What question did this study set out to answer?

To evaluate the validity and reliability of the mobile application My Jump for measuring countermovement jump (CMJ) height in an elderly population compared to a contact mat.

October 15, 2018PeerJOpen Access

The validity and reliability of the “My Jump App” for measuring jump height of the elderly

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Authors

RCRejane Maria Cruvinel-Cabral IOIransé Oliveira‐SilvaUniversidade Evangelica de Goiás AMAndré R. MedeirosUniversidade dos Açores

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Implication

Validation study demonstrates high reliability of the My Jump app against contact mats in older adults, suggesting a practical tool for assessing lower limb power.

Key Points

To evaluate the validity and reliability of the mobile application My Jump for measuring countermovement jump (CMJ) height in an elderly population compared to a contact mat.
Assessed a total of 123 countermovement jumps in an elderly cohort using both the mobile application and a standard contact mat.
Performed statistical tests for systematic bias and analyzed reliability across all 123 jumps.
Evaluated validity using all 123 jumps, the average height across attempts (N=41), and the highest jump recorded.
The agreement coefficient between the app and the contact mat was 0.948.
The typical error of measurement (TEM) was 1.150 cm, with a coefficient of variation (CV) of 10.10%.
Both the highest jump height and average jump height demonstrated validity and can be used indistinctly for performance evaluation in this cohort.

Cite This Study

Cruvinel-Cabral et al. (2018) studied this question.

synapsesocial.com/papers/69f9df92f8837bb19d172d6e https://doi.org/10.7717/peerj.5804

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Implication

Validation study demonstrates high reliability of the My Jump app against contact mats in older adults, suggesting a practical tool for assessing lower limb power.

The validity and reliability of the “My Jump App” for measuring jump height of the elderly

Discussion

Member takes

Implication

Key Points

Cite This Study

The validity and reliability of the “My Jump App” for measuring jump height of the elderly

Discussion

Member takes

Implication

Key Points

Cite This Study

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