Reliability of Force Plate Metrics During Standard Jump, Balance, and Plank Assessments in Military Personnel
Smith, Chelsea, Doma, Kenji, Heilbronn, Brian, and Leicht, Anthony (2023) Reliability of Force Plate Metrics During Standard Jump, Balance, and Plank Assessments in Military Personnel. Military Medicine. (In Press)
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Abstract
Introduction: Prevention of musculoskeletal injury is vital to the readiness, performance, and health of military personnel with the use of specialized systems (e.g., force plates) to assess risk and/or physical performance of interest. This study aimed to identify the reliability of one specialized system during standard assessments in military personnel.
Methods: Sixty-two male and ten female Australian Army soldiers performed a two-leg countermovement jump (CMJ), one-leg CMJ, one-leg balance, and one-arm plank assessments using a Sparta Science force plate system across three testing sessions. Sparta Science (e.g., total Sparta, balance and plank scores, jump height, and injury risk) and biomechanical (e.g., average eccentric rate of contraction, average concentric force, and sway velocity) variables were recorded for all sessions. Mean ± SD, intraclass correlation coefficients (ICCs), coefficient of variation, and bias and limits of agreement were calculated for all variables.
Results: Mean results were similar between sessions 2 and 3 (P > .05). The relative reliability for the Sparta Science (ICC = 0.28-0.91) and biomechanical variables (ICC = 0.03-0.85) was poor to excellent. The mean absolute reliability (coefficient of variation) for Sparta Science variables was similar to or lower than that of the biomechanical variables during the CMJ (1-10% vs. 3-7%), one-leg balance (4-6% vs. 9-14%), and one-arm plank (5-7% vs. 12-17%) assessments. The mean bias for most variables was small (<5% of the mean), while the limits of agreement varied with most unacceptable (±6-87% of the mean).
Conclusions: The reliability of most Sparta Science and biomechanical variables during standard assessments was moderate to good. The typical variability in metrics documented will assist practitioners with the use of emerging technology to monitor and assess injury risk and/or training interventions in military personnel.
| Item ID: | 77271 |
|---|---|
| Item Type: | Article (Research - C1) |
| ISSN: | 1930-613X |
| Copyright Information: | © The Association of Military Surgeons of the United States 2022. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Date Deposited: | 12 Feb 2023 23:19 |
| FoR Codes: | 42 HEALTH SCIENCES > 4207 Sports science and exercise > 420701 Biomechanics @ 50% 42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified @ 50% |
| SEO Codes: | 14 DEFENCE > 1401 Defence > 140110 Personnel @ 50% 13 CULTURE AND SOCIETY > 1306 Sport, exercise and recreation > 130699 Sport, exercise and recreation not elsewhere classified @ 50% |
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