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Open AccessArticle

Validation of Cardiorespiratory Fitness Measurements in Adolescents

1
School of Physical Therapy, Texas Woman’s University, 6700 Fannin, Houston, TX 77030, USA
2
Department of Kinesiology, Rice University, 6100 Main Street, Houston, TX 77005, USA
3
Department of Physical Therapy, UT Health San Antonio, 7703 Floyd Curl Dr. San Antonio, TX 78229, USA
*
Author to whom correspondence should be addressed.
J. Funct. Morphol. Kinesiol. 2019, 4(3), 44; https://doi.org/10.3390/jfmk4030044
Received: 28 June 2019 / Revised: 9 July 2019 / Accepted: 11 July 2019 / Published: 13 July 2019
Cardiorespiratory fitness (CRF) is an important indicator of adolescent cardiovascular well-being and future cardiometabolic health but not always feasible to measure. The purpose of this study was to estimate the concurrent validity of the non-exercise test (NET) for adolescents against the Progressive Aerobic Capacity Endurance Run (PACER®) and direct measures of VO2max as well as to examine the concurrent validity of the PACER® with a portable metabolic system (K4b2™). Forty-six adolescents (12–17 years) completed the NET prior to performing the PACER® while wearing the K4b2™. The obtained VO2max values were compared using linear regression, intra-class correlation (ICC), and Bland–Altman plots, and α was set at 0.05. The VO2max acquired directly from the K4b2™ was significantly correlated to the VO2max indirectly estimated from the NET (r = 0.73, p < 0.001, r2 = 0.53, ICC = 0.67). PACER® results were significantly related to the VO2max estimates from the NET (r = 0.81, p < 0.001, r2 = 0.65, ICC = 0.72). Direct measures from the K4b2™ were significantly correlated to the VO2max estimates from the PACER® (r = 0.87, p < 0.001, r2 = 0.75, ICC = 0.93). The NET is a valid measure of CRF in adolescents and can be used when an exercise test is not feasible. View Full-Text
Keywords: VO2max; PACER; non-exercise test VO2max; PACER; non-exercise test
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Migliano, P.; Kabiri, L.S.; Cross, M.; Butcher, A.; Frugé, A.; Brewer, W.; Ortiz, A. Validation of Cardiorespiratory Fitness Measurements in Adolescents. J. Funct. Morphol. Kinesiol. 2019, 4, 44.

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