Comparison of older adults' steps per day using an NL-1000 pedometer and two GT3X+ accelerometer filters
Gespeichert in:
| Deutscher übersetzter Titel: | Vergleich der von älteren Erwachsenen zurückgelegten Schritte pro Tag unter Verwendung eines NL-1000 Pedometers und zweier GT3X+ Akzelerometer-Filter |
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| Autor: | Barreira, Tiago V.; Brouillette, Robert M.; Foil, Heather C.; Keller, Jeffrey N.; Tudor-Locke, Catrine |
| Erschienen in: | Journal of aging and physical activity |
| Veröffentlicht: | 21 (2013), 4, S. 402-416, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
| Sprache: | Englisch |
| ISSN: | 1063-8652, 1543-267X |
| DOI: | 10.1123/japa.21.4.402 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU201401000331 |
| Quelle: | BISp |
Abstract des Autors
The purpose of this study was to compare the steps/d derived from the ActiGraph GT3X+ using the manufacturer’s default filter (DF) and low-frequency-extension filter (LFX) with those from the NL-1000 pedometer in an older adult sample. Fifteen older adults (61–82 yr) wore a GT3X+ (24 hr/day) and an NL-1000 (waking hours) for 7 d. Day was the unit of analysis (n = 86 valid days) comparing (a) GT3X+ DF and NL-1000 steps/d and (b) GT3X+ LFX and NL-1000 steps/d. DF was highly correlated with NL-1000 (r = .80), but there was a significant mean difference (–769 steps/d). LFX and NL-1000 were highly correlated (r = .90), but there also was a significant mean difference (8,140 steps/d). Percent difference and absolute percent difference between DF and NL-1000 were –7.4% and 16.0%, respectively, and for LFX and NL-1000 both were 121.9%. Regardless of filter used, GT3X+ did not provide comparable pedometer estimates of steps/d in this older adult sample. Verf.-Referat