surrounding tissues handle unnecessary additional load.
2. Research in Division I Baseball Pitchers
One of the most interesting studies looking specifically at BFR and baseball involved 28 Division I collegiate baseball pitchers.
The pitchers completed an eight-week rotator cuff training program twice per week. The BFR group performed low-load exercises for the throwing arm while using BFR, including internal rotation, external rotation, scaption, and side-lying external rotation.
The BFR group demonstrated greater increases in shoulder-region lean mass compared with the non-BFR group. They also demonstrated a significant improvement in isometric internal rotation strength at 90 degrees and a greater increase in achievable workload during scaption. (PubMed)
That study is particularly relevant because these weren’t simply recreational gym-goers.
They were collegiate baseball pitchers performing a baseball-specific shoulder program.
The findings don’t mean BFR prevents injuries or that every pitcher needs BFR. But they do provide evidence that BFR can be a useful addition to a strength and arm-care program for throwing athletes.
3. BFR Can Be Used for More Than Just the Rotator Cuff
When people hear “arm care,” they often immediately think about the rotator cuff.
The rotator cuff is obviously important, but a complete baseball arm-care program involves much more.
BFR can potentially be incorporated into exercises targeting:
Shoulder
Internal rotation
External rotation
Scaption
Shoulder elevation
Deltoid work
Scapular musculature
Scapular control exercises
Low-load rowing variations
Serratus-focused exercises
Upper arm
Biceps
Triceps
Forearm
Wrist flexors
Wrist extensors
Pronation
Supination
Grip and forearm endurance
This is particularly interesting for pitchers because the forearm and elbow musculature play an important role in managing the demands placed on the throwing arm.
The goal isn’t to randomly put a cuff on and perform hundreds of repetitions.
The goal is to strategically use BFR within an individualized program.
4. A Great Option When an Athlete Is Already Carrying a High Throwing Load
This may be one of the biggest practical advantages of BFR for baseball players.
Imagine a pitcher who has already thrown a bullpen.
We may still want to train the rotator cuff, scapular muscles, and forearm.
But adding heavy external resistance immediately after a high-stress throwing session may not be the best choice.
Instead, we can use low-load exercises with BFR to create a meaningful muscular stimulus while keeping the external resistance relatively low.
This can help us accumulate training volume without simply continuing to pile more mechanical stress onto an already heavily loaded throwing arm.
The same concept can apply during a return-to-throw program.
As throwing volume gradually increases, strength training has to be managed alongside that throwing workload.
BFR gives us another way to manipulate training stress.
5. BFR May Help Us Get More Out of Low-Load Training
A 2025 systematic review and meta-analysis examined 11 studies involving 220 participants and specifically looked at BFR training for the upper extremity.
The researchers found that low-load BFR produced greater improvements in upper-extremity strength and hypertrophy than low-load resistance training alone. The evidence comparing BFR with traditional high-load training was more mixed, which reinforces the idea that BFR should be viewed as a tool rather than a replacement for traditional strength training. (PubMed)
That distinction is important.
At Undefeated, we don’t use BFR because we think baseball players shouldn’t lift heavy.
Baseball players absolutely need to get strong.
We use BFR because sometimes we want to create a significant training stimulus without adding unnecessary external load.
That’s a very different concept.
BFR and the “Big Bang for Your Buck”
For baseball players, I think this is one of the most exciting applications of BFR.
You can have an athlete who has already accumulated significant stress from throwing, lifting, practice, or competition.
We don’t necessarily need to completely shut down training.
We also don’t necessarily need to add another heavy workout.
Instead, we can strategically use BFR to create a meaningful stimulus with lighter resistance.
That can make BFR particularly useful for:
Arm-care programs
Rotator cuff strengthening
Scapular strengthening
Forearm strengthening
Return-to-throw programs
Post-throw training
Rehabilitation
In-season maintenance
Athletes who cannot tolerate heavier loading
Is BFR Better Than Traditional Strength Training?
No—and that’s not the point.
Traditional resistance training remains one of the foundations of developing strength and athletic performance.
BFR is better thought of as another tool in the toolbox.
If an athlete can safely and appropriately perform traditional strength training, we should continue to use it.
