Reinforcements on the Way: Jalen Carter’s Mid-Season Recovery Strategy

In the high-stakes push toward the 2025 postseason, the Philadelphia Eagles' defensive line recently received a different kind of reinforcement. Pro Bowl defensive tackle Jalen Carter underwent a specialized procedure on both of his shoulders to address lingering pain and a concerning loss of strength.

Rather than a season-ending surgery, Carter opted for Platelet-Rich Plasma (PRP) injections. For a player who admitted he reached a point where he "couldn't even do a push-up," this regenerative approach is a calculated move to get him back on the field for the Birds' playoff run.

What exactly is PRP?

Platelet-Rich Plasma therapy is a form of regenerative medicine that uses a patient's own blood to accelerate healing.

1. The Harvest: A small amount of the athlete's blood is drawn.

2. The Spin: The blood is placed in a centrifuge, which spins at high speeds to separate the platelets from other blood components.

3. The Injection: This concentrated "liquid gold"—rich in growth factors—is injected directly into the injured area (in Carter's case, both shoulders).

Unlike cortisone, which primarily masks inflammation and pain, PRP aims to stimulate the body's natural repair mechanisms to fix the underlying tissue damage. 

Getting the injection is only half the battle. For a defensive tackle who has to engage 300-pound offensive linemen every snap, the rehabilitation process must be aggressive yet precise. Here are three physical therapy principles that will be vital to Carter’s successful return. 

In the NFL, there is no time for true "rest." Instead, PTs utilize relative rest. While Carter may have been sidelined for a few games, he wasn't sitting still.

• The Strategy: Avoid heavy "pressing" movements (like bench press) that strain the shoulder capsule, but keep the rest of the body—core, glutes, and legs—at peak performance.

• Why it works: It prevents "detraining" while allowing the PRP to settle and start the cellular repair process without the interference of new micro-trauma.

Strength isn't just about the "mirror muscles" like the deltoids. For a defensive lineman, the shoulder's power comes from the scapula (shoulder blade).

• The Strategy: Exercises focusing on the serratus anterior and lower trapezius. This ensures that when Carter "punches" an opponent, the force is distributed across his back rather than putting all the stress on the injured joint.

• The Goal: Restoring that "lack of strength" Carter felt by building a stable foundation for the arm to move on.

After an injury, the brain often "forgets" how to properly fire muscles in a coordinated way to protect a joint.

• The Strategy: Using perturbation training (rhythmic stabilization). A therapist applies unpredictable, light pressure to Carter’s arm while he holds a position, forcing his rotator cuff to react and stabilize instantly.

• Why it matters: In the trenches, movements are chaotic. Carter needs his shoulders to react reflexively to a block before he even has time to think about it.

The Road Ahead

Carter’s return against the Buffalo Bills was an immediate success, punctuated by a massive blocked PAT and a sack. While the PRP injections provided the biological "jumpstart," it’s the meticulous physical therapy behind the scenes that allows him to translate that healing into Pro Bowl-level production.

The Eagles are betting that this "Band-Aid" (as Carter playfully called it) will hold firm through February. If his recent performance is any indication, the rest of the NFL should be on notice.

Here is an example of what we, at Ignite, would do as his physical therapists to get Jalen Carter back on the field.

Week 1: The "Protection & Activation" Phase

The first 7 days focus on protecting the injection site while keeping the surrounding muscles from "shutting down."

• Primary Goal: Minimize inflammation and begin gentle blood flow to the joint.

• Activity:

• Day 1-3: Relative rest. No upper body lifting.

• Day 4-7: Begin passive range of motion with a focus on flexion, external rotation, and abduction.  

• Core/Lower Body: Heavy focus on lower body conditioning to maintain stamina and prevent deconditioning.

Week 2: The "Isometric & Stability" Phase

Now that the platelets have begun releasing growth factors, we start "waking up" the muscles.

• Primary Goal: Re-establish neuromuscular control and scapular stability.

• Activity:

• Sub-Maximal to Maximal Isometrics: Creating a response to the muscle by focusing on sub max to max isometric activation.  This could be in the form of external rotation isometrics against the wall, dynamic band work, or manual resistance.

• Arm Bike: Low resistance to improve joint lubrication (synovial fluid movement).

Week 3: The "Dynamic Loading" Phase and Functional Phase

This is the most critical week where the athlete transitions from "patient" back to "football player."

• Primary Goal: Restoring the ability to absorb and produce force.

• Activity:

• Closed-Chain Stability: High-plank holds or "walks" on a Bosu ball. Since the hand is fixed on the ground, the shoulder joint is more stable.

• Heavy Resistance Band Training: Moving the shoulder through its full range of motion against moderate to heavy resistance will allow for improved tolerance against the stresses of the game.

• Perturbation Training: Create a dynamic response to external contact to the arm.  This is similar to countermovement's performed by offensive lineman in both the run and pass game.

• Pass Rush and Defending the Run Drills: Focusing on pass rush drills and defending the run will allow us to know that he is ready to take on real challenges in the game.

The game of football can be tough on the body, but with the right physical therapists in your corner, your return to the game isn't a matter of if, its when. Let Ignite Physical Therapy help you get your game back!