Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players
Objectives: This study compares My Jump Lab and VertVision apps for measuring vertical jump height in handball players, assessing their validity and reliability. The research assesses both apps’ accuracy, particularly concerning higher jumps, where errors have been noted, aiming to determine the mos...
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MDPI AG
2025-06-01
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| Series: | Journal of Functional Morphology and Kinesiology |
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| Online Access: | https://www.mdpi.com/2411-5142/10/2/223 |
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| author | Amândio Dias Alexandre Coutan Bruno Silva Catarina Eufrásio Maria Teixeira Mariana Alberto |
| author_facet | Amândio Dias Alexandre Coutan Bruno Silva Catarina Eufrásio Maria Teixeira Mariana Alberto |
| author_sort | Amândio Dias |
| collection | DOAJ |
| description | Objectives: This study compares My Jump Lab and VertVision apps for measuring vertical jump height in handball players, assessing their validity and reliability. The research assesses both apps’ accuracy, particularly concerning higher jumps, where errors have been noted, aiming to determine the most reliable tool. The goal is to provide a direct comparison between apps, as well as confirm the apps’ validity and reliability for handball players. Methods: The present research is a transversal observational study. Twenty-seven amateur athletes performed five jumps on a contact mat with simultaneous recording by a smartphone with a high-speed camera. Pearson’s r, ICC, SEM, CV, and Bland–Altman plots were used to evaluate discrepancies and determine accuracy. Results: Pearson correlation showed strong relationships, with ICC values between 0.993 and 0.998. Both apps overestimated jump height by 1.86% compared to the platform. Bland–Altman plots indicated minimal differences between observers, confirming high validity and reliability for CMJ measurement. Both apps demonstrated very high concurrent validity (<i>r</i> > 0.9) and reliability, with ICC values near 1 and CV below 5%. My Jump Lab exhibited smaller inter-observer differences, indicating greater consistency. Conclusions: The ease of use, affordability, and portability make both apps valuable for performance monitoring, training, and injury recovery. While both demonstrated good validity and reliability, My Jump Lab proved more consistent in jump comparisons. These tools extend beyond sports, supporting physiotherapy assessments and athletic training across diverse populations. |
| format | Article |
| id | doaj-art-c17f6b6bb15d4236bf99844299bb37a3 |
| institution | Kabale University |
| issn | 2411-5142 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Journal of Functional Morphology and Kinesiology |
| spelling | doaj-art-c17f6b6bb15d4236bf99844299bb37a32025-08-20T03:27:32ZengMDPI AGJournal of Functional Morphology and Kinesiology2411-51422025-06-0110222310.3390/jfmk10020223Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball PlayersAmândio Dias0Alexandre Coutan1Bruno Silva2Catarina Eufrásio3Maria Teixeira4Mariana Alberto5Integrative Movement and Networking Systems Laboratory (INMOVNET-LAB), Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Caparica, PortugalPhysio-mob Clinic, 1163 Etoy, SwitzerlandEgas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Caparica, PortugalEgas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Caparica, PortugalEgas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health & Science, 2829-511 Caparica, PortugalLambert Clinic, 1750-071 Lisbon, PortugalObjectives: This study compares My Jump Lab and VertVision apps for measuring vertical jump height in handball players, assessing their validity and reliability. The research assesses both apps’ accuracy, particularly concerning higher jumps, where errors have been noted, aiming to determine the most reliable tool. The goal is to provide a direct comparison between apps, as well as confirm the apps’ validity and reliability for handball players. Methods: The present research is a transversal observational study. Twenty-seven amateur athletes performed five jumps on a contact mat with simultaneous recording by a smartphone with a high-speed camera. Pearson’s r, ICC, SEM, CV, and Bland–Altman plots were used to evaluate discrepancies and determine accuracy. Results: Pearson correlation showed strong relationships, with ICC values between 0.993 and 0.998. Both apps overestimated jump height by 1.86% compared to the platform. Bland–Altman plots indicated minimal differences between observers, confirming high validity and reliability for CMJ measurement. Both apps demonstrated very high concurrent validity (<i>r</i> > 0.9) and reliability, with ICC values near 1 and CV below 5%. My Jump Lab exhibited smaller inter-observer differences, indicating greater consistency. Conclusions: The ease of use, affordability, and portability make both apps valuable for performance monitoring, training, and injury recovery. While both demonstrated good validity and reliability, My Jump Lab proved more consistent in jump comparisons. These tools extend beyond sports, supporting physiotherapy assessments and athletic training across diverse populations.https://www.mdpi.com/2411-5142/10/2/223athletescontact platformmobile applicationjump heightvalidation study |
| spellingShingle | Amândio Dias Alexandre Coutan Bruno Silva Catarina Eufrásio Maria Teixeira Mariana Alberto Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players Journal of Functional Morphology and Kinesiology athletes contact platform mobile application jump height validation study |
| title | Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players |
| title_full | Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players |
| title_fullStr | Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players |
| title_full_unstemmed | Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players |
| title_short | Concurrent Validity and Reliability of Two Mobile Phone Applications for Measuring Vertical Jumps in Amateur Handball Players |
| title_sort | concurrent validity and reliability of two mobile phone applications for measuring vertical jumps in amateur handball players |
| topic | athletes contact platform mobile application jump height validation study |
| url | https://www.mdpi.com/2411-5142/10/2/223 |
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