Immediate effects of low-intensity laser (808 nm) on fatigue and strength of spastic muscle

摘要: The cerebrovascular accident (CVA), high-impact disease II, affects the basic functions of limbs, leading to changes sensory, language, and motor functions. search for resources that minimize damage caused by this grows every day. clinical use low-intensity laser therapy (LILT) has provided major breakthroughs in treatment muscular disorders prevention muscle fatigue. Thus, objective present study is analyze answers immediate adaptations rectus femoris vastus medialis spastic hemiparetic patients, facing increase peak torque triggering fatigue, after application LILT. Double-blind trials were conducted with 15 volunteers post-CVA spasticity, both genders, between 40 80 years old. To end, went through three consecutive stages rating (control, placebo, laser). All performed tests isometric contraction on patient’s side. Significant differences observed regard performance (p = 0.0043) reduction blood lactate concentration < 0.0001) post-LILT muscles. LILT (diode laser, l100 mW 808 nm, 4.77 J/cm2/point, s/AP) can be employed during muscle-strengthening exercises, contributing improvement function patient. After LILT, we found increased as well decreased level patients spasticity.