The relationship between pedometer-determined ambulatory activity and body composition variables

Tudor‐Locke, Catrine; Ainsworth, Barbara E.; Whitt, Melicia C.; Thompson, Raymond W.; Addy, Cheryl L.; Jones, Deborah

doi:10.1038/sj.ijo.0801783

Cited by 169 publications

(131 citation statements)

References 43 publications

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“…5,8,20,21 The step counts observed in the current study are also similar to those observed in a recent study using Finish adults, 22 in which a control group, continuing with their normal daily routine, reported a mean daily step count of approximately 9500 steps/day. 22 Using data from the National Health and Nutrition Examination Survey (NHANES), in 2002 the prevalence of obesity in the US was reported to be 30.6%, 23 in comparison with the 24% obesity prevalence seen in UK adults in 2004.…”

Section: Discussionsupporting

confidence: 88%

Four-week pedometer-determined activity patterns in normal weight and overweight UK adults

2006

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Objective: To assess pedometer-determined physical activity levels and activity patterns in a sample of free-living normal weight and overweight UK adults. Design: Pedometer-based 4-week observational study. Participants: One hundred and twenty-two healthy participants, recruited from two regions in the UK, classified as normal weight (33 females and 26 males) or overweight (31 females and 32 males), in the age range of 18 to 65 years, completed the study. Measurements: Daily step counts were measured using a Yamax SW-200 pedometer, and were then recorded in an activity log. Comparisons were made between activity patterns occurring over different days of the week for the normal weight and overweight groups. Measurements of height, weight and percentage body fat, by bioelectrical impedance, were taken pre-and post-study. Results: A consistent reduction in activity was observed on a Sunday in the overweight group, and mean daily step counts accumulated on Sundays were significantly lower, by an average of 2221 steps/day, when compared with all other days of the week (all Po0.001). In comparison, no day-of-the-week effect was observed in the normal weight group. Mean step counts reported on each day of the week did not differ significantly between the two groups, with the exception of Sunday when the overweight group reported significantly fewer steps than the normal weight participants (8093 versus 10 538, Po0.001). Conclusions: Activity levels dropped dramatically in the sample of overweight adults on a Sunday. Simple instructions to at-risk individuals, to increase their general activity levels on a Sunday, via general practitioners and public health messages could prove to be a subtle, but effective, strategy to tackle obesity.

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Section: Discussionsupporting

confidence: 88%

Four-week pedometer-determined activity patterns in normal weight and overweight UK adults

2006

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“…Moreover, step rate in overweight and obese individuals was lower than normal-weight individuals and there was a significant correlation between BMI and step rate (r ¼ À0.093; P ¼ 0.009). Lower BMI in individuals whose step rates are o6000, 33 lower step rate in obese 34 and the negative correlation [33][34][35][36] were also reported in North American.…”

Section: Physical Activity and Obesity M Yoshioka Et Almentioning

confidence: 52%

Long-period accelerometer monitoring shows the role of physical activity in overweight and obesity

et al. 2005

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CONTEXT: Physical activity (PA) plays an important role in obesity. A new accelerometer has been developed to assess total energy expenditure as well as PA. OBJECTIVE: To investigate the association of PA with overweight and obesity in Japanese men and women, a large crosssectional study was performed using a single-axis accelerometer. DESIGN, SETTING AND PARTICIPANTS: Population-based cross-sectional study of Japanese 18-84 y of age. Height, body weight and PA were measured in 400 male and 388 female Japanese volunteers from 1999 to 2000. The outcome measurements were overweight and obesity, which are defined as a body mass index Z25 kg/m 2 . PA was measured for 1 to 4 weeks and was then categorized into three activity levels, which were defined as light, moderate and vigorous PA. RESULTS: Prevalence of overweight and obesity was 22.3%. Number of steps and time spent in moderate and vigorous PA per day were lower in overweight and obese individuals. No difference was found in time spent in light PA. Individuals who are in the 4th and 5th quintile of moderate and vigorous PA showed a significantly lower body mass index. When odd ratios (ORs) of overweight and obesity estimated by logistic regression were used as effect measures, overweight and obesity were negatively associated with vigorous PA (ORs ¼ 0.91). CONCLUSION: These results indicate that overweight and obese individuals have a lower step rate and are spending less time for moderate to vigorous PA. Participation in vigorous PA is an important predictor of overweight and obesity.

