Unlocking the Perfect Squat: The Role of Ankle and Hip Range of Motion

by | Oct 12, 2024 | Ankle, Hip, Squat

If you’re looking to maximize your squat performance, understanding the significance of ankle and hip range of motion is crucial.

We read a number of papers dating back to 2015 and they all had two common findings that related to squatting ability:

  • An ankle dorsiflexion range of motion of >12cm on the knee-to-wall test
  • Hip Flexion range of motion of >125˚

Numerous studies have highlighted these two aspects as the best predictors of achieving a deep squat. Notably, research from 2015 (Kim et al), 2020 (Endo at al)  and 2022 (Gomes et al) emphasized that sufficient mobility in these joints is essential for effective squatting.

Let’s dive deeper into each component, how to test your mobility, and strategies to improve it!

Ankle Range of Motion

How Much Flexibility Do I Need and How Do I Test It?

When it comes to ankle mobility, specifically dorsiflexion, research indicates that you need a minimum of 12 cm on the knee-to-wall test to perform a full squat effectively. A 2015 paper in the Journal of Human Kinetics assessed 101 individuals To assess your ankle range of motion, the knee-to-wall test is a popular and straightforward method. Here’s how it works:

  1. Stand facing a wall and place your foot about 12 cm away from it.
  2. Keeping your heel on the ground, bend your knee and try to touch it to the wall.
  3. Measure the distance from your toes to the wall—this will help you determine your dorsiflexion.
Ankle dorsiflexion knee to wall measure for squat

How to Treat and Manage Stiff Ankles

If your ankle mobility isn’t up to par, the next steps depend on the source of the restriction. Generally, if the limitation is felt at the front of the ankle, it may be due to joint-related issues.

  • Banded Ankle Mobilizations: This technique involves using a resistance band tied to a stable surface while performing ankle flexing exercises on a step. Check out this quick helpful video for guidance.

Conversely, if the tightness is located in the back of your ankle around the Achilles tendon region, consider:

  • Contract/Relax Stretches: A simple exercise like the bent-knee calf raise can effectively relieve restrictions in this region.

Lastly, for an immediate solution, consider using a wedge or support under your heels during a squat. Two papers from The Journal of Strength and Conditioning Research have shown that wedges can enhance squat depth without negatively impacting biomechanics. While some may see this as a “cheat,” the science supports it. If you struggle to achieve that 12 cm in the knee-to-wall test and find it challenging to squat low, use that wedge!

Hip Range of Motion

How Much Flexibility Do I Need and How Do I Test It?

For effective squatting, studies have determined that achieving 125 degrees of hip flexion is necessary—this is 35 degrees beyond a right angle. To test your hip mobility, you can use an inclinometer available on your iPhone. Simply follow these steps:

  1. Lie down on your back with your legs extended.
  2. Place the inclinometer length-ways on your thigh,
  3. Gently lift your knee towards your chest to measure the maximum angle, without moving the opposite leg.

     

    measuring hip flexion

    How to Treat and Manage Stiff Hips

    The hip joint is mostly passive during a squat, so if you’re experiencing limitations, it’s most likely due to an issue with the hip joint itself. There is up to 20% of the population that may be limited by the shape of their hip joint and the way it developed during childhood and adolescence. If that is the case, it makes if very difficult to improve the range of motion. Things like acetabular retroversion or a lower femoral head/neck offset ratio cannot be changed.

    For the rest of the population, here are some effective strategies for improving hip mobility:

    • Banded Hip Mobilisations: These exercises can help increase the range of motion in your hips by stretching and mobilizing the joint. Look for a demonstration in this video.
    • Inner Range Hip Flexor Strengthening: Strengthening your hip flexors can counteract tightness and enhance your ability to squat lower.
    • Like with ankle mobility, adding a heel wedge can help. By elevating your heels, you may experience a reduction in trunk forward bend, minimizing the hip flexion required and facilitating a more comfortable squat position.

    Conclusion

    Mastering a deep squat requires more than just strength; it hinges on sufficient ankle and hip range of motion. The studies from 2015 and 2022 have made it clear: flexibility in these joints is paramount for optimal performance.

    By regularly assessing your mobility and implementing these targeted exercises and techniques, you can improve your squat depth, enhance your overall strength training, and reduce the risk of injury. Remember, every body is unique, so listen to yours and adjust your approach accordingly. Happy squatting!