Biomechanical Comparison of Dominant and Non-Dominant Limbs during Leap-Landings in Contemporary Style Female Dancers. Issue 4 (December 2021)

• Record Type: Journal Article
• Authors: Chowning, Luke; Krzyszkowski, John; Nunley, Brandon; Lanier, Ryan; Gonzales, Isabella; Calamoneri, Tanya; Duffy, Ali; Harry, John R.
• Is Part Of: Journal of dance medicine & science. Volume 25:Issue 4(2021)
• Page Start: 231
• Page End: 237
• Publication Date: 2021-12
• Subjects: Dancing injuries -- Periodicals; Dance -- Physiological aspects -- Periodicals; Athletic Injuries -- therapy -- Periodicals; Dancing -- injuries -- Periodicals; Dancing -- physiology -- Periodicals; Dance -- Physiological aspects; Dancing injuries; Electronic journals; Periodical; Periodicals; Periodicals; 617.10275
• DOI: 10.12678/1089-313X.121521b
• Languages: English
• ISSNs: 1089-313X

Abstract

The execution strategy of technical dance movements is constrained by aesthetic and qualitative artistic requirements. As such, there are limited leap-landing strategies that may be used by dancers when executing a grand jeté or saut de chat. The purpose of this study was to determine potential differences in lower extremity angular positioning and joint loading when performing a dance-style leap landing. Fifteen female dancers (age: 20 ± 1 years; height: 1.61 ± 0.13 m; weight: 58.00 ± 11.89 kg) completed six leap-landing trials during which three-dimensional kinematics and kinetics data were collected. Paired-samples t-tests (α = 0.05) and Cohens d effect sizes (ES; large > 0.8) were used to compare the following variables: jump height; peak vertical ground reaction force; loading time; loading rate; joint angular positioning of the ankle, knee, hip, and trunk in the frontal and sagittal planes; and joint angular impulse of the ankle, knee, and hip in the frontal and sagittal planes between the dominant and non-dominant limbs. Frontal plane hip angular impulse was significantly greater in the dominant limb (p = 0.023, ES = 1.53). While no other statistically significant differences were observed between dominant and non-dominant limbs, moderate effect sizes were observed for the hip and trunk angles in the frontal plane along with hip impulse in the sagittal plane. This study indicates that dancers might slightly alter their landing strategy at the hip joint when leap-landing onto the dominant limb. Frontal plane hip mechanics should be considered to minimize overuse injury potential in the dominant limb.