Deadlift Sticking Point in a Long-Femur Powerlifter
Mr. L., 29, is an 82-kg powerlifter with a 180-kg conventional deadlift and a 140-kg squat. He wants to compete in 10 weeks but has missed 165 kg just below the knee three times. Video shows the bar starting about 3 cm anterior to midfoot, his hips rising before the bar leaves the floor, and the bar drifting forward at knee height. His femur is 48 cm, tibia 42 cm, and arm length 68 cm; he has a long torso. His sumo best is 150 kg with limited practice. He reports no pain, trains four days/week, and currently does heavy deadlifts twice weekly. He sleeps 6.5 hours and works 55 hours/week. He asks whether he should switch to sumo or just 'pull harder'. You have one session to assess technique and one accessory slot per week.
1. Using moment-arm and joint-torque reasoning, explain why the early hip rise and forward bar drift make the just-below-knee sticking point worse.
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The bar’s horizontal position determines the external moment arm of the load about the hip and knee. Starting 3 cm anterior to midfoot and then drifting farther forward increases the horizontal distance from the bar to the hip joint. That larger moment arm requires more hip-extensor torque to keep the trunk from collapsing and to keep the bar moving vertically. When the hips rise before the bar leaves the floor, the trunk becomes more horizontal and the lumbar spine experiences greater shear and extension demand; the lifter is essentially trying to complete a hip-dominant pull while the knees have not contributed enough to get the bar past the knee.
The just-below-knee region is already a transition zone where knee-extension contribution is decreasing and hip-extension demand is high. A forward bar path adds an unnecessary flexion moment and makes the bar harder to keep over midfoot. The result is a sticking point that is partly a technique and moment-arm problem, not simply a lack of maximal effort.
2. Recommend two setup or technique changes and one accessory lift. Explain how each targets the identified moment-arm problem, and state how you would test whether the change worked in 3 weeks.
Read the worked answer
Change 1 - bar over midfoot with lat tension before the pull. Set the bar so it is vertically over the midfoot, pull the slack out of the bar, and create tension through the lats and trunk before the hips move. This reduces the external moment arm at the hip and discourages the bar from drifting forward.
Change 2 - pause just below the knee. Use a 2-second pause at the sticking point with 70–80% to reinforce the position and prevent the hips from shooting up. This is a skill-specific fix, not just a strength exercise.
Accessory - tempo or paused deadlift from a 2–3 cm deficit (one weekly slot, 3–4 sets of 4–5 reps at RPE 7). The deficit increases range and time under tension while forcing the lifter to keep the bar close; the pause reinforces the transition.
Testing at 3 weeks: video the bar path from the side, measure horizontal bar displacement at knee height, and compare a 3-rep set at 85% for bar-path consistency and RPE. Success is a more vertical bar path and fewer early hip-rise reps, not just a higher estimated 1RM.