Changes in corticospinal drive to spinal motoneurones following tablet-based practice of manual dexterity
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Changes in corticospinal drive to spinal motoneurones following tablet-based practice of manual dexterity. / Larsen, Lisbeth Højkjær; Jensen, Thor; Christensen, Mark Schram; Lundbye-Jensen, Jesper; Langberg, Henning; Nielsen, Jens Bo.
I: Physiological Reports, Bind 4, Nr. 2, e12684, 2016.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Changes in corticospinal drive to spinal motoneurones following tablet-based practice of manual dexterity
AU - Larsen, Lisbeth Højkjær
AU - Jensen, Thor
AU - Christensen, Mark Schram
AU - Lundbye-Jensen, Jesper
AU - Langberg, Henning
AU - Nielsen, Jens Bo
N1 - CURIS 2016 NEXS 044
PY - 2016
Y1 - 2016
N2 - The use of touch screens, which require a high level of manual dexterity, has exploded since the development of smartphone and tablet technology. Manual dexterity relies on effective corticospinal control of finger muscles, and we therefore hypothesized that corticospinal drive to finger muscles can be optimized by tablet-based motor practice. To investigate this, sixteen able-bodied females practiced a tablet-based game (3 × 10 min) with their nondominant hand requiring incrementally fast and precise pinching movements involving the thumb and index fingers. The study was designed as a semirandomized crossover study where the participants attended one practice- and one control session. Before and after each session electrophysiological recordings were obtained during three blocks of 50 precision pinch movements in a standardized setup resembling the practiced task. Data recorded during movements included electroencephalographic (EEG) activity from primary motor cortex and electromyographic (EMG) activity from first dorsal interosseous (FDI) and abductor pollicis brevis (APB) muscles. Changes in the corticospinal drive were evaluated from coupling in the frequency domain (coherence) between EEG-EMG and EMG-EMG activity. Following motor practice performance improved significantly and a significant increase in EEG-EMGAPB and EMGAPB-EMGFDI coherence in the beta band (15-30 Hz) was observed. No changes were observed after the control session. Our results show that tablet-based motor practice is associated with changes in the common corticospinal drive to spinal motoneurons involved in manual dexterity. Tablet-based motor practice may be a motivating training tool for stroke patients who struggle with loss of dexterity.
AB - The use of touch screens, which require a high level of manual dexterity, has exploded since the development of smartphone and tablet technology. Manual dexterity relies on effective corticospinal control of finger muscles, and we therefore hypothesized that corticospinal drive to finger muscles can be optimized by tablet-based motor practice. To investigate this, sixteen able-bodied females practiced a tablet-based game (3 × 10 min) with their nondominant hand requiring incrementally fast and precise pinching movements involving the thumb and index fingers. The study was designed as a semirandomized crossover study where the participants attended one practice- and one control session. Before and after each session electrophysiological recordings were obtained during three blocks of 50 precision pinch movements in a standardized setup resembling the practiced task. Data recorded during movements included electroencephalographic (EEG) activity from primary motor cortex and electromyographic (EMG) activity from first dorsal interosseous (FDI) and abductor pollicis brevis (APB) muscles. Changes in the corticospinal drive were evaluated from coupling in the frequency domain (coherence) between EEG-EMG and EMG-EMG activity. Following motor practice performance improved significantly and a significant increase in EEG-EMGAPB and EMGAPB-EMGFDI coherence in the beta band (15-30 Hz) was observed. No changes were observed after the control session. Our results show that tablet-based motor practice is associated with changes in the common corticospinal drive to spinal motoneurons involved in manual dexterity. Tablet-based motor practice may be a motivating training tool for stroke patients who struggle with loss of dexterity.
U2 - 10.14814/phy2.12684
DO - 10.14814/phy2.12684
M3 - Journal article
C2 - 26811055
VL - 4
JO - Physiological Reports
JF - Physiological Reports
SN - 2051-817X
IS - 2
M1 - e12684
ER -
ID: 154143859