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Cueing training in the home improves mobility in Parkinson's disease.

Summary of: Nieuwboer A, Kwakkel G, Rochester L, Jones D, van Wegen E, Willems AM, Chavret F, Hetherington V, Baker K, Lim I (2007) Cueing training in the home improves gait-related mobility in Parkinson's disease: the RESCUE trial. Journal of Neurology Neurosurgery and Psychiatry 78: 134-140. [Prepared by Bart Staal, CAP Editor.]

Commentary

Idiopathic Parkinson's disease (PD) is a complex and progressive disease. Even with optimal medical treatment, using drugs or neurosurgery, patients with PD are faced with increasing mobility-related problems. For these remaining impairments, activity limitations, and participation restrictions, many PD patients make use of physical therapy. An important physiotherapy intervention for gait-related problems due to PD is the use of cueing strategies (Morris 2006). However, in their review Lim et al (2005) showed that there is a lack of high quality studies evaluating the efficacy of cueing outside a laboratory setting in PD.

The study by Nieuwboer is the first large randomised controlled trial with sufficient power evaluating home-based cueing strategies in PD, provided by specifically trained physical therapists. Only one drop-out occurred, which is an exceptional performance. Hopefully, this will inspire others to carry out studies of equal quality in this field of research.

The results are a welcome addition to available recommendations for physical therapy in PD (Keus 2007). The current practice recommendation was that 'it is plausible that gait is improved by using visual or auditory cues which have been trained during active gait training.' Now, we can add 'there are indications that a 3-week cueing intervention improves 'posture and gait' and the confidence to carry out functional activities, without an increased probability of a fall'. Moreover, by duplicating the results of Thaut (1996), Nieuwboer provides evidence for the recommendation 'there are indications that a 3-week cueing intervention has no effects at 6-weeks after termination of the intervention.'

However, the present results were found when cues were absent during the assessments. In daily life, PD patients will use the cues in the circumstances they need them, eg, to increase their gait velocity when crossing a street. Therefore, the results found by Nieuwboer might be an underestimation of the real effect when using the cues. Future study might consider assessing the patients while using the cues.

Finally, as Nieuwboer discusses, it questionable whether the short period of treatment provided is optimal. In stroke rehabilitation, intensity was found to be more important than content. Future studies should focus on evaluating whether a prolonged period of cueing training increases the sizes of the effects found, to determine whether habituation occurs to the stimulus of the cue and to evaluate the falls risk over longer periods. Also, answers should be found to how, and in which patients, cues improve movement.

References

Morris ME (2006) Phys Ther 86: 1426-1435.

Lim I et al (2005) Clin Rehabil 19: 695-713.

Keus SH et al (2007) Mov Disord 22: 451-640.

Thaut MH et al (1996) Mov Disord 11: 193-200.

Samyra HJ Keus

Leiden University Medical Center & Radboud University Nijmegen Medical Center, The Netherlands
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Article Details
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Title Annotation:Appraisal: Critically Appraised Papers
Author:Staal, Bart
Publication:Australian Journal of Physiotherapy
Article Type:Report
Geographic Code:4EUNE
Date:Dec 1, 2007
Words:500
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