RSM-DPA-011
Written by Hironori Ikeda, MSc Sports Medicine
RSM International Academy · Chiang Mai, Thailand
Does a Rotated-Looking Pelvis Explain the Walking Complaint?
One side of the pelvis may look farther forward, yet the client notices difficulty only when the opposite leg steps through. The useful question is when that difference becomes painful or limits the stride.
I compare femoral rotation relative to the pelvis with pelvic rotation relative to the room and chest rotation relative to the pelvis. These are different movements, even when they appear together in a walking video.
This guide shows how hip angle, abdominal muscle action and a controlled walking comparison can guide the next assessment without labelling the pelvis permanently twisted.
In This Article
- Does a Rotated-Looking Pelvis Explain the Walking Complaint?
- In This Article
- 1. ASIS and PSIS: Landmarks Are Not a Pelvic-Torsion Diagnosis
- 2. Hip Rotation: Fix the Test Position Before Comparing Sides
- 3. Oblique Function: Separate the Chest Turn From the Pelvic Turn
- 4. Walking Phase and Foot Direction: Test a Specific Hypothesis
- 5. Repeat the Original Walk and Keep Range Changes Separate
- Related RSM Clinical Blogs
- Study Dynamic Posture Assessment at RSM
1. ASIS and PSIS: Landmarks Are Not a Pelvic-Torsion Diagnosis
The ASIS and PSIS are bony reference points, not readings of joint displacement. Examiners have shown poor agreement when palpating PSIS asymmetry. I record an apparent difference without using it alone to choose a treatment side. With consent, I identify the landmarks using light contact in supported standing; I do not push the pelvic bones to make them match.
Ask which step or direction reproduces the familiar groin, buttock or back complaint. During several comfortable passes, note whether the pelvis turns differently as the right or left leg advances, and whether the chest follows it or turns relatively the other way.
A painless standing difference can remain an observation. A newly painful change, major trauma or inability to bear weight changes the assessment priority. I establish that context before asking the client to make the pelvis look symmetrical.
2. Hip Rotation: Fix the Test Position Before Comparing Sides
Gluteus maximus spans the posterior pelvis toward the femur and iliotibial tract and contributes to external rotation. Deeper rotators surround the posterior hip. Their rotational leverage changes with hip flexion, so one fixed muscle label cannot explain every restricted direction.
Anatomy note: Piriformis can change from external- to internal-rotation leverage with greater hip flexion in cadaver measurements; this is not a universal switch at exactly 60°.
In supported sitting with comparable hip and knee flexion, moving the foot outward turns the femur internally; moving it inward turns the femur externally. I keep the thigh supported and watch for the pelvis following the femur. That substitution must not be counted as extra hip range.
Compare comfortable active motion with gently assisted motion when appropriate, noting the symptom and endpoint separately. A side difference is an assessment finding, not proof of a shortened piriformis, displaced pelvis or particular joint lesion. A painful marked limit warrants a fuller hip examination.
3. Oblique Function: Separate the Chest Turn From the Pelvic Turn
External oblique runs from the lower ribs toward the abdominal midline and iliac region; internal oblique lies deeper with a different fibre direction. With the pelvis relatively fixed, external oblique contributes to opposite-side trunk rotation and internal oblique to same-side rotation. They work with other trunk muscles rather than acting as isolated switches.
I compare comfortable seated chest rotation with the feet supported and pelvis relatively still. I note side-bending, backward arching and whether the familiar symptom remains. This limits pelvic contribution; it does not isolate a single thoracic joint or prove which oblique is responsible.
I then allow the pelvis to turn during a standing step-and-turn. If the restriction changes mainly with the loaded leg, the hip and foot condition deserve attention. If it remains in supported chest rotation, I investigate the trunk before selecting posterior-hip pressure.
4. Walking Phase and Foot Direction: Test a Specific Hypothesis
During walking I record which leg is accepting weight, which is trailing, and when the pelvis appears to turn. A foot pointing outward does not reveal how much rotation occurred at the hip: the foot, lower leg and pelvis have their own orientations. I therefore compare the video with the supported hip findings rather than treating either as a substitute. If a comfortable rotation preference is present in both settings, I explore a workable foot position before asking the person to make both feet look identical.
Research in older women with knee osteoarthritis found hip-rotation differences alongside altered gait measures. That observational result supports considering adjacent joints in that population; it does not prove that a rotation difference causes this client's gait or that changing it will reduce knee loading.
If the complaint appears as a leg trails behind, I can compare a comfortable shorter step. I record walking pace and cadence because changing step length may change both. A more comfortable trial suggests a useful task option; it does not demonstrate that the pelvis has been repositioned.
5. Repeat the Original Walk and Keep Range Changes Separate
I return to the original walkway, footwear and pace, allowing the usual step length. I compare the familiar symptom, the phase of the pelvic turn and walking confidence across several passes. Improvement only in the shorter-step condition is documented as a helpful modification, not a change under identical conditions.
If hip rotation informed the decision, I repeat it with the same position and examiner where possible. Published between-examiner variation warns against overinterpreting small angle differences; it is not a universal minimum improvement threshold for one client.
A better table angle with unchanged walking difficulty leaves the functional question open. I follow the relevant walking duration and recovery separately. Progressive weakness or sensory change needs assessment, and new bladder, bowel or saddle sensory changes with back symptoms require emergency assessment rather than further movement trials.
Related RSM Clinical Blogs
Browse all Dynamic Posture Assessment clinical guides
▷ Body Shifts When Walking: Gait, Pelvis & Counter-Rotation — Dynamic Posture Assessment · Locate sideways translation and trunk counter-rotation within the walking cycle.
▷ Pelvic Rotation Asymmetry: Hip Rotators, Adductors & Trunk — Deep Tissue Massage · Select a gluteal or adductor tissue assessment when local findings match the rotation complaint.
▷ Back Stiff or Hip Stiff? Rotation & Extension Assessment — Orthopedic Massage — Spine Mobility & Breathing · Separate hip rotation and extension from a spinal contribution to turning difficulty.
Study Dynamic Posture Assessment at RSM
In Dynamic Posture Assessment & Kinetic Chain Training, practise observing hip, pelvis and trunk contributions during stepping and turning. Completion of Trigger Point Therapy provides a clinical palpation foundation.
Deep Tissue Massage develops selective gluteal and adductor contact choices; Orthopedic Massage adds regional spinal assessment when the trunk comparison remains limited.
View the course schedule and entry requirements · Ask about course suitability and registration
About the Author
Hironori Ikeda, MSc Sports Medicine
Hironori leads RSM International Academy in Chiang Mai, Thailand. His teaching connects functional anatomy, clinical palpation and kinetic-chain assessment with practical massage decisions.
Read Hironori’s professional background and teaching approach