Quadriceps muscle strength is a key goal to be achieved in rehabilitation protocols for a variety of musculoskeletal conditions. Both cerebral and peripheral electrical stimulations can modulate motor brain areas involved in motor functions and has the potential to optimize muscle capacity. However, their effects on quadriceps function are lacking. This study aims to investigate the effects of transcranial direct current stimulation (tDCS) and peripheral electrical stimulation (PES) on quadriceps strength in healthy subjects.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
20
Transcranial direct current stimulation (tDCS) is a noninvasive brain stimulation (NIBS) technique that has been investigated for the management of various health conditions. However, its ergogenic effect still has controversial results.
Peripheral electrical stimulation (PES) activates a complex neural network involving a series of neurotransmitters and receptors capable of promoting segmental and extrasegmental analgesia. Moreover, recent evidence has shown that PES can activate brain motor areas such as primary motor cortex.
Department of Physical Therapy. Federal University of Piaui
Parnaíba, Piauí, Brazil
Isometric quadriceps strength
Maximal isometric voluntary contraction (Kgf)
Time frame: Pre and Post-test (immediately after tDCS)
Isometric quadriceps strength
Maximal isometric voluntary contraction (Kgf)
Time frame: During stimulation
Isometric quadriceps strength
Maximal isometric voluntary contraction (Kgf)
Time frame: 10 minutes post-stimulation
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