In the traditional pilates mat sequence, the Side Kick is number 21and sits at a very specific point for a reason. It is not simply a “leg exercise,” but a bridge between the foundational core work that comes before it and the more integrated, full-body control exercises that follow.
By the time you reach the Side Kick in the mat workout Joseph Pilates designed, the body should already be warm, stable through the centre, and organised through the shoulder girdle. The exercise tests whether lateral stability, pelvic control, breath, and alignment are truly integrated.
A Progression Toward Integrated Control
The Side Kick evolves naturally out of earlier abdominal and spinal work. After establishing flexion, extension, and rotation through the centre, the body is now challenged in a different plane, lateral stability.
Lying on your side removes the wide base of support you have on your back. Gravity now pulls the top leg away from your centre, and the pelvis must remain stacked and steady as the leg moves forward and back.
If you have been relying on gripping the hip flexors or collapsing through the waist in earlier exercises, the Side Kick exposes the lack of control immediately. When the sequencing is respected and each preceding exercise is fully integrated, the leg can move freely while the trunk remains quiet and organised.
Hip Strength & Pelvic Organisation
Although the movement appears to focus on the leg, the Side Kick relies heavily on deep pelvic and trunk stability.
The supporting side body must be active, engaging the obliques and deep lateral stabilisers. At the same time, the standing hip (the one on the mat) must anchor and stabilise the pelvis so the top leg can move independently.
This demands strength through the gluteus medius, deep rotators, and lower abdominals. Without this support, the pelvis rocks, the waist collapses, and tension shifts into the lower back or hip flexors.
The Side Kick therefore becomes a valuable tool to highlight the relationship between hip strength, core stability, and efficient leg movement.
Control Of Your Centre of Gravity
One of the most important benefits of the Side Kick is its effect on lateral balance and centre of gravity awareness.
Every body has a unique centre of gravity, influenced by proportions, spinal curves, muscle distribution, and movement habits. In a side-lying position, that centre shifts away from the floor, narrowing your margin for error.
As the leg swings forward and back, the body’s mass subtly shifts. The Side Kick teaches how to manage this shift by drawing stability into the underside waist and maintaining length through the spine, rather than allowing the pelvis to roll or the ribs to flare.
This requires precise timing between abdominal support, hip control, and breath. Even small misalignments can make the movement feel heavy, unstable, or disconnected.
By working with, rather than against, your individual centre, the Side Kick feels fluid and controlled rather than forced. This awareness is essential preparation for later, more advanced exercises where single sided strength, balance, and coordination are challenged.
The Side Kick earns its place in the mat sequence by demanding precision, not momentum. It connects earlier core work to later dynamic control exercises and reinforces a key pilates principle, control always comes before complexity.
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