Mode of hand training determines cortical reorganisation: A randomized controlled study in healthy adults
Författare
Summary, in English
Objective: To evaluate two commonly used forms of hand training with respect to influence on dexterity and cortical reorganization. Subjects: Thirty healthy volunteers (mean age 24.2 years). Methods: The subjects were randomized to 25 min of shaping exercises or general activity training of the non-dominant hand. The dexterity and the cortical motor maps (number of excitable positions) of the abductor pollicis brevis muscle were evaluated pre- and post-training by the Purdue Peg Board test and transcranial magnetic stimulation, respectively. Results: After shaping exercises the dexterity increased significantly (p <= 0.005) for both hands, mostly so in the non-dominant hand. The cortical motor map of the abductor pollicis brevis muscle shifted forwardly into the pre-motor area without expanding. After general activity training, no significant improvements in dexterity were found for the non-dominant hand. The cortical motor map of the non-dominant abductor pollicis brevis muscle expanded significantly (p = 0.03) in the posterior (sensory) direction. Conclusion: These results indicate that shaping exercises, but not general activity training, increase dexterity of the trained non-dominant hand in parallel with a shift of location of active transcranial magnetic stimulation positions. Shifts of active cortical areas might be important for the interpretation of brain plasticity in common behavioural tasks.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Sidor
789-794
Publikation/Tidskrift/Serie
Journal of Rehabilitation Medicine
Volym
42
Issue
8
Fulltext
- Available as PDF - 581 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
Taylor & Francis
Ämne
- Other Medical Sciences not elsewhere specified
Nyckelord
- hand training
- dexterity
- healthy subjects
- stimulation
- transcranial magnetic
- cortical shift
- plasticity
Status
Published
Forskningsgrupp
- Human Movement: health and rehabilitation
ISBN/ISSN/Övrigt
- ISSN: 1651-2081