But there are situations where heavy loading isn’t appropriate.
In those situations, doing nothing isn’t necessarily our only alternative.
BFR allows us to bridge that gap.
Heavy training when appropriate. BFR when appropriate. The right tool for the athlete, the phase of training, and the goal.
Can BFR Be Used Before or After Throwing?
Potentially, yes.
BFR can be incorporated into different parts of a baseball player’s training program depending on the athlete and the goal.
For example, we may use low-load BFR exercises as part of an arm-care or pre-throw routine to prepare specific muscles for training.
It may also be used after throwing or during certain phases of rehabilitation when we want to create additional muscular stimulus without adding a large amount of external resistance.
The exact exercises, pressure, volume, and timing should be individualized rather than treating BFR as a one-size-fits-all protocol.
BFR Isn’t Magic
This is probably the most important point of the entire article.
BFR is not a magic fix.
It doesn’t replace a well-designed throwing program.
It doesn’t replace strength training.
It doesn’t replace good sleep, nutrition, workload management, recovery, or proper rehabilitation.
And simply putting a cuff on your arm doesn’t automatically make an exercise effective.
The pressure, load, exercise selection, volume, timing, and athlete all matter.
BFR also isn’t appropriate for everyone. Proper screening and individualized pressure prescription are important, and athletes with certain vascular, cardiovascular, clotting, or other medical considerations may require additional evaluation or may not be appropriate candidates. (PubMed Central (PMC))
That’s why BFR should be administered by a qualified professional who understands both the technology and the athlete’s specific needs.
The Bottom Line for Baseball Players
Baseball players don’t need more stress simply for the sake of doing more.
They need the right amount of stress at the right time.
Blood flow restriction therapy gives us another way to create a meaningful muscular training stimulus while using relatively light external loads.
For a throwing athlete, that can be extremely valuable.
Whether we’re working on rotator cuff strength, scapular control, forearm strength, rehabilitation, or maintaining strength during a demanding throwing schedule, BFR can be strategically incorporated into a comprehensive baseball-specific program.
At Undefeated Physical Therapy & Performance in Pittsburgh, PA, we use evidence-based tools like BFR alongside strength testing, throwing workload management, mobility work, manual therapy, and individualized baseball rehabilitation programs.
Our goal isn’t simply to get athletes out of pain.
Our goal is to help baseball players build a stronger, more resilient body so they can keep playing the sport they love.
If you’re a baseball player in Pittsburgh dealing with arm pain, returning from an injury, or looking for a more individualized approach to baseball performance and arm care, contact Undefeated Physical Therapy & Performance to learn how a baseball-specific physical therapy and performance program can help.
Undefeated Physical Therapy & Performance Pittsburgh, PA Baseball-Specific Physical Therapy & Performance undefeatedpt.com
(412) 627-2131
References
Lambert BS, McCulloch PC, Goble H, et al. Rotator cuff training with upper extremity blood flow restriction produces favorable adaptations in Division IA collegiate pitchers: a randomized trial. Journal of Shoulder and Elbow Surgery. 2023;32(6):e279-e292. doi:10.1016/j.jse.2023.02.116. (PubMed)
Jing J, Zheng Q, Dong H, et al. Effects of upper extremity blood flow restriction training on muscle strength and hypertrophy: a systematic review and meta-analysis. Frontiers in Physiology. 2025;15:1488305. doi:10.3389/fphys.2024.1488305. (PubMed)
Patterson SD, Hughes L, Warmington S, et al. Blood Flow Restriction Exercise: Considerations of Methodology, Application, and Safety. Frontiers in Physiology. 2019;10:533. (PubMed Central (PMC))
Clarkson MJ, May AK, Warmington SA. Is there rationale for the cuff pressures prescribed for blood flow restriction exercise? A systematic review. Scandinavian Journal of Medicine & Science in Sports. 2020;30(8):1318-1336. doi:10.1111/sms.13676. (PubMed)
Australian Institute of Sport. Blood Flow Restriction Training Guidelines. Updated guidance on individualized arterial occlusion pressure, training loads, safety, and application. (Australian Sports Commission)
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