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Hindi Research Article, J Athl Enhancement Vol: 3 Issue: 1
Test-Retest Reliability of Power Driven from One-Legged and Two-Legged Counter Movement Jump with External Load
| Ida Edvardsson1, Marie Hilmersson1 and Åsa B Tornberg2,3* |
| 1Surgical and Preoperative Science, Sports Medicine, Umeå University, Sweden |
| 2Department of Health Sciences, Division of Physiotherapy, Lund University, Baravägen 3, 221 85 Lund, Sweden |
| 3Genetic & Molecular Epidemiology (GAME) Unit, Lund University Diabetes Center (LUDC) Clinical Research Center, Skåne University Hospital, Lund University, Malmö, Sweden |
| Corresponding author : Åsa B Tornberg Department of Health Sciences, Division of Physiotherapy, Lund University, Lund, Sweden Tel: +4646-2229766; Fax: +4646-222 4202 E-mail: asa.tornberg@med.lu.se, asa.segerstrom@med.lu.se |
| Received: June 18, 2013 Accepted: December 26, 2013 Published: December 31, 2013 |
| Citation: Edvardsson I, Hilmersson M, Tornberg ÅB (2014) Test-Retest Reliability of Power Driven from One-Legged and Two-Legged Counter Movement Jump with External Load. J Athl Enhancement 3:1. doi:10.4172/2324-9080.1000136 |
Abstract
Test-Retest Reliability of Power Driven from One-Legged and Two-Legged Counter Movement Jump with External Load
The purpose of this study was to evaluate the testretest reliability of one-legged and two-legged counter movement jump (CMJ). 18 male and 23 female elite athletes performed two test sessions with three days in between. Each test session included CMJ on one- and two-leg performed in a Smith-machine with external loads. Variable assessed was average power (AP). The test-retest reliability was analyzed throughout 3 (trail) × 2 (sessions) repeated measures ANOVA, Pearson’s correlation coefficient (rp), intraclass correlation coefficient (ICC), coefficient of variance (CV), Bland-Altman plots and limits of agreement (LOA). The correlation between the results from one-legged and two-leg CMJ was high (rp=0.85-0.95, p<0.001). The results showed a good intra-session and inter-session reliability for all indices, for one-legged AP (ICC=0.90-0.99, CV=4.3-7.8 %) and two-legged AP (ICC=0.95-0.99 CV=2.6-4.7%). The minimal detectable change expressed as percentage (MDC %) was 7.5-8.0% for two-legged CMJ and 12-29% for one-legged CMJ. The athletes and coaches are able to use both onelegged and two-legged CMJ to evaluate training progress.