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“…To our knowledge, no information is available from thoroughly examining the relationship between BMI or body composition, i.e. FFM index (FFMI, FFM divided by height squared), FM index (FMI, FM divided by height squared) or body fat percentage (%BF) and physical activity in adult women, particularly in Asian populations.Recently, many cross-sectional studies on adult women in Western countries and Japan reported that BMI and %BF were inversely associated with daily walking steps (9,10) . Furthermore, %BF was negatively associated with the duration of vigorous-intensity physical activity assessed by accelerometry (11) .…”

mentioning

confidence: 99%

Relation of body composition to daily physical activity in free-living Japanese adult women

et al. 2011

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The objective of the present study was to investigate the relationship between the indices of body size such as BMI, fat-free mass index (FFMI, FFM/height 2 ), fat mass index (FMI, FM/height 2 ), and body fat percentage (%BF), and physical activities assessed by the doublylabelled water (DLW) method and an accelerometer in free-living Japanese adult women. We conducted a cross-sectional study in 100 female subjects ranging in age from 31 to 69 years. Subjects were classified in quartiles of BMI, FFMI, FMI and %BF. Daily walking steps and the duration of light to vigorous physical activity were simultaneously assessed by an accelerometer for the same period as the DLW experiment. Only physical activity-related energy expenditure (PAEE)/FFM and PAEE/body weight (BW) decreased in the highest quartile of BMI. Physical activity level, PAEE/FFM and PAEE/BW decreased in the highest quartile of FMI and %BF, whereas they were not different among quartiles of FFMI. Daily walking steps and the duration of moderate-and vigorous-intensity physical activities decreased or tended to decrease in the highest quartile of FMI and %BF, but did not differ among quartiles of FFMI and BMI. These results clearly showed that Japanese adult women with higher fat deposition obviously had a low level of physical activities assessed by both the DLW method and accelerometry, but those with larger BMI had lower PAEE/FFM and PAEE/BW only. Our data suggest that the relationship between obesity and daily physical activities should be discussed using not only BMI but also FMI or %BF.Key words: Body composition: Physical activity: Doubly-labelled water: Accelerometry: Japanese adult women Obesity is caused by an imbalance between energy intake and energy expenditure. Obese individuals are often considered to be physically less active than normal-weight individuals. However, most cross-sectional studies using the doubly-labelled water (DLW) method, which is known to be the most accurate method of measuring energy expenditure in free-living conditions (1,2) , have reported that physical activity level (PAL; the ratio of total energy expenditure(TEE):BMR) did not differ among BMI categories (3 -6) . The reason for the lack of this association may be partly explained by differences in the distribution of fat-free mass (FFM) and fat mass (FM). PAL appears to be negatively associated with FM (7,8) , but not correlated with FFM (5) . However, these studies have only reported information on the association between PAL and either FM or FFM, which are not adjusted for body size, such as body height. To our knowledge, no information is available from thoroughly examining the relationship between BMI or body composition, i.e. FFM index (FFMI, FFM divided by height squared), FM index (FMI, FM divided by height squared) or body fat percentage (%BF) and physical activity in adult women, particularly in Asian populations.Recently, many cross-sectional studies on adult women in Western countries and Japan reported that BMI and %BF were inversely associate...

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The relationship between pedometer-determined ambulatory activity and body composition variables

Cited by 169 publications

References 43 publications

Four-week pedometer-determined activity patterns in normal weight and overweight UK adults

Four-week pedometer-determined activity patterns in normal weight and overweight UK adults

Long-period accelerometer monitoring shows the role of physical activity in overweight and obesity

Relation of body composition to daily physical activity in free-living Japanese adult women

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