Deep Dive
3 Exercises I Use to Reduce Knee Pain in CrossFitters
Knee pain is one of the most common complaints you experience as a CrossFitter.
It often shows up during squats, lunges, jumps, and running, especially as training volume or intensity increases.
These movements place repeated demands on the knee through deep flexion, rapid force production, and impact with the ground.
Over time, discomfort can appear even when your technique feels solid.
A common misconception is that knee pain means you have bad knees or that you need to stop training these movements altogether.
In most cases, knee pain reflects how your body is managing load rather than structural damage.
The knee is influenced heavily by how much force your quadriceps can produce, how well your hips move, and how much motion you have at your ankles.
This week’s newsletter explains why those factors matter and introduces three exercises that directly address them to help you train with less knee pain.
Why Strong Quads, Mobile Hips, and Mobile Ankles Matter for Knee Pain
Your knee functions primarily as a joint that transfers force between your hip and your ankle.
It bends and straightens to allow movement, but it relies on surrounding joints and muscles to manage load efficiently.
When force is not well distributed, stress accumulates at the knee during repetitive training.
Limited hip motion can increase knee stress during squatting, lunging, and running.
If your hips lack rotation or flexion, your knee often compensates by absorbing more force to achieve the required depth or stride length.
Over time, this can lead to irritation during common CrossFit movements.
Restricted ankle dorsiflexion also changes how your knee moves.
When your ankle cannot travel forward smoothly, your knee may shift inward or forward excessively in deep squats and jump landings.
This alters joint loading and reduces your ability to control force during impact.
Your quadriceps play a major role in knee health by controlling knee flexion and producing force during wall balls, box jumps, running, and Olympic lifts.
Strong quads improve your ability to absorb load and generate power through the knee.
The following exercises are a few that I routinely program to directly target quadriceps strength, hip mobility, and ankle dorsiflexion for my clients that transfer well to CrossFit training.
Exercise 1: Spanish Squat
Watch a demo here
The Spanish squat is a squat variation performed with a strap or resistance band anchored behind your knees.
As you sit back and down, the band provides backward support while allowing you to maintain an upright torso.
Unlike traditional squatting, this setup reduces forward knee translation demands while keeping the knee in a flexed position.
You stay tall, controlled, and balanced through the movement.
How It Loads the Quadriceps
The band assistance allows you to apply force through knee extension without excessive joint compression or shear.
For many CrossFitters, this creates a strong quad stimulus without triggering sharp knee symptoms during the movement.
Why Sustained Quad Tension Matters
Sustained quadriceps activation improves your ability to control knee flexion during squats and lunges.
Better control improves how force is absorbed and redistributed when you descend under load.
Over time, this increases tolerance to knee bend during training movements that previously caused discomfort.
When to Use the Spanish Squat
You can use the Spanish squat during warm-ups to prepare your knees for training, as accessory work to build quad capacity, or on pain-modulated days when symptoms are present.
The intent is to strengthen your quadriceps while continuing to train knee flexion rather than avoiding it.
Exercise 2: 90/90 Hip Rotations
Watch a demo video here
How Hip Rotation Affects the Knee
Hip internal and external rotation influence how your femur moves relative to your knee.
When hip rotation is limited, your knee often absorbs additional stress to complete squats and lunges.
This can affect alignment and load distribution through the joint during repetitive training.
Why Limited Hip Motion Shifts Stress to the Knee
During squatting and lunging, your hips need rotation to allow for depth.
If that motion is unavailable, your knee compensates by moving into positions that increase forces on the knee.
Over time, this compensation can contribute to knee irritation during common CrossFit movements.
Why the 90/90 Position Is Effective
The 90/90 hip rotation exercise places your hips in positions that reflect real movement demands.
You actively move through internal and external rotation rather than holding passive stretches.
This improves usable hip motion that transfers directly into training.
How This Supports Knee Health
Improved hip rotation supports better squat depth, smoother lunges, and more efficient running mechanics.
By improving motion upstream, your knee experiences more controlled loading during training movements.
Exercise 3: Banded Ankle Dorsiflexion
Watch a demo video here
Why Ankle Dorsiflexion Matters
Ankle dorsiflexion allows your knee to travel forward during squatting, jumping, and running.
Adequate motion at the ankle supports proper knee tracking and stable positions under load.
How Ankle Stiffness Affects the Knee
When your ankle is stiff, your knee often compensates during deep squats and jump landings.
This can increase stress on the knee joint when force is applied quickly or repeatedly.
How Banded Dorsiflexion Improves Mechanics
Banded ankle dorsiflexion uses external resistance to guide joint motion.
This approach improves how the ankle moves within the joint rather than focusing solely on calf length.
Better joint mechanics lead to smoother force transfer through the knee.
Where This Fits in Training
You can include banded ankle dorsiflexion in warm-ups, between strength sets, or after training.
Consistent exposure supports better knee tracking during deep knee flexion.
How to Implement These Exercises Into CrossFit Training
These exercises work best when performed consistently three to five days per week.
You can integrate them into warm-ups, accessory work, or lower intensity training days based on your schedule.
Progress comes from repeated exposure and improved tolerance over time.
The goal is to expand your movement options so your knees can handle squats, lunges, jumps, and running with greater movement capacity and less discomfort.
Wrapping Up
Reducing knee pain does not require avoiding squats, lunges, jumps, or running.
Your knees adapt when load is applied with appropriate strength and movement capacity.
Quadriceps strength, hip mobility, and ankle mobility work together to distribute force efficiently during training.
When each area is addressed, your knees tolerate higher demands with greater control.
Train toward increasing capacity rather than stepping away from challenging movements.
Consistent, targeted work builds confidence in your knees and supports long-term performance without turning training into a cycle of flare-ups.
