Background

The age-related decline in physical activity during adolescence is well documented; however, little is known about differences in physical activity among early, average, and late maturing adolescents. The purpose of this study was to examine the relationship between maturity status and physical activity among 167 adolescents who were 13-14 years old. The maturity offset was derived and biologic...

BACKGROUND We evaluated a pedometer-based community intervention under real-world conditions. METHODS Participants (n=559) provided demographic and health information using surveys and steps/d at baseline and during the last week the participants were in the program. A 1-year follow-up was conducted, but in keeping with real-world conditions, no incentives were offered to participate. RESUL...

BACKGROUND Currently, little is known about physical activity patterns in pregnancy with prior estimates predominantly based on subjective assessment measures that are prone to error. Given the increasing obesity rates and the importance of physical activity in pregnancy, we evaluated the relationship and agreement between subjective and objective physical activity assessment tools to inform re...

BACKGROUND The purpose of this study was to compare physical activity assessed by monitoring devices and questionnaires with the criterion method of physical activity using doubly labeled water (DLW) in free-living peripheral arterial occlusive disease (PAOD) patients. METHODS Twenty-two older nonsmoking PAOD patients with intermittent claudication (age = 68.7 +/- 7.3 years, ankle/brachial in...

OBJECTIVES The aim of this study was to examine the multi-instrument assessment of physical activity in female office workers. MATERIAL AND METHODS Fifty healthy women (age (mean ± standard deviation): 34.8±5.9 years, body height: 158±0.4 cm, body weight: 61.8±7.5 kg, body mass index: 24.6±2.7 kg/m2) workers from the same workplace volunteered to participate in the study. Physical ...

OBJECTIVES This paper compares multiple measures of walking in two studies, and the second study compares how well Theory of Planned Behaviour (TPB) constructs perform in predicting these different measures. METHODS In Study 1, 41 participants wore a New Lifestyles NL-2000 pedometer for 1 week. Subsequently, participants completed a questionnaire containing measures of the TPB constructs and ...

BACKGROUND Physical activity (PA) is complex and a difficult behavior to assess as there is no ideal assessment tool(s) that can capture all contexts of PA. Therefore, it is important to understand how different assessment tools rank individuals. We examined the extent to which self-report and direct assessment PA tools yielded the same ranking of PA levels. METHODS PA levels were measured by...

BACKGROUND The validity of common pedometer steps/min guidelines for 1st-12th grade physical education physical activity (PA) recommendations (ie, 33% and 50% PA) was investigated. METHODS Data sets from previous research, where physical education PA was quantified via pedometry, were combined. Participants (1st-12th grade, N = 1152) with concurrent steps/min and observed %PA scores were incl...

This study examined sources of variability in habitual physical activity of children, and the minimum number of days required for estimating children's habitual physical activity levels using pedometers. A total of 31 children wore two pedometers during five weekdays and four weekend days. A two random facet completely crossed design was conducted with two-way analysis of variances across weekd...