Knee Valgus, Ankle Asymmetry, and a Powerlifting Deadline
Priya, 27, plays recreational volleyball twice weekly and wants to improve her squat for a charity powerlifting meet in 10 weeks. During a goblet squat with 16 kg, her knees drift inward past the first 30 degrees of flexion and stay medial to the second toe at the bottom. Her heels stay down, depth reaches mid-thigh, and her trunk stays upright. Her right foot pronates and the right arch flattens at the bottom. Single-leg squat on the right shows knee valgus and about a 10-degree contralateral pelvic drop; the left shows only mild valgus. Half-kneeling ankle dorsiflexion is 8 cm on the right and 12 cm on the left. Manual hip abduction testing is 4/5 on the right and 5/5 on the left. She reports no pain but says her right knee "collapses" during volleyball serves and she is worried about injury.
1. Analyze the technique faults and their likely contributors, and identify what you would prioritize first.
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The fault is not simply "knees out." The asymmetry points to a right-sided control and mobility problem.
Contributors to consider:
- Right ankle dorsiflexion restriction: 8 cm versus 12 cm is a meaningful difference. Limited dorsiflexion can drive foot pronation and change knee tracking.
- Right hip abductor weakness: 4/5 versus 5/5, combined with contralateral pelvic drop on the single-leg squat, supports a frontal-plane control deficit.
- Foot pronation: The flattening arch is likely both a cause and a consequence of the ankle and hip limitations.
- Motor control: The knee collapse during volleyball suggests she does not automatically maintain alignment under speed and load.
Priority: I would prioritize right ankle mobility and right hip abductor and external rotator strength, then recheck the squat. Loading a squat pattern while the knee collapses reinforces the strategy she is trying to change.
I would not diagnose a ligament or meniscus issue because she has no pain. However, if pain appears or the knee gives way unpredictably, I would refer for assessment.
2. What cues and exercise modifications would you use in the next session?
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I would choose a small number of external cues and pair them with a regression that makes success likely.
Cues:
- "Spread the floor" or "screw your feet into the ground" to encourage foot stability and external rotation at the hip.
- "Keep the kneecap tracking over the second toe" only if she responds well; otherwise use a mirror or a band for feedback.
- "Reach the floor apart" during the descent.
Modifications:
- Reduce load to a 12 kg goblet squat or bodyweight box squat to a target depth she can control.
- Place a light band around the knees and cue gentle outward pressure.
- Elevate the heels slightly if ankle dorsiflexion is limiting the pattern.
- Add lateral band walks, side-lying hip abduction, and split-stance work on the right.
- Practice single-leg balance with a neutral arch.
Reasoning: The band gives tactile feedback, the box limits depth so she can succeed, and the heel elevation reduces the ankle constraint. I would film one set from the front and one from the side so she can see the change. I would avoid giving five cues at once, because that usually produces freezing rather than learning.
3. How would you decide when to add load and progress her toward the meet?
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I would use performance criteria rather than the calendar alone.
Criteria for adding load:
- Knees remain over the second toe through the full range for all prescribed reps at the current load.
- No contralateral pelvic drop on the right single-leg squat.
- Right ankle dorsiflexion improves toward 11–12 cm.
- She can complete three sets of eight controlled reps with no increase in valgus at the bottom.
- No knee pain or giving-way during volleyball.
Progression plan:
- Weeks 1–2: technique work at 12–16 kg, banded squats, and unilateral hip work.
- Weeks 3–5: add load in small increments when the criteria are met, and keep one technique day per week.
- Weeks 6–8: move to a moderately heavy squat with a spotter, while maintaining the ankle and hip accessory work.
- Weeks 9–10: reduce accessory volume and rehearse meet attempts at a load she can control.
The reasoning is that load is a privilege earned by alignment and control, not a reward for completing a week. If the valgus returns at a heavier load, I would drop back and rebuild rather than push toward a number.