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2011 Publications

Time to stability differences between male and female dancers after landing from a jump on flat and inclined floors.by Pappas E, Kremenic I, Liederbach M, Orishimo KF, Hagins M. - last modified 2013-07-29 10:02
Clin J Sport Med. 2011 Jul;21(4):325-9. doi: 10.1097/JSM.0b013e31821f5cfb.

 

OBJECTIVE:

To determine the effect of gender and inclined floor on time to stability (TTS) after landing from a vertical jump.

DESIGN:

This study used a repeated measures design with male and female professional dancers landing on a flat and 4 inclined floors. A repeated measures univariate analysis of variance (gender × floor) was performed on TTS in the anterior-posterior and medial-lateral directions.

SETTING:

Biomechanics laboratory.

PARTICIPANTS:

Twenty-three female and 13 male professional dancers.

INDEPENDENT VARIABLES:

Gender and floor inclination (flat, posterior, anterior, lateral, and medial).

MAIN OUTCOME MEASURES:

Time to stability in the anterior-posterior and medial-lateral directions after landing from a vertical jump.

RESULTS:

Female dancers exhibited longer TTS in both directions (P ≤ 0.05). Floor inclination or the interaction of gender × floor did not have an effect on TTS (P > 0.3).

CONCLUSIONS:

Female dancers exhibited longer TTS after landing from a vertical jump compared with their male counterparts. This balance difference may be a factor related to the higher rate of ankle sprain among female dancers. Additionally, professional dancers exhibited similar TTS when landing on flat and inclined floors.