PMID- 28736080
OWN - NLM
STAT- MEDLINE
DCOM- 20180129
LR  - 20181202
IS  - 1873-2380 (Electronic)
IS  - 0021-9290 (Linking)
VI  - 61
DP  - 2017 Aug 16
TI  - The effect of ankle foot orthosis alignment on walking in individuals treated for 
      traumatic lower extremity injuries.
PG  - 51-57
LID - S0021-9290(17)30347-0 [pii]
LID - 10.1016/j.jbiomech.2017.06.037 [doi]
AB  - Limb salvage surgeries are performed to treat a variety of lower limb pathologies 
      and traumatic injuries. Individuals who have undergone limb salvage surgeries may 
      require an ankle foot orthosis (AFO) to compensate for limb impairments and 
      restore walking ability. Understanding the effects of AFO design parameters on 
      gait biomechanics is important to refine AFO prescription criteria. In this study 
      sagittal plane kinematic and kinetic data, muscle activity and alignment 
      preference were examined as individuals treated for traumatic lower extremity 
      injuries (N=12) walked over level ground with Plantarflexed (PF), Neutral, and 
      Dorsiflexed (DF) aligned AFOs. A PF alignment resulted in earlier center of 
      pressure progression (p<0.007) and a resulting decrease in both internal knee 
      extensor moment (p<0.001) and quadriceps and soleus muscle activity (p<0.014) 
      compared to the Neutral and DF alignments without affecting the lower limb 
      support moment. A clear alignment preference was observed, with eight 
      participants preferring the PF over the Neutral and DF alignments. The increase 
      in internal knee extensor moment between the PF and DF alignments in the present 
      study is consistent with previous investigations in other patient populations, 
      suggesting a more DF aligned AFO may affect the knee joint moment similarly 
      across patient populations. The results of this study suggest AFO alignment is an 
      important design parameter that affects ankle and knee joint moments and muscle 
      activity and should be carefully considered during AFO design and clinical 
      fitting.
CI  - Copyright (c) 2017 Elsevier Ltd. All rights reserved.
FAU - Brown, Starr E
AU  - Brown SE
AD  - Center for the Intrepid, Department of Rehabilitation Medicine, Brooke Army 
      Medical Center, JBSA Fort Sam Houston, TX, United States. Electronic address: 
      starrekobrown@gmail.com.
FAU - Russell Esposito, Elizabeth
AU  - Russell Esposito E
AD  - Center for the Intrepid, Department of Rehabilitation Medicine, Brooke Army 
      Medical Center, JBSA Fort Sam Houston, TX, United States; Extremity Trauma and 
      Amputation Center of Excellence, United States.
FAU - Wilken, Jason M
AU  - Wilken JM
AD  - Center for the Intrepid, Department of Rehabilitation Medicine, Brooke Army 
      Medical Center, JBSA Fort Sam Houston, TX, United States; Extremity Trauma and 
      Amputation Center of Excellence, United States.
LA  - eng
PT  - Journal Article
DEP - 20170705
PL  - United States
TA  - J Biomech
JT  - Journal of biomechanics
JID - 0157375
SB  - IM
MH  - Adult
MH  - *Ankle
MH  - Biomechanical Phenomena
MH  - Female
MH  - Foot Injuries/*physiopathology/*therapy
MH  - *Foot Orthoses
MH  - Humans
MH  - Male
MH  - Muscle, Skeletal/physiology/physiopathology
MH  - Rotation
MH  - *Walking
OTO - NOTNLM
OT  - EMG
OT  - Gait biomechanics
OT  - Limb salvage
OT  - Support moment
EDAT- 2017/07/25 06:00
MHDA- 2018/01/30 06:00
CRDT- 2017/07/25 06:00
PHST- 2017/01/03 00:00 [received]
PHST- 2017/06/20 00:00 [revised]
PHST- 2017/06/29 00:00 [accepted]
PHST- 2017/07/25 06:00 [pubmed]
PHST- 2018/01/30 06:00 [medline]
PHST- 2017/07/25 06:00 [entrez]
AID - S0021-9290(17)30347-0 [pii]
AID - 10.1016/j.jbiomech.2017.06.037 [doi]
PST - ppublish
SO  - J Biomech. 2017 Aug 16;61:51-57. doi: 10.1016/j.jbiomech.2017.06.037. Epub 2017 
      Jul 5.