TY - JOUR AU - Kemper, Han C.G. A2 - Kemper, Han C.G. A2 - Verschuur, Robbert DB - BISp DP - BISp KW - Belastungsdauer KW - Bewegungsanalyse KW - Diagnostische Verfahren KW - Gehen KW - Herzfrequenz KW - Junge KW - Laufbandergometer KW - Laufen KW - Laufgeschwindigkeit KW - Messgerät KW - Messverfahren KW - Sauerstoffaufnahme KW - Schrittfrequenz KW - Schrittzahl KW - Sportmedizin KW - Testbewertung KW - Validität LA - eng TI - Validity and reliability of pedometers in habitual activity research TT - Validität und Reliabilität von Pedometern bei der Untersuchung gewohnheitsmässiger Aktivitäten PY - 1977 N2 - In 12-18 year old boys actual streprate on a treadmill was compared to the scores of two types of mechanical pedometers (Russian and German), attached to the waist. Both types show deviations from actual steprate in running at speeds of 8 and 10 km/h of ca. 5 (+/- 9 ). In walking or running at 6 km/h and in running at 14 km/h both types give an overestimation of ca. 8.5 (+/8). In walking at a speed of 2 and 4 km/h the scores are not reliable because of the big standard deviation of ca. 34 . Oxygen uptake (ml/kg) and heart rate (beats/min) increase more in running than in walking, actual steprate (steps/min) however increases less in running compared to walking. If pedometers register only during running they reflect actual steprate fairly good and give a good estimation of the change in oxygen uptake as speed gathers. L2 - https://dx.doi.org/10.1007/BF00421600 DO - 10.1007/BF00421600 SP - S. 71-82 SN - 1439-6319 JO - European journal of applied physiology IS - 1 VL - 37 M3 - Gedruckte Ressource M3 - Elektronische Ressource (online) ID - PU198001010195 ER -