Validity of the iLOAD® app for resistance training monitoring
Background This study aimed (I) to assess the inter-rater agreement for measuring the mean velocity (MV) of the barbell with the iLOAD® app, and (II) to compare the magnitude of the MV and total work of a training session between the iLOAD® app and a linear encoder (reference method). Method Sixteen...
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PeerJ Inc.
2019-08-01
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| _version_ | 1797418098299502592 |
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| author | Evandro Claudino de Sá André Ricarte Medeiros André Santana Ferreira Amador García Ramos Danica Janicijevic Daniel Boullosa |
| author_facet | Evandro Claudino de Sá André Ricarte Medeiros André Santana Ferreira Amador García Ramos Danica Janicijevic Daniel Boullosa |
| author_sort | Evandro Claudino de Sá |
| collection | DOAJ |
| description | Background This study aimed (I) to assess the inter-rater agreement for measuring the mean velocity (MV) of the barbell with the iLOAD® app, and (II) to compare the magnitude of the MV and total work of a training session between the iLOAD® app and a linear encoder (reference method). Method Sixteen young healthy individuals (four women and 12 men) were tested in two sessions separated by 48 h. The 10 repetition maximum (RM) load was determined in the first testing session in the half squat exercise. The second testing session consisted of 3 sets of 10 repetitions during the half squat exercise performed against the 10RM load. Both the iLOAD® app and a linear encoder were used to calculate the MV and total work of each training set. MV was recorded with the iLOAD® app by two independent researchers to evaluate the inter-rater agreement. Results Trivial differences and nearly perfect correlations were observed between raters for the MV values collected under individual sets (effect size [ES] ≤ 0.02, r ≥ 0.987), as well as for the whole training session (ES = 0.01, r = 0.997). Trivial-small differences and nearly perfect correlations were observed between the iLOAD® app and the linear encoder (Chronojump, Barcelona, Spain) for MV (EV ≤ 0.25, r ≥ 0.903) and total work (ES ≤ 0.05, r ≥ 0.973). Bland-Altman plots did not reveal heteroscedasticity of the errors between the iLOAD® app and the linear encoder for MV (r2 = 0.010) and total work (r2 < 0.001). Conclusions iLOAD® is a valid smartphone app which can provide real-time feedback of the MV and total work completed in a set of multiple repetitions in the half squat exercise. |
| first_indexed | 2024-03-09T06:27:38Z |
| format | Article |
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| language | English |
| last_indexed | 2024-03-09T06:27:38Z |
| publishDate | 2019-08-01 |
| publisher | PeerJ Inc. |
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| series | PeerJ |
| spelling | doaj.art-2d202f91e5144ab8ba4e2aec1b07bf622023-12-03T11:14:35ZengPeerJ Inc.PeerJ2167-83592019-08-017e737210.7717/peerj.7372Validity of the iLOAD® app for resistance training monitoringEvandro Claudino de Sá0André Ricarte Medeiros1André Santana Ferreira2Amador García Ramos3Danica Janicijevic4Daniel Boullosa5iLOAD Solutions, Brasilia, BraziliLOAD Solutions, Brasilia, BraziliLOAD Solutions, Brasilia, BrazilDepartment of Sports Sciences and Physical Conditioning, Faculty of Education, Universidad Católica de la Santísima Concepción, Concepción, ChileFaculty of sport and physical education, The Research Centre, University of Belgrade, Belgrade, SerbiaiLOAD Solutions, Brasilia, BrazilBackground This study aimed (I) to assess the inter-rater agreement for measuring the mean velocity (MV) of the barbell with the iLOAD® app, and (II) to compare the magnitude of the MV and total work of a training session between the iLOAD® app and a linear encoder (reference method). Method Sixteen young healthy individuals (four women and 12 men) were tested in two sessions separated by 48 h. The 10 repetition maximum (RM) load was determined in the first testing session in the half squat exercise. The second testing session consisted of 3 sets of 10 repetitions during the half squat exercise performed against the 10RM load. Both the iLOAD® app and a linear encoder were used to calculate the MV and total work of each training set. MV was recorded with the iLOAD® app by two independent researchers to evaluate the inter-rater agreement. Results Trivial differences and nearly perfect correlations were observed between raters for the MV values collected under individual sets (effect size [ES] ≤ 0.02, r ≥ 0.987), as well as for the whole training session (ES = 0.01, r = 0.997). Trivial-small differences and nearly perfect correlations were observed between the iLOAD® app and the linear encoder (Chronojump, Barcelona, Spain) for MV (EV ≤ 0.25, r ≥ 0.903) and total work (ES ≤ 0.05, r ≥ 0.973). Bland-Altman plots did not reveal heteroscedasticity of the errors between the iLOAD® app and the linear encoder for MV (r2 = 0.010) and total work (r2 < 0.001). Conclusions iLOAD® is a valid smartphone app which can provide real-time feedback of the MV and total work completed in a set of multiple repetitions in the half squat exercise.https://peerj.com/articles/7372.pdfSmartphone applicationSquatTotal workVelocity-based training |
| spellingShingle | Evandro Claudino de Sá André Ricarte Medeiros André Santana Ferreira Amador García Ramos Danica Janicijevic Daniel Boullosa Validity of the iLOAD® app for resistance training monitoring PeerJ Smartphone application Squat Total work Velocity-based training |
| title | Validity of the iLOAD® app for resistance training monitoring |
| title_full | Validity of the iLOAD® app for resistance training monitoring |
| title_fullStr | Validity of the iLOAD® app for resistance training monitoring |
| title_full_unstemmed | Validity of the iLOAD® app for resistance training monitoring |
| title_short | Validity of the iLOAD® app for resistance training monitoring |
| title_sort | validity of the iload r app for resistance training monitoring |
| topic | Smartphone application Squat Total work Velocity-based training |
| url | https://peerj.com/articles/7372.pdf |
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