An Analysis of Parkinsonian Gait

Knutsson, E

doi:10.1093/brain/95.3.475

Cited by 242 publications

(140 citation statements)

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“…2,10,[18][19][20] These studies also documented a tendency of longer duration in the double-support phase of the gait cycle and a normal cadence. In other studies, 21,22 a reduction of cadence values was reported.…”

Section: Spatiotemporalmentioning

confidence: 99%

Quantitative Gait Analysis in Parkinson’s Disease: Comparison With a Healthy Control Group

Sofuwa

Nieuwboer

Desloovere

et al. 2005

Archives of Physical Medicine and Rehabilitation

296

179

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Objective: To compare gait parameters in Parkinson's disease (PD) during the on-phase of medication cycle with those of healthy elderly control subjects.Design: A group-comparison study. Setting: Gait analysis laboratory of a university hospital. Participants: Fifteen patients with PD and 9 healthy elderly controls.Interventions: Not applicable. Main Outcome Measures: Spatiotemporal, kinematic, and kinetic gait parameters.Results: The PD spatiotemporal results showed a significant reduction in step length and walking velocity compared with controls. In the kinematics, the major feature of the PD group was a markedly reduced ankle plantarflexion excursion (at 50%-60% of the gait cycle). Most important, the kinetics showed reduced ankle push-off power and hip pull-off power. Unlike the control subjects, the patients with PD did not show any correlation between ankle generation (push-off) power and stride length (rϭ.19) or with gait speed (rϭ.29). Correction for walking velocity did not result in significant changes in the kinetics between the groups.Conclusions: Reduced ankle (push-off) power generation and reduced hip flexion (pull-off) power persisted in PD gait despite being tested in the on-phase of the medication cycle. Lack of a correlation between ankle and hip power generation and walking velocity suggests that peripheral and central factors contribute to lack of forward progression. Patients with PD may benefit from intervention strategies that correct the kinematic and the kinetic gait components.

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Section: Spatiotemporalmentioning

confidence: 99%

Quantitative Gait Analysis in Parkinson’s Disease: Comparison With a Healthy Control Group

Sofuwa

Nieuwboer

Desloovere

et al. 2005

Archives of Physical Medicine and Rehabilitation

296

179

View full text Add to dashboard Cite

show abstract

“…(Knuttson, 1972). Gait in PD is often characterized by a shuffling gait with small steps, reduced amplitude of upper limb movements, and a stooped posture (Knuttson, 1972).…”

Section: Gait Hypokinesia In Parkinson's Disease: Velocity and Stridementioning

confidence: 99%

“…(Knuttson, 1972). Gait in PD is often characterized by a shuffling gait with small steps, reduced amplitude of upper limb movements, and a stooped posture (Knuttson, 1972). There can also be problems with initiation of gait, difficulty turning and freezing of gait (Tan, Danoudis, McGinley, & Morris, 2012).…”

Section: Gait Hypokinesia In Parkinson's Disease: Velocity and Stridementioning

confidence: 99%

“…For example, Morris et al (1994b) found that when provided with floor markers, individuals with PD were able achieve normal stride length values. These findings suggest that the step pattern is still intact in individuals with PD and that the problem of stride length regulation is related to difficulty activating the correct stepping response (Morris et al, 1994b (Morris et al, 1994 a b;Maggioni, Veicsteinas, Rampichini, Ce, Nemni, Riboldazzi, & Merati, 2011;Rochester et al, 2005;Knuttson, 1972;Murray, Sepic, Gena, Gardner, & Downs, 1978). Some of the inconsistency in these gait velocity values may be related to the severity of PD across these previous studies.…”

Section: Gait Hypokinesia In Parkinson's Disease: Velocity and Stridementioning

confidence: 99%

“…Some of the inconsistency in these gait velocity values may be related to the severity of PD across these previous studies. For example, Murray et al (1978) (Morris et al, 1994 a b;Knuttson, 1972).…”

Section: Gait Hypokinesia In Parkinson's Disease: Velocity and Stridementioning

confidence: 99%

See 2 more Smart Citations

Effect of concurrent walking and interlocutor distance on conversational speech intensity and rate in Parkinson's disease

et al. 2016

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This study examined the effects of concurrent walking tasks and interlocutor distance on conversational speech production in fifteen individuals with idiopathic Parkinson's disease (PD) and fourteen age-equivalent controls. Recent studies of speech in PD have demonstrated that changes in the behavioural conditions and the environmental context can have a powerful effect on the severity of speech symptoms in PD. This investigation focused on changes in speech intensity and speech rate in response to changes in walking speed and interlocutor distance. Results suggest that the introduction of a concurrent walking task significantly increased the conversational speech intensity of both controls and individuals with PD. When compared to sitting and talking or standing and talking, current walking and talking appeared to have an energizing effect on conversational speech intensity. In addition, walking faster was associated with a significant increase in conversational speech intensity relative to normal and slow walking speeds. These results provide important new information about the effect of concurrent walking on speech motor performance and speech symptom severity in PD. The potential energizing effect of concurrent walking conditions on conversational speech intensity may be an important consideration in the assessment and treatment of individuals with low speech intensity in PD.

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