PMID- 31506039
OWN - NLM
STAT- MEDLINE
DCOM- 20200107
LR  - 20200107
IS  - 1466-447X (Electronic)
IS  - 0264-0414 (Linking)
VI  - 37
IP  - 23
DP  - 2019 Dec
TI  - The use of the intensity gradient and average acceleration metrics to explore 
      associations with BMI z-score in children.
PG  - 2751-2758
LID - 10.1080/02640414.2019.1664536 [doi]
AB  - This study used the intensity gradient (IG) and average acceleration metrics to 
      describe children's activity profiles and explore associations with body mass 
      index (BMI) z-score. Two hundred and forty-six children (n = 138 girls) aged 
      9.6 +/- 1.4 years wore a wrist-mounted ActiGraph wGT3X-BT accelerometer for 7 days 
      on their non-dominant wrist. Physical activity (PA) metrics captured included: 
      the IG which describes the intensity distribution of accelerations across the 
      24 h monitoring period; average acceleration which provides a measure of the 
      volume of activity; total moderate-to-vigorous PA (MVPA) and inactive time. 
      Acceleration was averaged over 5s epochs. Finally, BMI z-score was calculated for 
      each participant. Average acceleration was negatively associated with BMI z-score 
      (p < 0.05) independent of age and gender but not IG. The IG was negatively 
      associated with BMI z-score independent of potential correlates and average 
      acceleration. Total MVPA was not associated with BMI-z score. The IG and average 
      acceleration metrics may be used to explore the independent or cumulative effects 
      of the volume and intensity distribution of activity upon measures of health and 
      well-being in children to inform specific activity recommendations.
FAU - Buchan, Duncan S
AU  - Buchan DS
AD  - School of Health and Life Sciences, Institute of Clinical Exercise and Health 
      Science , South Lanarkshire , Scotland.
FAU - McLellan, Gillian
AU  - McLellan G
AD  - School of Health and Life Sciences, Institute of Clinical Exercise and Health 
      Science , South Lanarkshire , Scotland.
FAU - Donnelly, Samantha
AU  - Donnelly S
AD  - School of Health and Life Sciences, Institute of Clinical Exercise and Health 
      Science , South Lanarkshire , Scotland.
FAU - Arthur, Rosie
AU  - Arthur R
AD  - School of Health and Life Sciences, Institute of Clinical Exercise and Health 
      Science , South Lanarkshire , Scotland.
LA  - eng
PT  - Journal Article
DEP - 20190910
PL  - England
TA  - J Sports Sci
JT  - Journal of sports sciences
JID - 8405364
SB  - IM
MH  - Acceleration
MH  - Actigraphy/instrumentation
MH  - *Body Mass Index
MH  - Child
MH  - Cross-Sectional Studies
MH  - Exercise/*physiology
MH  - Female
MH  - Fitness Trackers
MH  - Humans
MH  - Male
MH  - Regression Analysis
MH  - Running/physiology
MH  - Sedentary Behavior
MH  - Walking Speed/physiology
OTO - NOTNLM
OT  - ActiGraph
OT  - accelerometer
OT  - activity metrics
OT  - raw acceleration
OT  - wrist-worn
EDAT- 2019/09/12 06:00
MHDA- 2020/01/08 06:00
CRDT- 2019/09/12 06:00
PHST- 2019/09/12 06:00 [pubmed]
PHST- 2020/01/08 06:00 [medline]
PHST- 2019/09/12 06:00 [entrez]
AID - 10.1080/02640414.2019.1664536 [doi]
PST - ppublish
SO  - J Sports Sci. 2019 Dec;37(23):2751-2758. doi: 10.1080/02640414.2019.1664536. Epub 
      2019 Sep 10.