Validity of the computer science and applications (CSA) activity monitor in children

Trost, S.G., Ward, D.S., Moorehead, S.M., Watson, P.D., Riner, W., & Burke, J.R. (1998) Validity of the computer science and applications (CSA) activity monitor in children. Medicine and Science in Sports and Exercise, 30(4), pp. 629-633.

View at publisher

Abstract

Purpose

The purpose of this study was to evaluate the validity of the CSA activity monitor as a measure of children's physical activity using energy expenditure (EE) as a criterion measure.

Methods

Thirty subjects aged 10 to 14 performed three 5-min treadmill bouts at 3, 4, and 6 mph, respectively. While on the treadmill, subjects wore CSA (WAM 7164) activity monitors on the right and left hips. (V) over dot O-2 was monitored continuously by an automated system. EE was determined by multiplying the average (V) over dot O-2 by the caloric equivalent of the mean respiratory exchange ratio.

Results

Repeated measures ANOVA indicated that both CSA monitors were sensitive to changes in treadmill speed. Mean activity counts from each CSA unit were not significantly different and the intraclass reliability coefficient for the two CSA units across all speeds was 0.87. Activity counts from both CSA units were strongly correlated with EE (r = 0.86 and 0.87, P < 0.001). An EE prediction equation was developed from 20 randomly selected subjects and cross-validated on the remaining 10. The equation predicted mean EE within 0.01 kcal.min(-1). The correlation between actual and predicted values was 0.93 (P < 0.01) and the SEE was 0.93 kcal.min(-1).

Conclusion

These data indicate that the CSA monitor is a valid and reliable tool for quantifying treadmill walking and running in children.

Impact and interest:

529 citations in Scopus
495 citations in Web of Science®
Search Google Scholar™

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 71972
Item Type: Journal Article
Refereed: Yes
Additional Information: ISI Document Delivery No.: ZH349
Times Cited: 431
Cited Reference Count: 28
Trost, SG Ward, DS Moorehead, SM Watson, PD Riner, W Burke, JR
Lippincott williams & wilkins
Philadelphia; <Go to ISI>://WOS:000073099200023>
Keywords: accelerometer, physical activity, exercise, energy expenditure, physical-activity, energy-expenditure, public-health, heart-rate, adolescents, accelerometer, fitness, motion, design, risk
DOI: 10.1097/00005768-199804000-00023
ISSN: 0195-9131
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Deposited On: 22 May 2014 01:59
Last Modified: 21 Jun 2017 11:02

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page