Validity and test-retest reliability of a smartphone app for measuring rising time, velocity, power, and inter-limb asymmetry during single-leg sit-to-stand test in female-trained athletes
(Gültigkeit und Test-Retest-Reliabilität einer Smartphone-App zur Messung von Hubzeit, Geschwindigkeit, Kraft und Asymmetrie zwischen den Gliedmaßen beim einbeinigen Sit-to-Stand-Test bei trainierten Sportlerinnen)
The aim was to determine the validity and test - retest reliability of the Sit to Stand App variables (rising time, vertical velocity, and power) for measuring single-leg sit-to-stand (STS) test compared to those derived from ground reaction force data. Twenty-seven female athletes performed the single-leg STS test over three consecutive sessions simultaneously recorded with a force plate and the smartphone app. Validity was assessed with Pearson`s correlation coefficient, intra-class correlation coefficient (ICC), and percentage error. Reliability was assessed with the ICC. Almost perfect correlations (r = 0.95) and excellent agreement (ICC = 0.96-0.97) between the app and force plate measures with low percentage errors (=7.3%) were found. The app showed good-to-excellent reliability (ICC = 0.88-0.92) with no differences in inter-limb asymmetry over three sessions. The app was highly valid and reliable for measuring single-leg STS performance. Practitioners can use this app to assess lower-limb performance in female athletes.
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| Schlagworte: | |
|---|---|
| Notationen: | Biowissenschaften und Sportmedizin Naturwissenschaften und Technik |
| Tagging: | Evaluation Kraftplattform Smartphone App |
| Veröffentlicht in: | Measurement in Physical Education and Exercise Science |
| Sprache: | Englisch |
| Veröffentlicht: |
2024
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| Online-Zugang: | https://doi.org/10.1080/1091367X.2024.2377096 |
| Jahrgang: | 28 |
| Heft: | 4 |
| Seiten: | 391-400 |
| Dokumentenarten: | Artikel |
| Level: | hoch |