Plyometrics in the Ankle Stabilizing Muscles in Improving Balance in Ballerinas

Not Applicable

Withdrawn

• Conditions: Balance; Distorted
• Interventions: Other: Plyometric protocol

• Registration Number: NCT04306068
• Lead Sponsor: Investigación en Hemofilia y Fisioterapia

Brief Summary

Balance is essential for successful dance performance. The effort of salsa dancers is given by the levels of stability, produced by the muscular activation of lower limbs.

The objective of the study is to assess the effectiveness of an intervention of plyometric exercises in the improvement of balance in salsa dancers from 18 to 25 years.

Randomized clinical study. 40 dancers will be randomized to the two study groups: experimental (application of plyometric exercise protocol) and control (without intervention). The treatment will last 5 weeks, with 2 weekly sessions of 25 minutes each. The dependent variables will be: equilibrium (measured with star excursion balance). The sample distribution will be calculated using the Kolmogorov-Smirnof test. The changes after each evaluation will be calculated with the t-student test. With an ANOVA of repeated measures, the intra and intersubject effect will be observed. The effect size will be obtained with Cohen's formula.

It is expected to see improvement in the stability of the ankle and the level of balance in the dancers.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2020-03-10
• Study First Submitted QC: 2020-03-10
• Study First Posted: 2020-03-12
• Study Start: 2020-03-24
• Primary Completion: 2020-05-30
• Study Completion: 2020-06-10
• Status Verified: 2021-09
• Last Update Submitted: 2021-09-01
• Last Update Posted: 2021-09-05

Recruitment & Eligibility

• Status: WITHDRAWN
• Sex: Female
• Target Recruitment: Not specified

Inclusion Criteria

• Dancers
• Female
• From 18 to 25 years
• With more than a year of dance practice
• And without musculoskeletal injury at the time of starting the study.

Exclusion Criteria

• Subjects who do not attend all training sessions
• Pregnant women or intending to remain in state during the study period
• Have not signed the informed consent

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Experimental group	Plyometric protocol	Athletes included in the experimental group will perform a plyometric exercise protocol. Each session will consist of a 4-station circuit with 1 minute rest between each station and 30 seconds between sets

Primary Outcome Measures

Name	Time	Method
Change from baseline stability after treatment and at month	Screening visit, within the first seven days after treatment and after one month follow-up visit	The Star excursion balance test will be used. Before performing the test, the movements will be explained. The test will be calculated in 3 directions with three tapes 140cm long and with a goniometer the subsequent sections of 135º from the previous section will be calculated, and 45º between the subsequent sections.; Participants will start standing with both feet with the midpoint on the intersection mark in the center of the grid. They will be instructed to keep their hands on their hips, their heads facing forward at all times and keeping their feet flat on the floor trying to reach as far as possible in all three directions. The range will be measured by marking the tape with a pen and then measured with a measurement quote.

Trial Locations

Locations (1)

Universidad Europea de Madrid; 🇪🇸 Madrid, Comunity Of Madrid, Spain