title: Combined triaxial accelerometry and heart rate telemetry for the physiological characterization of Latin dance in non-professional adults.
abstract: The purpose of this study was to value calibrate, cross-validate, and determine the reliability of a combined triaxial accelerometry and heart rate telemetry technique for characterizing the physiological and physical activity parameters of Latin dance. Twenty-two non-professional adult Latin dancers attended two laboratory-based dance trials each. After familiarization and a standardized warm-up, a multi-stage (3 x 5-minute) incremental (based on song tempo) Afro-Cuban salsa choreography was performed while following a video displayed on a projection screen. Data were collected with a portable indirect calorimeter, a heart rate telemeter, and wrist-, hip-, and ankle-mounted ActiGraph GT3X+ accelerometers. Prediction equations for energy expenditure and step count were value calibrated using forced entry multiple regression and cross-validated using a delete-one jackknife approach with additional Bland-Altman analysis. The average dance intensity reached 6.09 ± 0.96 kcal/kg/h and demanded 45.9 ± 11.3% of the heart rate reserve. Predictive ability of the derived models was satisfactory, where R(2) = 0.80; SEE = 0.44 kcal/kg/h and R(2) = 0.74; SEE = 3 step/min for energy expenditure and step count, respectively. Dependent t-tests indicated no differences between predicted and measured values for both energy expenditure (t65 = -0.25, p = 0.80) and step count (t65 = -0.89, p = 0.38). The 95% limits of agreement for energy expenditure and step count were -0.98 to 0.95 kcal/kg/h and -7 to 7 step/min, respectively. Latin dance to salsa music elicits physiological responses representative of moderate to vigorous physical activity, and a wrist-worn accelerometer with simultaneous heart rate measurement constitutes a valid and reliable technique for the prediction of energy expenditure and step count during Latin dance.
authors.affiliation: Faculty of Science, Engineering and Computing, Kingston University, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK. domenep@gmail.com.
authors.forename: Pablo A
authors.initials: PA
authors.lastname: Domene
authors.affiliation: Institute for Clinical Exercise and Health Science, University of the West of Scotland, Hamilton, UK.
authors.forename: Chris
authors.initials: C
authors.lastname: Easton
mesh_terms: D061725:Accelerometry; D000328:Adult; D002151:Calorimetry; D003615:Dancing / Q000502:physiology*; D004734:Energy Metabolism; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D013686:Telemetry