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Predicting the Clean Movement Technique in Crossfit ® Athletes Using an Optimal Upper-Limb Range of Motion: A Prospective Cohort Study

Author

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  • Antonio Cejudo

    (Department of Physical Activity and Sport, Faculty of Sport Sciences, CEIR Campus Mare Nostrum (CMN), University of Murcia, 30720 Murcia, Spain
    Locomotor System and Sport Research Group (E0B5-07), University of Murcia, 30720 Murcia, Spain)

Abstract

Background: The aim of this study was to determine the optimal upper-limb range of motion (ROM) profile for the catch phase of the clean movement (CPCM) and to identify the key ROMs for performing the CPCM in CrossFit ® athletes. Methods: A prospective cohort study of twenty CrossFit ® athletes aged 20–36 years was conducted. Data were collected regarding age, anthropometrics, CrossFit ® training experience and upper-limb ROM. The ROM was measured using the ROM-SPORT method. After 7 months, athletes performed a clean movement with a load of 80% one repetition maximum. A Bayesian Student’s t-analysis, binary logistic regression analysis and Receiver Operating Characteristic analysis were performed. Results: The optimal upper-limb ROM profile that predicted correct CPCM performance was 78° in shoulder extension, 173° in shoulder flexion, 107° in shoulder external rotation, 89° in shoulder internal rotation, 153° in elbow flexion, 99° in elbow pronation and 92° in wrist extension (area under the curve ≥ 651; positive predictive value ≥ 80%). Shoulder external rotation, elbow pronation and wrist extension were found to be the most important ROMs for the efficient and safe performance of CPCM (area under the curve ≥ 854; positive predictive value ≥ 85.7%). Conclusion: The upper-limb ROM profile is associated with proper clean performance. Further studies are warranted to determine whether improving flexibility on upper-limb ROM may improve proper clean movement performance.

Suggested Citation

  • Antonio Cejudo, 2022. "Predicting the Clean Movement Technique in Crossfit ® Athletes Using an Optimal Upper-Limb Range of Motion: A Prospective Cohort Study," IJERPH, MDPI, vol. 19(19), pages 1-15, October.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:19:p:12985-:d:938370
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    References listed on IDEAS

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    1. Rafael Martínez-Gómez & Pedro L. Valenzuela & Lidia B. Alejo & Jaime Gil-Cabrera & Almudena Montalvo-Pérez & Eduardo Talavera & Alejandro Lucia & Susana Moral-González & David Barranco-Gil, 2020. "Physiological Predictors of Competition Performance in CrossFit Athletes," IJERPH, MDPI, vol. 17(10), pages 1-12, May.
    2. Antonio Cejudo, 2022. "Description of ROM-SPORT I Battery: Keys to Assess Lower Limb Flexibility," IJERPH, MDPI, vol. 19(17), pages 1-19, August.
    3. Antonio Cejudo & Víctor Jesús Moreno-Alcaraz & Riccardo Izzo & Francisco Javier Robles-Palazón & Pilar Sainz de Baranda & Fernando Santonja-Medina, 2020. "Flexibility in Spanish Elite Inline Hockey Players: Profile, Sex, Tightness and Asymmetry," IJERPH, MDPI, vol. 17(9), pages 1-14, May.
    Full references (including those not matched with items on IDEAS)

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