Pedometer steps/min in physical education. Does the pedometer matter?

Autor/in	Scruggs, Philip W.
Titel	Pedometer steps/min in physical education. Does the pedometer matter? Gefälligkeitsübersetzung: Pedometer Schritte/min im Sportunterricht. Spielt das Pedometer eine Rolle?
Quelle	In: Journal of science and medicine in sport, 16 (2013) 1, S. 36-39 PDF als Volltext Link als defekt meldenVerfügbarkeit
Sprache	englisch
Dokumenttyp	online; gedruckt; Zeitschriftenaufsatz
ISSN	1440-2440; 1878-1861
DOI	10.1016/j.jsams.2012.05.011
Schlagwörter	Reliabilität; Untersuchungsmethode; Validität; Vergleichsuntersuchung; Aktivität; Körper (Biol); Sensorik; Messgenauigkeit; Schritt; Sportmedizin; Sportpädagogik; Sportunterricht; Analyse; Anzahl; Messinstrument
Abstract	Objectives The investigation sought to replicate previous Yamax physical education steps/min findings by quantifying physical activity via pedometry albeit with the Walk4Life (W4L) pedometer. Specifically, the objective was to determine steps/min cut point intervals for the 33% and 50% physical activity (i.e., percent of lesson time engaged in physical activity [%PA]) physical education guidelines via the W4L pedometer. Design Field-based criterion-referenced validation. Methods Data were collected from 75 lessons on 411 fifth- through twelfth-grade (Mage = 13.83 +/- 2.17 y) participants who had concurrently measured pedometer and behavioural observation data. The W4L and Yamax pedometer outcome measure was steps/min, and observation measure was %PA. Pearson r correlation and diagnostic (i.e., sensitivity, specificity, and receiver-operating characteristic [ROC] curve) tests were conducted. Results (a) Steps/min and %PA demonstrated a strong relationship (W4L, r = 0.96, p = 0.0001; Yamax, r = 0.96, p = 0.0001), (b) W4L pedometer steps/min accurately discriminated (ROC area under curve )= 98%) between achievement or non-achievement of %PA guidelines, (c) the W4L steps/min cut point intervals for the 33%PA guideline (55.0-59.5) were significantly lower than those found for the Yamax pedometer (60.8-65.0), and (d) a borderline overlap was found between W4L (75.7-79.5) and Yamax (79.1-85.8) steps/min cut point intervals for the 50%PA guideline. Conclusions W4L steps/min demonstrated a strong relationship with %PA, and outstanding accuracy for physical education physical activity guideline discrimination; however, steps/min values indicative of physical education physical activity guideline achievement is pedometer brand dependent, and should be considered for steps/min implementation and surveillance. Verf.-Referat.
Erfasst von	Bundesinstitut für Sportwissenschaft, Bonn
Update	2013/4