Miller D J, Freedson P S, Kline G M
Department of Exercise Science, University of Massachusetts at Amherst 01003.
Med Sci Sports Exerc. 1994 Mar;26(3):376-82.
The purpose of this study was to compare the physical activity levels of physical therapists using five activity questionnaires and one electronic motion sensor (Caltrac). Thirty-three physical therapists (26 female, seven male) were monitored for seven consecutive days. The Caltrac data were compared with five questionnaires, including the Baecke (Baecke); Godin and Shephard (Godin); Ross and Jackson (NASA); 3-d record (3-d); and 7-d recall (7-d). A significant (P < 0.01) Spearman rank order correlation coefficient was observed between the Caltrac reading and the 7-d recall (r = 0.79). A significant correlation was also observed between the Caltrac and the Godin (r = 0.45, P < 0.01). Three of the questionnaires were also significantly (P < 0.01) correlated with each other, including the NASA with the Baecke (r = 0.52), the NASA with the Godin (r = 0.54), and the Godin with the Baecke (r = 0.61). The 3-d record was not significantly correlated with any of the other measures. The strong, significant correlation observed between the Caltrac data and the 7-d recall suggests adequate validity for the 7-d recall. The 7-d recall questionnaire would be quicker, easier, and less expensive to use in a large population study than the Caltrac.
本研究的目的是使用五份活动问卷和一个电子运动传感器（Caltrac）比较物理治疗师的身体活动水平。对33名物理治疗师（26名女性，7名男性）连续监测了7天。将Caltrac的数据与五份问卷进行比较，包括贝克（Baecke）问卷；戈丁和谢泼德（Godin）问卷；罗斯和杰克逊（NASA）问卷；3天记录（3-d）问卷；以及7天回忆（7-d）问卷。在Caltrac读数与7天回忆问卷之间观察到显著（P < 0.01）的斯皮尔曼等级相关系数（r = 0.79）。在Caltrac与戈丁问卷之间也观察到显著相关性（r = 0.45，P < 0.01）。其中三份问卷之间也显著（P < 0.01）相关，包括NASA问卷与贝克问卷（r = 0.52）、NASA问卷与戈丁问卷（r = 0.54）以及戈丁问卷与贝克问卷（r = 0.61）。3天记录问卷与其他任何测量方法均无显著相关性。在Caltrac数据与7天回忆问卷之间观察到的强显著相关性表明7天回忆问卷具有足够的效度。在大规模人群研究中，7天回忆问卷比Caltrac使用起来更快、更容易且成本更低。
