Reliability of phase-specific outcome measurements in change-of-direction tests using a motorized resistance device
Bibliographic Data
| ID | 5284614 |
|---|---|
| Authors | Frederic Westheim (Norwegian School of Sport Sciences), Øyvind Gløersen (0000-0002-5424-6183, Norwegian School of Sport Sciences), Damian Harper (0000-0002-5430-1541, University of Lancashire), Håkon Laugsand (Norwegian School of Sport Sciences), Ola Eriksrud (0000-0003-4971-6723, Norwegian School of Sport Sciences, corresponding author) |
| Year | 2023 |
| Volume | 5 |
| Pages | 1212414-1212414 |
| Publication date | 2023-10-23 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Frontiers in Sports and Active Living (JOURNAL) |
| Journal identifiers | ISSN: 2624-9367 • E-ISSN: 2624-9367 |
| Publisher | Frontiers Media SA (PUBLISHER • CH) |
| DOI | 10.3389/fspor.2023.1212414 |
| PMID | 37936876 |
| OpenAlex | W4387878374 |
| Language | EN |
| Citations received | 1 |
| References cited | 26 |
This study aims to determine test-retest reliability of phase-specific information during initial acceleration, deceleration, and re-acceleration phases of different change-of-direction (CoD) tests using a motorized resistance device (MRD). A total of 21 participants (16 males and five females, with mean age of 22.3 ± 3.9 years, body mass of 75.2 ± 6.9 kg, height of 177.9 ± 6.8 cm) completed the modified 505 (m505), 10-0-5, and 15-0-5 CoD tests on four different test sessions while exposed to an external load (3 kg) provided by the MRD. Outcome variables included overall and phase-specific kinetic (force, power, and impulse) and kinematic (time, distance, velocity, and acceleration/deceleration) data during the initial acceleration, deceleration, and re-acceleration phases. The deceleration and re-acceleration phases were further divided into two subphases, namely, early and late subphases, using 50% of maximum velocity. Reliability was assessed using an intraclass correlation coefficient (ICC), coefficient of variation (CV), typical error (TE), and minimal detectable change (MDC). Good to excellent ICC values (>0.75) and acceptable (<10%) to good (<5%) CV values were observed for most outcome measurements. Specifically, 80.1% (822 out of 1,026) of all variables showed good or better relative reliability (i.e., ICC ≥ 0.75), while 97.0% (995 out of 1,026) of all variables showed acceptable or better absolute reliability (i.e., CV < 10%). In conclusion, the present study demonstrates that the MRD can obtain reliable phase-specific outcome measurements across different CoD tests, providing coaches and researchers with new opportunities to advance our understanding of CoD ability and inform more advanced CoD training prescriptions
Acceleration · Animal science · Coefficient of variation · Intraclass correlation · Kinematics · Physics · Power (physics · Reliability (semiconductor · Reproducibility · Statistics · Thermodynamics · Lower Extremity Biomechanics and Pathologies · Mathematics · Sports injuries and prevention · Sports Performance and Training
| Citations per year | 1 |
|---|---|
| Citation span | 2025 - 2025 (1) |
| Highly cited | No |