Dancers Show More Accurate Trunk-Pelvic Joint Angle Reproduction While Wearing a Jacket Augmented With Elastic Bands

Area of Science:

• Biomechanics
• Dance Science
• Kinesiology

Background:

• Dancers require precise trunk and shoulder girdle control for performance.
• Proprioception, the sense of body position, is crucial for dancers' movements.
• The Backalast® compression jacket is designed to enhance trunk and shoulder proprioception.

Purpose of the Study:

• To investigate the efficacy of the Backalast® compression jacket in improving trunk and shoulder girdle proprioception in dancers.
• To determine if the garment enhances trunk-pelvis angle reproduction and vertical trunk alignment during dance movements.

Main Methods:

• Fifteen dance students (4 male, mean age 19.9 years) participated in the study.
• Optical motion capture measured trunk-pelvis angle and trunk alignment before and after trunk movements.
• Paired t-tests compared the Backalast® jacket against a control compression shirt within subjects.

Main Results:

• The Backalast® jacket showed a significantly greater improvement in trunk proprioception (trunk-pelvis angle reproduction) compared to the control shirt (0.8° vs 1.8°, P=0.03).
• No significant difference was found between the garments regarding vertical trunk alignment after movement series.

Conclusions:

• The Backalast® compression jacket may enhance trunk proprioception in dancers.
• The garment did not significantly alter the participants' standing trunk alignment (proximity to global vertical).
• Further research could explore long-term effects and diverse dance populations.