PMID- 22039131 OWN - NLM STAT- MEDLINE DCOM- 20120222 LR - 20221207 IS - 1543-5474 (Electronic) IS - 1543-3080 (Linking) VI - 8 IP - 8 DP - 2011 Nov TI - Accuracy of multisensor activity monitors in normal versus high BMI African American children. PG - 1124-34 AB - BACKGROUND: Overweight children show different movement patterns during walking than normal-weight children, suggesting the accuracy of multisensory activity monitors may differ in these groups. METHODS: Eleven normal and 15 high BMI African American children walked at 2, 4, 5, and 6 km/h on a treadmill wearing the Intelligent Device for Energy Expenditure and Activity (IDEEA) and SenseWear (SW). Accuracy was determined using indirect calorimetry and manually counted steps as references. RESULTS: For IDEEA, no significant differences in accuracy were observed between BMI groups for energy expenditure (EE), but differences were significant by speed (+15% at 2 km/h to -10% at 6 km/h). For SW, EE accuracy was significantly different for high (+21%) versus normal BMI girls (-13%) at 2 km/h. For high BMI girls, EE was overestimated at low speed and underestimated at higher speeds. Underestimations in steps did not differ by BMI group at 4 to 6 km/h, but were significantly larger at 2 km/h than at the other speeds for all groups with IDEEA, and for normal BMI children with SW. CONCLUSIONS: Similar accuracies during walking may be expected in normal and overweight children using IDEEA and SW. Both monitors showed small errors for steps provided speed exceeded 2 km/h. FAU - Arvidsson, Daniel AU - Arvidsson D AD - Center for Primary Health Care Research, Institution for Clinical Sciences, Malmo, Sweden. FAU - Fitch, Mark AU - Fitch M FAU - Hudes, Mark L AU - Hudes ML FAU - Fleming, Sharon E AU - Fleming SE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Validation Study PL - United States TA - J Phys Act Health JT - Journal of physical activity & health JID - 101189457 SB - IM MH - Adipose Tissue MH - Black or African American MH - Body Mass Index MH - California MH - Child MH - Energy Metabolism/*physiology MH - Female MH - Humans MH - Male MH - Monitoring, Physiologic/*instrumentation/methods MH - Movement/physiology MH - Overweight/ethnology/*physiopathology MH - Reproducibility of Results MH - Walking/*physiology/statistics & numerical data EDAT- 2011/11/01 06:00 MHDA- 2012/02/23 06:00 CRDT- 2011/11/01 06:00 PHST- 2011/11/01 06:00 [entrez] PHST- 2011/11/01 06:00 [pubmed] PHST- 2012/02/23 06:00 [medline] AID - 10.1123/jpah.8.8.1124 [doi] PST - ppublish SO - J Phys Act Health. 2011 Nov;8(8):1124-34. doi: 10.1123/jpah.8.8.1124.