Muscle activation during four Pilates core stability exercises in quadruped position

Area of Science:

• Biomechanics
• Exercise Physiology
• Rehabilitation

Background:

• Pilates is a popular exercise modality focusing on core strength and stability.
• Understanding muscle activation during specific Pilates exercises is crucial for optimizing training and injury prevention.

Purpose of the Study:

• To compare the muscle activation of trunk and hip stabilizers during four variations of Pilates core stability exercises performed in a quadruped position.

Main Methods:

• A descriptive study involving 19 healthy subjects experienced in Pilates.
• Surface electromyography was used to record muscle activity (iliocostalis, multifidus, gluteus maximus, rectus abdominis, obliques) during four distinct knee stretch exercises.
• Muscle activation was normalized by maximal voluntary isometric contraction.

Main Results:

• The retroverted pelvis with a flexed trunk significantly increased external oblique and gluteus maximus activation.
• The anteverted pelvis with trunk extension significantly enhanced multifidus activity.
• Neutral pelvis positions resulted in lower overall muscle activation, with similar rectus abdominis activity across all exercises, indicating maintained pelvic stability.

Conclusions:

• Variations in pelvic and trunk positioning during quadruped Pilates exercises significantly alter the activation patterns of key core and hip muscles.
• The rectus abdominis demonstrated consistent activation, suggesting it plays a role in maintaining pelvic stability across different exercise variations.