We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Single Session of Transcranial Direct Current Stimulation Transiently Increases Knee Extensor Force in Patients With Hemiparetic Stroke.
- Authors
Tanaka, Satoshi; Takeda, Kotaro; Otaka, Yohei; Kita, Kahori; Osu, Rieko; Honda, Manabu; Sadato, Norihiro; Hanakawa, Takashi; Watanabe, Katsumi
- Abstract
Background. Transcranial direct current stimulation (tDCS) of the motor cortex can enhance the performance of a paretic upper extremity after stroke. Reported effects on lower limb (LL) function are sparse. Objective. The authors examined whether tDCS can increase the force production of the paretic quadriceps. Methods. In this double-blind, crossover, sham-controlled experimental design, 8 participants with chronic subcortical stroke performed knee extension using their hemiparetic leg before, during, and after anodal or sham tDCS of the LL motor cortex representation in the affected hemisphere. Affected hand-grip force was also recorded. Results. The maximal knee-extension force increased by 21 N (13.2%, P < .01) during anodal tDCS compared with baseline and sham stimulation. The increase persisted less than 30 minutes. Maximal hand-grip force did not change. Conclusions. Anodal tDCS transiently enhanced knee extensor strength. The modest increase was specific to the LL. Thus, tDCS might augment the rehabilitation of stroke patients when combined with lower extremity strengthening or functional training.
- Subjects
JAPAN; FRONTAL lobe; QUADRICEPS muscle physiology; ANALYSIS of variance; ARM; ATTENTION; CHRONIC diseases; CROSSOVER trials; FUNCTIONAL assessment; ELECTRIC stimulation; EXERCISE tests; FATIGUE (Physiology); GRIP strength; HEMIPLEGIA; RANGE of motion of joints; MUSCLE contraction; MUSCLE strength; PROBABILITY theory; RESEARCH funding; SCALE analysis (Psychology); STATISTICAL hypothesis testing; T-test (Statistics); QUADRICEPS muscle; PAIN measurement; VISUAL analog scale; REPEATED measures design; CEREBROVASCULAR disease patient rehabilitation; BLIND experiment; INNERVATION; PHYSIOLOGY
- Publication
Neurorehabilitation & Neural Repair, 2011, Vol 25, Issue 6, p565
- ISSN
1545-9683
- Publication type
Article
- DOI
10.1177/1545968311402091