01/27/2026
Hip Flexor Strains Fail at End Range
Hip flexor strains rarely occur when a muscle is short and relaxed.
They most often occur when the hip flexors are lengthened and asked to produce force, such as during sprinting, cutting, or kicking.
From a tissue-loading perspective, muscle strain risk increases when force demand is high and the muscle is near end range, especially if load tolerance hasn’t been rebuilt yet.
Research on muscle strain mechanisms consistently shows higher injury risk during high-load contractions at longer muscle lengths. This is why rehab needs to progress beyond pain relief and basic strengthening.
This drill restores force tolerance in a lengthened position in a controlled, progressive way.
Pain down first.
Gradual loading next.
Strength through range before speed.