Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universität Bern
2019
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| _version_ | 1876485590382280704 |
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| author | Juliane Heydenreich |
| author_facet | Juliane Heydenreich |
| contents | Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls Juliane Heydenreich Yves Schutz Bengt Kayser Katarina Melzer Salud athletes exercise testing metabolic equivalent cardiorespiratory fitness Maximum oxygen consumption Submaximal step tests are often used for estimation of maximum oxygen consumption (VO2 max) in humans. The validity of the Actiheart step test for VO2 max estimation was not fully studied yet. Therefore, purpose of the study was to estimate VO2 max using the Actiheart step test and to compare the data with measured VO2 max in endurance trained athletes (ATH) and healthy non-athletes (CON). 68 ATH (54% men, 28.0±5.4 yrs, 20.9±1.7 kg∙m-2) and 63 CON (46% men, 27.6±5.1 yrs, 22.1±1.7 kg∙m-2) performed the Actiheart step test and a spiroergometry for assessment of VO2 max. In addition, resting metabolic rate (RMR; indirect calorimetry), maximum heart rate (HRmax; heart rate monitoring system during spiroergometry), and sleeping heart rate (SHR; Actiheart 6-day long term measurement) were determined. Validity of two different Actiheart software entry modes was assessed: (1) AHraw (estimated RMR [Schofield] and HRmax [Tanaka], SHR = 70 bpm) and (2) AHcomplete (measured RMR, HRmax, and SHR). Validity was investigated using linear regression (R2 and standard error of the estimate (SEE)) and repeated-measures ANOVA with a Bonferroni post-hoc correction. The level of significance was set to α=0.05. VO2 max estimated by AHraw was significant related to measured VO2 max in women CON (R2 =0.22; p<0.05), whereas when VO2 max was estimated by AHcomplete the relation was significant in women ATH and CON, and in men CON (R2 =0.17-0.24; p<0.05). AHraw significantly underestimated VO2 max in the total sample by 8% (51.4±10.2 vs. 55.9±7.6 ml∙kg-1∙min-1; p<0.0001), whereas no significant difference between AHcomplete and the criterion method was found (57.0±11.1 vs. 55.9±7.6 ml∙ kg-1∙min-1; p=0.26). The Actiheart step test is an acceptable tool for the estimation of VO2max if an error within 8% can be tolerated. However, accuracy of the VO2 max prediction is much improved when entering measured variables, such as RMR, SHR, and HRmax, into the software. 2019 artículo científico 2414-6641 https://www.redalyc.org/articulo.oa?id=677873369007 en http://www.redalyc.org/revista.oa?id=6778 Current Issues in Sport Science application/pdf Universität Bern Current Issues in Sport Science (Suiza) Vol.4 |
| format | Artículo científico |
| id | redalyc_677873369007 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Universität Bern |
| spellingShingle | Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls Juliane Heydenreich Salud athletes exercise testing metabolic equivalent cardiorespiratory fitness Maximum oxygen consumption Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls Juliane Heydenreich Yves Schutz Bengt Kayser Katarina Melzer Salud athletes exercise testing metabolic equivalent cardiorespiratory fitness Maximum oxygen consumption Submaximal step tests are often used for estimation of maximum oxygen consumption (VO2 max) in humans. The validity of the Actiheart step test for VO2 max estimation was not fully studied yet. Therefore, purpose of the study was to estimate VO2 max using the Actiheart step test and to compare the data with measured VO2 max in endurance trained athletes (ATH) and healthy non-athletes (CON). 68 ATH (54% men, 28.0±5.4 yrs, 20.9±1.7 kg∙m-2) and 63 CON (46% men, 27.6±5.1 yrs, 22.1±1.7 kg∙m-2) performed the Actiheart step test and a spiroergometry for assessment of VO2 max. In addition, resting metabolic rate (RMR; indirect calorimetry), maximum heart rate (HRmax; heart rate monitoring system during spiroergometry), and sleeping heart rate (SHR; Actiheart 6-day long term measurement) were determined. Validity of two different Actiheart software entry modes was assessed: (1) AHraw (estimated RMR [Schofield] and HRmax [Tanaka], SHR = 70 bpm) and (2) AHcomplete (measured RMR, HRmax, and SHR). Validity was investigated using linear regression (R2 and standard error of the estimate (SEE)) and repeated-measures ANOVA with a Bonferroni post-hoc correction. The level of significance was set to α=0.05. VO2 max estimated by AHraw was significant related to measured VO2 max in women CON (R2 =0.22; p<0.05), whereas when VO2 max was estimated by AHcomplete the relation was significant in women ATH and CON, and in men CON (R2 =0.17-0.24; p<0.05). AHraw significantly underestimated VO2 max in the total sample by 8% (51.4±10.2 vs. 55.9±7.6 ml∙kg-1∙min-1; p<0.0001), whereas no significant difference between AHcomplete and the criterion method was found (57.0±11.1 vs. 55.9±7.6 ml∙ kg-1∙min-1; p=0.26). The Actiheart step test is an acceptable tool for the estimation of VO2max if an error within 8% can be tolerated. However, accuracy of the VO2 max prediction is much improved when entering measured variables, such as RMR, SHR, and HRmax, into the software. 2019 artículo científico 2414-6641 https://www.redalyc.org/articulo.oa?id=677873369007 en http://www.redalyc.org/revista.oa?id=6778 Current Issues in Sport Science application/pdf Universität Bern Current Issues in Sport Science (Suiza) Vol.4 |
| title | Validity of the Actiheart step test for the estimation of maximum oxygen consumption in endurance athletes and healthy controls |
| topic | Salud athletes exercise testing metabolic equivalent cardiorespiratory fitness Maximum oxygen consumption |
| url | https://www.redalyc.org/articulo.oa?id=677873369007 |