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Direct linkLowry, R. Stephan; Wagner, Dale R.; Bigler, Megan – Measurement in Physical Education and Exercise Science, 2021
BodyMetrix BX2000 A-mode ultrasound software offers nine options for estimating body fat percentage (%BF) from fat thickness measurements. These formulas were evaluated against %BF estimated from air displacement plethysmography in a sample of 42 men. Compared to the Bod Pod, three of the nine equations -- Jackson and Pollock 3 site (JP3), Jackson…
Descriptors: Body Composition, Measurement Equipment, Measurement Techniques, Error of Measurement
Zavorsky, Gerald S. – Measurement in Physical Education and Exercise Science, 2010
Measurement error is a common problem in several fields of research such as medicine, physiology, and exercise science. The standard deviation of repeated measurements on the same person is the measurement error. One way of presenting measurement error is called the repeatability, which is 2.77 multiplied by the within subject standard deviation.…
Descriptors: Physiology, Exercise Physiology, Medicine, Error of Measurement
Effects of Ventilation on Segmental Bioimpedance Spectroscopy Measures Using Generalizability Theory
Turner, A. Allan; Lozano-Nieto, Albert; Bouffard, Marcel – Measurement in Physical Education and Exercise Science, 2010
The purpose of this study was to examine the effect of three ventilation conditions (i.e., normal, regimented, and no-ventilation) on the reproducibility of bioimpedance scores in humans for the forearm and trunk segments. One hundred able-bodied North American men and women, from 18 to 71 years of age, volunteered as participants. The…
Descriptors: Ventilation, Generalizability Theory, Spectroscopy, Scores
