RSM-ORT-031
Written by Hironori Ikeda, MSc Sports Medicine
RSM International Academy · Chiang Mai, Thailand
Why Does a Swing Hurt When a Slow Trunk Turn Feels Easy?
A golfer may feel pain near impact but turn comfortably in a chair. A tennis player may tolerate a forehand yet struggle during a serve. These are different combinations of speed, joint position and repeated loading, even when the painful region is the same.
I identify the stroke, handedness, stance and exact phase before selecting a tissue target. The assessment then separates what the hips permit, how the chest turns relative to the pelvis, and which conditions reproduce the familiar complaint.
The aim is a useful clinical comparison—not a promise to build a perfect swing. Learn how anatomy, conservative palpation and a repeatable sporting task guide the next decision.
In This Article
- Why Does a Swing Hurt When a Slow Trunk Turn Feels Easy?
- In This Article
- 1. Golf or Tennis Pain? Identify the Stroke, Phase and Load
- 2. Oblique Function: Chest Rotation Relative to the Pelvis
- 3. Hip Rotation: Position Changes the Question
- 4. Palpation and Massage: Select a Relevant, Tolerable Region
- 5. Re-test the Stroke: Speed and Repetitions Matter
- Related RSM Clinical Blogs
- Study Orthopedic Massage at RSM
1. Golf or Tennis Pain? Identify the Stroke, Phase and Load
I ask whether the complaint appears in a golf backswing, transition, impact or follow-through, or during a tennis forehand, backhand or serve. Record handedness, equipment, recent practice volume and the speed that first produces symptoms. Begin only with a comfortable version; do not repeatedly provoke sharp pain.
In a right-handed golf swing, the left side is the lead side. As the chest turns away from and then toward the target, the hips and pelvis contribute differently across phases. Mun and colleagues observed this changing relationship in 15 injury-free professional golfers; their torso–pelvis model did not measure each lumbar vertebra separately.
A shortened swing that feels easier is useful information, but it changes the task. I record it separately from the original stroke. Acute symptoms after a fall, progressive weakness, or chest pain with breathing difficulty take priority over a sporting movement screen.
2. Oblique Function: Chest Rotation Relative to the Pelvis
The external oblique runs from the lower ribs toward the abdominal midline and pelvis; the internal oblique lies deeper with a different fibre direction. With the pelvis relatively still, the left external and right internal oblique assist right trunk rotation. Together, the paired obliques also help flex the trunk; one-sided action can assist same-side lateral flexion.
I compare comfortable seated chest turns with feet supported and arms folded. Keep the pelvis as still as reasonably possible, then allow it to turn during a separate standing trial. Note the chest direction, pelvic movement, rib-region symptoms and whether the client adds extension to reach farther.
The difference shows how the task is organized, not which oblique is damaged. A bigger standing turn may come from the hips and pelvis. A painful seated turn can involve several tissues, and external observation cannot assign it to a particular facet or costovertebral joint.
3. Hip Rotation: Position Changes the Question
The femoral head rotates within the acetabulum while the gluteal and deep hip muscles help control the thigh relative to the pelvis. Gluteus maximus assists hip extension and external rotation. Rotational leverage of several hip muscles changes with hip flexion, so a finding in a seated position does not transfer unchanged to every stance.
With the client seated and the thigh supported, I compare gentle internal and external rotation while limiting pelvic rolling. At a flexed knee, moving the foot outward accompanies hip internal rotation. Record the same hip position, symptom location and active range on both sides; stop rather than force through groin pain.
I then compare a comfortable practice turn with the player's usual stance and a separately recorded stance modification. Easier turning may reflect a different hip demand. It does not prove that a tight hip caused the back pain, nor justify stretching the hip to match the other side at any cost.
4. Palpation and Massage: Select a Relevant, Tolerable Region
I use the movement findings to choose a region for gentle palpation: for example, an oblique area relevant to trunk turning or a gluteal region associated with a limited hip comparison. Establish consent and comfortable support. Tenderness is an observation, not proof that a trigger point explains the stroke.
For a gluteal soft-tissue teaching example, broad contact loads the supported muscle belly gently inward; a short glide over the surface is a different movement from that pressure direction. Avoid pressing a bony prominence or trying to follow a deep nerve with the fingers. If an oblique region was selected instead, stay on accessible muscular tissue without driving beneath a rib margin or into the abdomen. Breathing should remain comfortable. For local guarding or protective breath holding, reduce or pause the input and check comfort. New sharp rib pain, spreading symptoms or numbness means stop the contact and reassess whether manual care is appropriate.
If conservative massage changes comfort, I record that as a response rather than a released joint, corrected swing or repaired tissue. NIH guidance describes limited or short-lived benefits for some pain conditions and possible harms. Exercise progression, coaching and medical assessment may address needs that massage cannot resolve.
5. Re-test the Stroke: Speed and Repetitions Matter
I repeat the agreed stroke with the same stance, equipment, range, speed and number of repetitions. Compare familiar pain, where in the sequence it occurs and the client's confidence. For golf, retain the same shortened or full practice-swing definition; for tennis, do not substitute a forehand for a symptomatic serve.
Seeley and colleagues found that forehand trunk and lower-limb kinematics changed with ball speed in 12 highly skilled players. That helps explain why an easy slow rehearsal is not equivalent to a fast stroke. It does not identify a painful structure or establish safe return to a match.
If only the modified condition improves, retain that distinction and plan a graded follow-up within the client's care plan. Persistent or worsening symptoms require reassessment. A single comfortable attempt after massage does not establish tolerance for a round of golf, repeated serving or next-day recovery.
Related RSM Clinical Blogs
Browse all Orthopedic Massage for Spine Mobility & Breathing clinical guides
▷ Low Back / Rib Tightness After Golf: Hip-Thorax Rotation — Sports Massage · Follow a golf-specific comparison of hip motion, thorax–pelvis rotation and familiar low-back or rib symptoms.
▷ One Side of the Rib Cage Won't Expand: Asymmetry & Rotation — Orthopedic Massage — Spine Mobility & Breathing · Examine one-sided rib excursion while separating breathing observations from trunk rotation.
▷ Rotation Easier to One Side: Spine, Hip & Task Factors — Dynamic Posture Assessment · Compare hip, pelvic and trunk contributions when one turning direction feels easier.
Study Orthopedic Massage at RSM
The Orthopedic Massage — Spine Mobility & Breathing Course teaches regional spine and rib assessment linked to a familiar task. Trigger Point Therapy provides the clinical-palpation foundation for selecting relevant tissue.
Sports Massage develops sport-specific assessment and treatment reasoning; Dynamic Posture Assessment extends the comparison to stance, load and joint coordination. Confirm current preparation and course suitability with RSM.
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