Test-retest reliability of different jump tests using the output sports movement sensor
Article
Richmond, D., Chavda, S., Turner, A. and Bishop, C. 2025. Test-retest reliability of different jump tests using the output sports movement sensor. Professional Strength and Conditioning.
| Type | Article |
|---|---|
| Title | Test-retest reliability of different jump tests using the output sports movement sensor |
| Authors | Richmond, D., Chavda, S., Turner, A. and Bishop, C. |
| Abstract | The aim of this study was to assess the within and between session reliability of the countermovement jump (CMJ), squat jump (SJ), drop jump (DJ), and 10 5 repeated jumps (10 5), in youth athletes using an Output Sports movement sensor. Thirty one participants (23 female, 8 male; mean age = 15 ± 0.7 years) performed three maximal trials of each test during two separate data collections sessions separated by seven days. CMJ height showed excellent within session reliability (session 1: ICC = 0.92, CV = 5%; session 2: ICC = 0.95, CV = 4%) and excellent between session reliability (ICC = 0.92, CV = 4%). SJ height demonstrated good to excellent within session reliability (session 1: ICC = 0.84, CV = 5%; session 2: ICC = 0.91, CV = 5%) and excellent between session reliability (ICC = 0.91, CV = 5%). For the DJ, within session reliability was moderate-to-excellent with moderate to high variability for jump height (JH) (session 1: ICC = 0.74, CV = 11%; session 2: ICC = 0.75, CV = 8%) contact time (CT) (session 1: ICC = 0.89, CV = 11%; session 2: ICC = 0.82, CV = 11%) and reactive strength index (RSI) (session 1: ICC = 0.92, CV = 12%; session 2: ICC = 0.69, CV = 14%). Between session reliability for the DJ ranged from moderate to good, alongside moderate to high variability for JH (ICC = 0.80, CV = 9%), CT (ICC = 0.62, CV = 11%), and RSI (ICC = 0.86, CV = 13%). For the 10 5 test, within session reliability ranged from good-to-excellent, with moderate-to-poor variability for JH (session 1: ICC 0.68, CV = 10%, session 2: ICC = 0.84, CV = 7%) CT (session 1: ICC = 0.79, CV = 5%; session 2: ICC = 0.75, CV = 5%) and RSI (session 1: ICC = 0.89, CV = 7%; session 2: ICC = 0.90, CV = 7%). Between session reliability for the 10 5 ranged from moderate to good, alongside moderate variability for JH (ICC = 0.83, CV = 8%), CT (ICC = 0.57, CV = 5%), and RSI (ICC = 0.85, CV = 7%). Finally, significant negative decreases were observed for CMJ height (g = -0.26; p < 0.05), SJ height (g = -0.25; p < 0.05), DJ height (g = - 0.12; p < 0.05), DJ CT (g = -0.42; p < 0.05), and 10 5 CT (g = -0.22; p < 0.05). For the most part, practitioners can consider these four jump tests reliable when using the Output sensor, although some additional familiarization and attention to coaching detail may be required for the DJ. |
| Sustainable Development Goals | 3 Good health and well-being |
| Middlesex University Theme | Health & Wellbeing |
| Publisher | UK Strength and Conditioning Association (UKSCA) |
| Journal | Professional Strength and Conditioning |
| ISSN | 1757-5834 |
| Publication process dates | |
| Accepted | 08 Dec 2025 |
| Deposited | 09 Dec 2025 |
| Output status | Accepted |
| Accepted author manuscript | File Access Level Open |
https://repository.mdx.ac.uk/item/30q885
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