Transient impact of prolonged versus repetitive stretch on hand motor control in chronic stroke

Kristen Triandafilou*, Jose Ochoa, Xuan Kang, Heidi Fischer, Mary Stoykov, Derek Kamper

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Background and Purpose: The purpose of this study was to investigate the influence of prolonged and repetitive passive range of motion (PROM) stretching of the fingers on hand function in stroke survivors. Participants: Fifteen chronic stroke survivors with moderate to severe hand impairment took part in the study. Method: Participants underwent 3 experimental sessions consisting of 30 minutes of rest, prolonged, or repetitive stretching of the finger flexor muscles by a powered glove orthosis (X-Glove). Outcome measures, comprised of 3 selected tasks from the Graded Wolf Motor Function Test (GWMFT), grip strength, lateral pinch strength, and grip relaxation time, were recorded at the start and end of each session. Change in outcome score for each session was used for analysis. Results: Data suggested a trend for improvement following stretching, especially for the repetitive PROM case. For one GWMFT task (lift washcloth), the effect of stretching condition on performance time approached a statistical significance (P =.015), with repetitive PROM stretching producing the greatest mean reduction. Similarly, repetitive stretching led to a 12% ± 16% increase in grip strength, although this change was not statistically different across groups (P =.356); and grip termination time was reduced, albeit non-significantly, by 66% ± 133%. Conclusion: Repetitive PROM stretching exhibited trends to be more effective than prolonged stretching for improving hand motor control. Although the results were highly variable and the effects are undoubtedly transient, an extended period of repetitive PROM stretching may prove advantageous prior to hand therapy sessions to maximize treatment.

Original languageEnglish (US)
Pages (from-to)316-324
Number of pages9
JournalTopics in Stroke Rehabilitation
Volume18
Issue number4
DOIs
StatePublished - Jan 1 2011

Keywords

  • hand
  • stretching
  • stroke

ASJC Scopus subject areas

  • Clinical Neurology
  • Rehabilitation
  • Community and Home Care

Fingerprint Dive into the research topics of 'Transient impact of prolonged versus repetitive stretch on hand motor control in chronic stroke'. Together they form a unique fingerprint.

Cite this