Katherine Baker

Dr. Katherine Baker

orcid

Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2007 in Journal of Neurology, Neurosurgery & Psychiatry
Verified
Journal Article
Open access
PDF file
ANAlice Nieuwboer
Alice Nieuwboer
GKGert Kwakkel
Gert Kwakkel
LRLynn Rochester
Lynn Rochester
DJD Jones
D Jones
EWErwin E.H. Van Wegen
Erwin E.H. Van Wegen
ILI Lim
I Lim
Objectives: Gait and mobility problems are difficult to treat in people with Parkinson’s disease. The Rehabilitation in Parkinson’s Disease: Strategies for Cueing (RESCUE) trial investigated the effects of a home physiotherapy programme based on rhythmical cueing on gait and gait-related activity. Methods: A single-blind randomised crossover trial was set up, including 153 patients with Parkinson’s disease aged between 41 and 80 years and in Hoehn and Yahr stage II–IV. Subjects allocated to early intervention (n = 76) received a 3-week home cueing programme using a prototype cueing device, followed by 3 weeks without training. Patients allocated to late intervention (n = 77) underwent the same intervention and control period in reverse order. After the initial 6 weeks, both groups had a 6-week follow-up without training. Posture and gait scores (PG scores) measured at 3, 6 and 12 weeks by blinded testers were the primary outcome measure. Secondary outcomes included specific measures on gait, freezing and balance, functional activities, quality of life and carer strain. Results: Small but significant improvements were found after intervention of 4.2% on the PG scores (p = 0.005). Severity of freezing was reduced by 5.5% in freezers only (p = 0.007). Gait speed (p = 0.005), step length (p<0.001) and timed balance tests (p = 0.003) improved in the full cohort. Other than a greater confidence to carry out functional activities (Falls Efficacy Scale, p = 0.04), no carry-over effects were observed in functional and quality of life domains. Effects of intervention had reduced considerably at 6-week follow-up. Conclusions: Cueing training in the home has specific effects on gait, freezing and balance. The decline in effectiveness of intervention effects underscores the need for permanent cueing devices and follow-up treatment. Cueing training may be a useful therapeutic adjunct to the overall management of gait disturbance in Parkinson’s disease.

1 March 2010 in Brain Research
Verified
Journal Article
Closed access
LRLynn Rochester
Lynn Rochester
KBKatherine Baker
Katherine Baker
VHVictoria Hetherington
Victoria Hetherington
DJDiana Jones
Diana Jones
AWAnne-Marie Willems
Anne-Marie Willems
ANAlice Nieuwboer
Alice Nieuwboer

1 December 2007 in Archives of Physical Medicine and Rehabilitation
Verified
Journal Article
Closed access
KBKatherine Baker
Katherine Baker
LRLynn Rochester
Lynn Rochester
ANAlice Nieuwboer
Alice Nieuwboer

28 June 2007 in Journal of Neural Transmission
Verified
Journal Article
Closed access
PDF file
LRLynn Rochester
Lynn Rochester
ANAlice Nieuwboer
Alice Nieuwboer
KBKatherine Baker
Katherine Baker
VHV. Hetherington
V. Hetherington
AWA.-M. Willems
A.-M. Willems
DJD. Jones
D. Jones

30 October 2010 in Journal of Neurology
Verified
Journal Article
Closed access
PDF file
SLSue Lord
Sue Lord
KBKatherine Baker
Katherine Baker
ANAlice Nieuwboer
Alice Nieuwboer
DBDavid Burn
David Burn
LRLynn Rochester
Lynn Rochester

2 June 2009 in Neurorehabilitation and Neural Repair
Verified
Journal Article
Closed access
ANAlice Nieuwboer
Alice Nieuwboer
KBKatherine Baker
Katherine Baker
AWAnne-Marie Willems
Anne-Marie Willems
DJDiana Jones
Diana Jones
JSJoke Spildooren
Joke Spildooren
LRLynn Rochester
Lynn Rochester
Background. Turning has been associated with instability, falls, and freezing in people with Parkinson’s disease (PD). Objective. To investigate the effect of different modalities of rhythmic cueing on the duration of a functional turn in freezers and nonfreezers. Methods. A total of 133 patients with idiopathic PD while in the on phase of the medication cycle participated in this study as part of a subanalysis from the RESCUE trial. The effect of 3 different cue modalities on functional turning performance was investigated, involving a 180° turn while picking up a tray. Time to perform this task was measured using an activity monitor. Tests were performed without cues and with auditory, visual, and somatosensory cues delivered in a randomized order at preferred straight-line stepping frequency. Results. Cueing (all types) increased the speed of the turn in all subjects. There was no difference between turn performance of freezers and nonfreezers in cued and noncued conditions. Auditory cues made turning significantly faster than visual cues (P < .01) but not compared with somatosensory cues, except in nonfreezers. There was a short-term carryover in the final noncued trial. Conclusions. Rhythmical cueing yielded faster performance of a functional turn in both freezers and nonfreezers. This may be explained by enhancing attentional mechanisms during turning. Although no harmful effects were recorded, the safety of cueing for turning as a therapeutic strategy needs further study.