Strength in Numbers #187
A well-balanced body is crucial in baseball for optimizing performance and preventing injuries. While most training programs focus heavily on the dominant throwing arm, research shows that training the non-dominant (glove-side) arm can significantly enhance throwing power and durability.
This is due to a phenomenon called cross-education, where strength gains in one limb can transfer to the untrained limb.
Read more about this phenomenon and get access to the Cross-Education Section from our new ArmCare Specialist Course! You don’t want to miss this!
The Science Behind Single-Arm Training
Single-arm, or unilateral training, has been widely studied in sports science for its ability to enhance overall strength, coordination, and neuromuscular control. Unlike bilateral training (using both arms simultaneously), unilateral exercises create greater neurological demand, increasing muscle activation and promoting better motor control.
Studies have found that training one arm can lead to up to 22% strength improvement in the untrained arm due to neural adaptations.
For baseball players, focusing on strengthening the glove-side arm can indirectly improve the throwing arm’s stability, endurance, and power while it rests. Wild, right? By developing a stronger and more stable glove side, pitchers and position players can generate better rotational force, improve core stability, and even reduce stress on the throwing arm.
Doing arm care every day for the throwing arm is entirely unnecessary. If you are not monitoring fatigue and recoverability of the throwing arm’s muscles, you are training athletes into injury.
Cross-Education Training and Injury Recovery
The concept of cross-education plays a critical role in rehabilitation and injury prevention. Stop shutting down athletes from training after injury when you can train the heck out of their glove arm.
Research by Dr. Farthing from the University of Saskatchewan has shown that training a healthy limb can help preserve strength and prevent muscle atrophy in an injured limb².
This is particularly important for pitchers and position players recovering from elbow or shoulder injuries, as maintaining strength in the non-affected side can accelerate the rehabilitation process.
Additionally, cross-education training has been proven to improve motor control and coordination, which is essential when reintroducing throwing mechanics post-injury.
Athletes who utilize unilateral training experience quicker recovery times and retain more muscle mass compared to those who only train their injured side.
This video from our new Certified ArmCare Specialist Course shows different stances associated with unilateral training in long lever – these are important training concepts to fire muscles on all cylinders and strengthen one side of the body to the other.
Practical Applications for Baseball Players
Incorporating unilateral strength training into a baseball player’s routine can lead to significant performance benefits. Here are a few exercises that maximize the cross-education effect and strengthen both arms:
• Single-Arm Dumbbell Press – Enhances shoulder stability and promotes neural activation in the opposite arm.
• Glove-Side Rotational Rows – Strengthens the back and oblique muscles, which are critical for generating rotational power—not to mention a stronger front side.
• Single-Arm Landmine Press – Improves shoulder mobility, core control, and overhead strength in a predictable arc of motion to apply force.
• Unilateral Carries – Strengthens grip, core stability, and shoulder endurance for better throwing durability by improving motor control of the shoulder column and ribcage.
• Glove-Side Isometric Holds – Helps maintain strength in an injured throwing arm by activating neuromuscular pathways.
Another great nugget from our Certified ArmCare Specialist Course. Perform this exercise with light weight—you will be amazed at how hard it is! This move trains the biceps as a shoulder stabilizer with expansion.
Closing Thoughts
Training one arm benefits both. Baseball players who prioritize unilateral training gain a competitive edge in strength, power, and injury resilience.
By understanding and applying cross-education training, athletes can build a stronger, healthier throwing arm while reducing the risk of overuse injuries.
A well-rounded training approach ensures long-term success and durability on the field. We are fighting our biggest enemy—injury—both on and off the field.
Spring Training is around the corner! If you want to be Dual Certified and join our ArmCare Elite Crew – now is the time!
Strength Matters Most,
Ryan
Ryan@armcare.com
