The following limitations are usually at the origin of this swing characteristic.

A restricted internal rotation of the trail hip can prevent the player from rotation into their trail hip during the backswing, causing them to shift or sway lateral instead. As well, a Stability or Motor Control Dysfunction in rotation, extension or flexion (trail hip) will cause instability in the load phase of the backswing.

Positive Tests: “Lower Quarter Rotation”, “Bridge w/ Leg Extension”, “Single Leg Balance", Seated and Prone Hip Rotation.

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The ankle normally everts slightly in the backswing to allow the pressure to load the inside of the trail foot, if there is an Ankle Eversion Mobility Dysfunction (trail foot) this will cause the player to laterally shift/sway instead. Also, a limitation in trail internal tibial rotation may cause the player to sway as a compensation.

Positive Tests: Passive Ankle Eversion, Seated and Passive Tibial Rotation Tests.

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Reduced spine mobility and motor control can cause the player to sway as a compensation.

Positive Tests: “Torso Rotation”, “Seated Trunk Rotation”, “Pelvic Rotation”, Lumbar Locked Extension/Rotation (trail side).

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A core Stability and Motor Control Dysfunction (weak core) can be at the origin of this swing deficiency, sufficient core stabilisation is needed in order to do a proper weight shift.

Positive Tests: “Bridge w/ Leg Extension”, Passive Lumbar Lock Extension/Rotation, Half Kneeling Narrow Base Test.