Pathomechanics of parkinson disease gait
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Transcript of Pathomechanics of parkinson disease gait
PATHOMICHANICS OF PARKINSON DISEASE GAITBY: JWANIKA VANSIYA
What is Parkinson’s disease?
• Parkinson’s disease is a progressive neurological condition, resulting from the degeneration of dopamine producing neurones in the substantia nigra, which is located within the basal ganglia, deep in the lower region of the brain, on either side of the brain stem.
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• Bradykinesia • Rigidity • Tremor • Postural instability
Clinical features
.
• Also called Parkinsonian gait or Festinating gait.
• Parkinsonian gait is characterized by small shuffling steps and a general slowness of movement (hypokinesia), or even the total loss of movement (akinesia) in the extreme cases.
Parkinson disease gait
.
• Tottering gait• Characteristically shows difficulty in initiating gait, rapid short
shuffling steps with loss of arm swing, stooped stance propulsion.
• Turning or changing direction is particularly difficult and typically accompanied by taking multiple small steps.
• Parkinsonian Gait.mp4
Festinating gait
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• Freezing of Gait (FOG) is typically a transient episode – lasting less than a minute, in which gait is halted and the patient complains that his/her feet are glued to the ground.
• ‘ignition disturbances’FallsFalls result mainly due to sudden changes in posture, in particular turning movements of the trunk, or attempts to perform more than one activity simultaneously with walking or balancing
Freezing of gait (FOG)
.
Gait characteristics
Spatiotemporal parameters Kinematics data Kinetic data
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• Velocity (m/s)• Stride length (m)• Cadence (stride/min)• Double support time• Cycle time (s)
Spatiotemporal parameters
.
Normal
Early stance – Dorsiflexion to planterflexionMid stance-DorsiflexionLate stance-Planter flexion
Parkinsonian gait
Reduction in dorsiflexion ROM at early stance.Reduction in planter flexion ROM during toe off.
Kinematics data
Ankle
.
Normal • Early to mid stance-
Extension to 15 degree of flexion• Late stance- knee flexion
with planter flexion
Parkinsonian gait• Reduced knee extension
during single support stance.
Kinematics data
knee
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Normal • Early to mid stance
phase – flexion • Late stance phase –
extension
Parkinsonian gait• Lower flexion range
during initial contact • Decrease hip flexion
ROM in pre swing phase.
Kinematics dataHip
Ankle :• Reduced ankle moment at loading response.• Power generation in parkinson disease group deteriorate in
late stance.Knee:• Lower power generation during single stance phase of the
gait. This occurs due to limited knee extension during the stance phase.
• Decreased power absorption at the knee joint during the late stance and preswing phase.
Kinetics data
Hip • Reduction of max hip extensor moment and decrease hip
power generation in the first double support.• Also max hip flexion moment and power generation in the
second double support and pre swing reduced.• Parkinsonian Gait Demonstration.mp4
References • Sofuwa O, Nieuwboer A, Desloovere K, Willems AM, Chavret F,
Jonkers I. Quantitative gait analysis in Parkinson's disease: comparison with a healthy control group. Archives of physical medicine and rehabilitation. 2005;86(5):1007-13.
• Svehlik M, Zwick EB, Steinwender G, Linhart WE, Schwingenschuh P, Katschnig P, et al. Gait analysis in patients with Parkinson's disease off dopaminergic therapy. Archives of physical medicine and rehabilitation. 2009;90(11):1880-6.
• Svehlik M, Zwick EB, Steinwender G, Linhart WE, Schwingenschuh P, Katschnig P, et al. Gait analysis in patients with Parkinson's disease off dopaminergic therapy. Archives of physical medicine and rehabilitation. 2009;90(11):1880-6.
• Gait disorders evaluation and management Jeffrey M. Hausdorff , Neil B. Alexander• The Professional’s Guide to Parkinson’s Disease