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Reliability of My Jump 2 Derived from Crouching and Standing Observation Heights

Author

Listed:
  • Jose M. Jimenez-Olmedo

    (Physical Education and Sport, University of Alicante, 03690 Alicante, Spain)

  • Basilio Pueo

    (Physical Education and Sport, University of Alicante, 03690 Alicante, Spain)

  • Jose M. Mossi

    (ITeam, Institute of Telecommunications and Multimedia Applications, Universitat Politècnica de València, 46022 Valencia, Spain)

  • Lamberto Villalon-Gasch

    (Physical Education and Sport, University of Alicante, 03690 Alicante, Spain)

Abstract

The crouching or prone-on-the-ground observation heights suggested by the My Jump app are not practical in some settings, so users usually hold smartphones in a standing posture. This study aimed to analyze the reliability of My Jump 2 from the standardized and standing positions. Two identical smartphones recorded 195 countermovement jump executions from 39 active adult athletes at heights 30 and 90 cm, which were randomly assessed by three experienced observers. The between-observer reliability was high for both observation heights separately (ICC~0.99; SEM~0.6 cm; CV~1.3%) with low systematic (0.1 cm) and random (±1.7 cm) errors. The within-observer reliability for the three observers comparing the standardized and standing positions was high (ICC~0.99; SEM~0.7 cm; CV~1.4%), showing errors of 0.3 ± 1.9 cm. Observer 2 was the least accurate out of the three, although reliability remained similar to the levels of agreement found in the literature. The reliability of the mean observations in each height also revealed high reliability (ICC = 0.993; SEM = 0.51 cm; CV = 1.05%, error 0.32 ± 1.4 cm). Therefore, the reliability in the standing position did not change with respect to the standardized position, so it can be regarded as an alternative method to using My Jump 2 with practical added benefits.

Suggested Citation

  • Jose M. Jimenez-Olmedo & Basilio Pueo & Jose M. Mossi & Lamberto Villalon-Gasch, 2022. "Reliability of My Jump 2 Derived from Crouching and Standing Observation Heights," IJERPH, MDPI, vol. 19(16), pages 1-12, August.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:16:p:9854-:d:884758
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    References listed on IDEAS

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    1. Špela Bogataj & Maja Pajek & Vedran Hadžić & Slobodan Andrašić & Johnny Padulo & Nebojša Trajković, 2020. "Validity, Reliability, and Usefulness of My Jump 2 App for Measuring Vertical Jump in Primary School Children," IJERPH, MDPI, vol. 17(10), pages 1-12, May.
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    Cited by:

    1. Jose M. Jimenez-Olmedo & Alfonso Penichet-Tomas & Basilio Pueo & Lamberto Villalon-Gasch, 2023. "Reliability of ADR Jumping Photocell: Comparison of Beam Cut at Forefoot and Midfoot," IJERPH, MDPI, vol. 20(11), pages 1-13, May.

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