Hip Mobility Work — and Where a Trainer's Scope Ends
Why hip mobility matters for squatting and lifting, and how to tell normal tightness from a problem that needs referral.
Before this: The Pelvis & Hips: An Overview
You will be able to
- Distinguish normal muscular tightness from hip joint warning signs.
- Explain why hip external rotation range matters for squat depth.
- State what falls inside versus outside a trainer's scope regarding hip pain.
⚠ Safety note
Radiating pain, numbness, or a locking/catching hip joint are signals to refer to a healthcare professional. General muscular tightness is a normal training target; joint pathology is not something a trainer treats.
Why hip range of motion matters
Comfortable hip external rotation and flexion range let the thighs rotate outward and the hips sink low without the low back or knees compensating — relevant to squat depth, lunges, and everyday tasks like getting up from the floor.
Tight muscle vs. joint problem
A gentle, non-painful stretch sensation in a mobility drill is normal muscular tightness. Sharp, radiating, or locking/catching sensations are different — they suggest something is happening at the joint itself (or the nearby nerve), not just a short muscle.
Staying in scope
A trainer's job is to coach mobility drills, progressions, and strength work within a pain-free range. Diagnosing labral tears, impingement, or nerve involvement is outside that scope — those clients should be referred to a physician or physical therapist.
Sources for this lesson
“Persistent or radiating joint pain, or pain with locking or catching, should be evaluated by a healthcare professional.”
National Institute of Arthritis and Musculoskeletal and Skin Diseases — NIH / NIAMS · Back Pain
Government / official guideline · License: Public domain (U.S. government work) unless otherwise noted. · Last checked 2026-07-19
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