- Title
- Validity and between-unit agreement of commercially-available linear position transducer and inertial sensor devices during loaded countermovement jumps
- Creator
- Tredrea, Matthew S. J.; Clarke, Anthea C.; Middleton, Kane J.; Bourne, Matthew N.; Carey, David L.; Scanlan, Aaron T.; Dascombe, Ben J.
- Relation
- Sports Biomechanics Vol. -, Issue 15 August 2022, p. 1-16
- Publisher Link
- http://dx.doi.org/10.1080/14763141.2022.2109509
- Publisher
- Routledge
- Resource Type
- journal article
- Date
- 2022
- Description
- To assess the validity and between-unit agreement of velocity monitoring devices during incrementally-loaded countermovement jumps (CMJ), 16 males (24.0 ± 3.5 yr) completed 12 CMJs on a force plate (FP). Performance variables were collected through two linear position transducers (GymAware [GA]) and four accelerometer-based devices (two PUSH units, two Bar Sensei units). Pearson correlations (r) and coefficients of variation (CV) demonstrated strong to very-strong relationships (r = 0.60-0.88) and poor agreement (CV = 11.7-25.3%) between FP and GA, and moderate to very-strong relationships (r = 0.31-0.81) and poor agreement (CV = 10.1-24.2%) between FP and PUSH. Between-unit comparisons demonstrated moderate to very-strong relationships (r = 0.50-0.88) with poor agreement (CV = 10.8-26.6%) for GA, and very weak to very-strong relationships (r = 0.01-0.87) with moderate to poor agreement (CV = 9.1-24.1%) for PUSH. Bar Sensei units were excluded from analyses. Loaded CMJ data collected with either device displayed poor agreement with a FP. Velocity monitoring devices demonstrate poor validity across all loads; however, GA demonstrated strong between-unit agreement. A FP should be utilised to accurately assess CMJ performance at all times.
- Subject
- gymAware; PUSH; Bar Sensei; agreement; velocity
- Identifier
- http://hdl.handle.net/1959.13/1454140
- Identifier
- uon:44844
- Identifier
- ISSN:1476-3141
- Language
- eng
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