PMID- 25010675
OWN - NLM
STAT- MEDLINE
DCOM- 20150608
LR  - 20211021
IS  - 1543-2688 (Electronic)
IS  - 1065-8483 (Print)
IS  - 1065-8483 (Linking)
VI  - 30
IP  - 5
DP  - 2014 Oct
TI  - Assessment of gait kinetics using triaxial accelerometers.
PG  - 668-74
LID - 10.1123/jab.2014-0037 [doi]
AB  - Repeated durations of dynamic activity with high ground reaction forces (GRFs) 
      and loading rates (LRs) can be beneficial to bone health. To fully characterize 
      dynamic activity in relation to bone health, field-based measurements of gait 
      kinetics are desirable to assess free-living lower-extremity loading. The study 
      aims were to determine correlations of peak vertical GRF and peak vertical LR 
      with ankle peak vertical accelerations, and of peak resultant GRF and peak 
      resultant LR with ankle peak resultant accelerations, and to compare them to 
      correlations with tibia, thigh, and waist accelerations. GRF data were collected 
      as ten healthy subjects (26 [19-34] years) performed 8-10 walking trials at 
      velocities ranging from 0.19 to 3.05 m/s while wearing ankle, tibia, thigh, and 
      waist accelerometers. While peak vertical accelerations of all locations were 
      positively correlated with peak vertical GRF and LR (r(2) > .53, P < .001), ankle 
      peak vertical accelerations were the most correlated (r(2) > .75, P < .001). All 
      peak resultant accelerations were positively correlated with peak resultant GRF 
      and LR (r(2) > .57, P < .001), with waist peak resultant acceleration being the 
      most correlated (r(2) > .70, P < .001). The results suggest that ankle or waist 
      accelerometers give the most accurate peak GRF and LR estimates and could be 
      useful tools in relating physical activity to bone health.
FAU - Fortune, Emma
AU  - Fortune E
AD  - Department of Orthopedic Surgery, Mayo Clinic, Motion Analysis Laboratory, 
      Rochester, MN.
FAU - Morrow, Melissa M
AU  - Morrow MM
FAU - Kaufman, Kenton R
AU  - Kaufman KR
LA  - eng
GR  - K12 HD065987/HD/NICHD NIH HHS/United States
GR  - R01 AG034676/AG/NIA NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20140709
PL  - United States
TA  - J Appl Biomech
JT  - Journal of applied biomechanics
JID - 9315240
SB  - IM
MH  - *Acceleration
MH  - Accelerometry
MH  - Adult
MH  - Biomechanical Phenomena
MH  - Bone and Bones/*physiology
MH  - Female
MH  - Gait/*physiology
MH  - Humans
MH  - Lower Extremity/*physiology
MH  - Male
MH  - Signal Processing, Computer-Assisted
PMC - PMC4332389
MID - NIHMS658617
COIS- Conflict of Interest Disclosure: None of the authors has a conflict of interest 
      to declare, and all authors were involved in the study design, data collection 
      and interpretation, and contributed to the writing of the manuscript. This 
      manuscript is not currently being considered for publication by another journal.
EDAT- 2014/07/11 06:00
MHDA- 2015/06/09 06:00
PMCR- 2015/02/18
CRDT- 2014/07/11 06:00
PHST- 2014/07/11 06:00 [entrez]
PHST- 2014/07/11 06:00 [pubmed]
PHST- 2015/06/09 06:00 [medline]
PHST- 2015/02/18 00:00 [pmc-release]
AID - 2014-0037 [pii]
AID - 10.1123/jab.2014-0037 [doi]
PST - ppublish
SO  - J Appl Biomech. 2014 Oct;30(5):668-74. doi: 10.1123/jab.2014-0037. Epub 2014 Jul 
      9.