Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system
Abstract In patients with dropped head syndrome (DHS), cervical malalignment is one of the risk factors for impaired horizontal gaze and restrictions to ambulation. The characteristics of gait in patients with DHS have not been clarified biomechanically from the viewpoint of dynamic alignment and lo...
Main Authors: | , , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Nature Publishing Group
2021-09-01
|
Series: | Scientific Reports |
Online Access: | https://doi.org/10.1038/s41598-021-97329-w |
id |
doaj-21a1ecf3482d4ae59b7fb125ee611bd0 |
---|---|
record_format |
Article |
spelling |
doaj-21a1ecf3482d4ae59b7fb125ee611bd02021-09-19T11:34:10ZengNature Publishing GroupScientific Reports2045-23222021-09-0111111010.1038/s41598-021-97329-wDynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis systemTatsuya Igawa0Ken Ishii1Akifumi Suzuki2Hideto Ui3Ryunosuke Urata4Norihiro Isogai5Yutaka Sasao6Makoto Nishiyama7Haruki Funao8Department of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareDepartment of Rehabilitation, International University of Health and Welfare Mita HospitalDepartment of Rehabilitation, International University of Health and Welfare Mita HospitalDepartment of Rehabilitation, International University of Health and Welfare Mita HospitalDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareDepartment of Orthopaedic Surgery, School of Medicine, International University of Health and WelfareAbstract In patients with dropped head syndrome (DHS), cervical malalignment is one of the risk factors for impaired horizontal gaze and restrictions to ambulation. The characteristics of gait in patients with DHS have not been clarified biomechanically from the viewpoint of dynamic alignment and lower limb kinematics. This study aimed to clarify kinematic and kinetic differences during level walking in patients with DHS compared to the healthy elderly. Twelve patients with DHS and healthy elderly individuals performed level walking at a self-selected speed. Spatiotemporal, kinematic, and kinetic data were recorded using a three-dimensional motion analysis system. Statistical analysis was performed to compare these data between the two groups, respectively. Compared with the healthy elderly, stride length and peak hip-joint extension angle in patients with DHS were significantly shorter and smaller. The thorax was also significantly tilted backwards. Peak ankle-joint plantar-flexion moment was significantly smaller despite larger dorsiflexion angle compared with the healthy elderly. The walking of DHS patients demonstrated kinematic and kinetic characteristics of the lower limb joints and alignment of the thorax and pelvis corresponding to their short stride and walking speed.https://doi.org/10.1038/s41598-021-97329-w |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tatsuya Igawa Ken Ishii Akifumi Suzuki Hideto Ui Ryunosuke Urata Norihiro Isogai Yutaka Sasao Makoto Nishiyama Haruki Funao |
spellingShingle |
Tatsuya Igawa Ken Ishii Akifumi Suzuki Hideto Ui Ryunosuke Urata Norihiro Isogai Yutaka Sasao Makoto Nishiyama Haruki Funao Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system Scientific Reports |
author_facet |
Tatsuya Igawa Ken Ishii Akifumi Suzuki Hideto Ui Ryunosuke Urata Norihiro Isogai Yutaka Sasao Makoto Nishiyama Haruki Funao |
author_sort |
Tatsuya Igawa |
title |
Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
title_short |
Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
title_full |
Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
title_fullStr |
Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
title_full_unstemmed |
Dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
title_sort |
dynamic alignment changes during level walking in patients with dropped head syndrome: analyses using a three-dimensional motion analysis system |
publisher |
Nature Publishing Group |
series |
Scientific Reports |
issn |
2045-2322 |
publishDate |
2021-09-01 |
description |
Abstract In patients with dropped head syndrome (DHS), cervical malalignment is one of the risk factors for impaired horizontal gaze and restrictions to ambulation. The characteristics of gait in patients with DHS have not been clarified biomechanically from the viewpoint of dynamic alignment and lower limb kinematics. This study aimed to clarify kinematic and kinetic differences during level walking in patients with DHS compared to the healthy elderly. Twelve patients with DHS and healthy elderly individuals performed level walking at a self-selected speed. Spatiotemporal, kinematic, and kinetic data were recorded using a three-dimensional motion analysis system. Statistical analysis was performed to compare these data between the two groups, respectively. Compared with the healthy elderly, stride length and peak hip-joint extension angle in patients with DHS were significantly shorter and smaller. The thorax was also significantly tilted backwards. Peak ankle-joint plantar-flexion moment was significantly smaller despite larger dorsiflexion angle compared with the healthy elderly. The walking of DHS patients demonstrated kinematic and kinetic characteristics of the lower limb joints and alignment of the thorax and pelvis corresponding to their short stride and walking speed. |
url |
https://doi.org/10.1038/s41598-021-97329-w |
work_keys_str_mv |
AT tatsuyaigawa dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT kenishii dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT akifumisuzuki dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT hidetoui dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT ryunosukeurata dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT norihiroisogai dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT yutakasasao dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT makotonishiyama dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem AT harukifunao dynamicalignmentchangesduringlevelwalkinginpatientswithdroppedheadsyndromeanalysesusingathreedimensionalmotionanalysissystem |
_version_ |
1717375666577473536 |