Validity and Test-retest Reliability of the Jumpo App for Jump Performance Measurement

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11510%2F21%3A10433373" target="_blank" >RIV/00216208:11510/21:10433373 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f-adTf5HTd" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=f-adTf5HTd</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Validity and Test-retest Reliability of the Jumpo App for Jump Performance Measurement

Popis výsledku v původním jazyce

The vertical jump test is one of the simplest and most prevalent physical tests used in practice and research. This study investigated the validity and reliability of a new mobile application (Jumpo) for measuring jump performance on Android devices. University-aged students (n = 10; 20 +- 3 years; 176 +- 6 cm; 68 +- 9 kg) reported to the laboratory on three occasions (2-7 days apart): to be familiarized with the jump performance measurements and then for test-retest reliability assessments. Participants performed countermovement jumps (CMJ), squat jumps (SJ), and right and left single-legged jumps in random order on a force platform while being recorded by a smartphone&apos;s slow-motion camera. Flight time was selected as the criterion variable. Strong positive correlations between the Jumpo and force platform were observed for each jump type tested (r &gt;= 0.93), although the flight times obtained with the Jumpo App were systematically shorter than those provided by the force platform by 3-6% (p &lt; 0.001). The Jumpo App demonstrated a high test-retest reliability (ICC &gt;= 0.94, CV &lt;= 3.7%) with no differences between the coefficients of variation obtained from the Jumpo App and force platform (p &gt;= 0.25). With respect to jump type, data from double-legged jumps (CMJ and SJ) were more accurately measured than data from single-legged jumps. The Jumpo App provides a valid and reliable measurement of jump performance, but the following equation should be used to calibrate its flight time results, allowing comparisons to be made to force platform data: Force platformflight time = 0.948 x Jumpoflight time + 41.515. Future studies should cross-validate the calibration equation in a different sample of individuals.

Název v anglickém jazyce

Validity and Test-retest Reliability of the Jumpo App for Jump Performance Measurement

Popis výsledku anglicky

The vertical jump test is one of the simplest and most prevalent physical tests used in practice and research. This study investigated the validity and reliability of a new mobile application (Jumpo) for measuring jump performance on Android devices. University-aged students (n = 10; 20 +- 3 years; 176 +- 6 cm; 68 +- 9 kg) reported to the laboratory on three occasions (2-7 days apart): to be familiarized with the jump performance measurements and then for test-retest reliability assessments. Participants performed countermovement jumps (CMJ), squat jumps (SJ), and right and left single-legged jumps in random order on a force platform while being recorded by a smartphone&apos;s slow-motion camera. Flight time was selected as the criterion variable. Strong positive correlations between the Jumpo and force platform were observed for each jump type tested (r &gt;= 0.93), although the flight times obtained with the Jumpo App were systematically shorter than those provided by the force platform by 3-6% (p &lt; 0.001). The Jumpo App demonstrated a high test-retest reliability (ICC &gt;= 0.94, CV &lt;= 3.7%) with no differences between the coefficients of variation obtained from the Jumpo App and force platform (p &gt;= 0.25). With respect to jump type, data from double-legged jumps (CMJ and SJ) were more accurately measured than data from single-legged jumps. The Jumpo App provides a valid and reliable measurement of jump performance, but the following equation should be used to calibrate its flight time results, allowing comparisons to be made to force platform data: Force platformflight time = 0.948 x Jumpoflight time + 41.515. Future studies should cross-validate the calibration equation in a different sample of individuals.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

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OECD FORD obor

30306 - Sport and fitness sciences

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Exercise Science [online]

ISSN

1939-795X

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

677-686

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-85108540219