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Upper body 3-dimensional kinematics during gait in psychotic patients: a pilot-study
Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper, Radiofysik.ORCID-id: 0000-0003-3363-7414
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2012 (Engelska)Ingår i: Experimental Brain Research, ISSN 0014-4819, E-ISSN 1432-1106, Vol. 221, nr 4, s. 393-401Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Gait is recognized as a key item related to mental function. Anomalous gait in psychotic individuals has been described for the lower extremities, whereas irregularities for upper body dynamics are not described, explained or verified with unbiased methods. Reduced walking velocity and increased somatic tension defined in this patient category may influence upper body dynamics during gait. The aim of this pilot-study was to describe upper body kinematics and investigate the biomechanical association with walking velocity and muscle tension. Twelve inpatients in a psychiatric ward with first-episode psychosis and 18 healthy control subjects walked at different self-chosen velocities. Movement and walking velocity were registered, and 3D kinematics was analysed for thorax and shoulder joint. Time-synchronized EMG from the trapezius muscle, chosen as indicator for general somatic tension, was analysed for maximal amplitude and variability. Results showed that patients walked with reduced arm swing at the shoulder joint and increased lateral thorax movements. Thorax rotations about the vertical axis, walking velocity and EMG measures were similar in patients and healthy subjects. The present study could not provide a biomechanical explanation for kinematic findings based on walking velocity or somatic tension.

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2012. Vol. 221, nr 4, s. 393-401
Nyckelord [en]
Psychotic illness, Gait pattern, Movement analysis, EMG
Nationell ämneskategori
Radiologi och bildbehandling
Identifikatorer
URN: urn:nbn:se:umu:diva-59706DOI: 10.1007/s00221-012-3184-7ISI: 000307983100005OAI: oai:DiVA.org:umu-59706DiVA, id: diva2:563816
Tillgänglig från: 2012-10-31 Skapad: 2012-09-25 Senast uppdaterad: 2018-06-08Bibliografiskt granskad

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Öhberg, Fredrik

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