TY - JOUR
T1 - Muscular pre-conditioning using light-emitting diode therapy (LEDT) for high-intensity exercise
T2 - A randomized double-blind placebo-controlled trial with a single elite runner
AU - Ferraresi, Cleber
AU - Beltrame, Thomas
AU - Fabrizzi, Fernando
AU - Do Nascimento, Eduardo Sanches Pereira
AU - Karsten, Marlus
AU - De Oliveira Francisco, Cristina
AU - Borghi-Silva, Audrey
AU - Catai, Aparecida Maria
AU - Cardoso, Daniel Rodrigues
AU - Ferreira, Antonio Gilberto
AU - Hamblin, Michael R.
AU - Bagnato, Vanderlei Salvador
AU - Parizotto, Nivaldo Antonio
N1 - Publisher Copyright:
© 2015 Informa Healthcare USA, Inc.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Recently, low-level laser (light) therapy (LLLT) has been used to improve muscle performance. This study aimed to evaluate the effectiveness of near-infrared light-emitting diode therapy (LEDT) and its mechanisms of action to improve muscle performance in an elite athlete. The kinetics of oxygen uptake (VO2), blood and urine markers of muscle damage (creatine kinase-CK and alanine), and fatigue (lactate) were analyzed. Additionally, some metabolic parameters were assessed in urine using proton nuclear magnetic resonance spectroscopy (1H NMR). A LED cluster with 50 LEDs (λ=850nm; 50mW 15s; 37.5J) was applied on legs, arms and trunk muscles of a single runner athlete 5min before a high-intense constant workload running exercise on treadmill. The athlete received either Placebo-1-LEDT; Placebo-2-LEDT; or Effective-LEDT in a randomized double-blind placebo-controlled trial with washout period of 7d between each test. LEDT improved the speed of the muscular VO2 adaptation (∼-9s), decreased O2 deficit (∼-10L), increased the VO2 from the slow component phase (∼+348ml min-1), and increased the time limit of exercise (∼+589s). LEDT decreased blood and urine markers of muscle damage and fatigue (CK, alanine and lactate levels). The results suggest that a muscular pre-conditioning regimen using LEDT before intense exercises could modulate metabolic and renal function to achieve better performance.
AB - Recently, low-level laser (light) therapy (LLLT) has been used to improve muscle performance. This study aimed to evaluate the effectiveness of near-infrared light-emitting diode therapy (LEDT) and its mechanisms of action to improve muscle performance in an elite athlete. The kinetics of oxygen uptake (VO2), blood and urine markers of muscle damage (creatine kinase-CK and alanine), and fatigue (lactate) were analyzed. Additionally, some metabolic parameters were assessed in urine using proton nuclear magnetic resonance spectroscopy (1H NMR). A LED cluster with 50 LEDs (λ=850nm; 50mW 15s; 37.5J) was applied on legs, arms and trunk muscles of a single runner athlete 5min before a high-intense constant workload running exercise on treadmill. The athlete received either Placebo-1-LEDT; Placebo-2-LEDT; or Effective-LEDT in a randomized double-blind placebo-controlled trial with washout period of 7d between each test. LEDT improved the speed of the muscular VO2 adaptation (∼-9s), decreased O2 deficit (∼-10L), increased the VO2 from the slow component phase (∼+348ml min-1), and increased the time limit of exercise (∼+589s). LEDT decreased blood and urine markers of muscle damage and fatigue (CK, alanine and lactate levels). The results suggest that a muscular pre-conditioning regimen using LEDT before intense exercises could modulate metabolic and renal function to achieve better performance.
KW - Fatigue
KW - LEDT
KW - LLLT
KW - Muscle damage
KW - NMR
KW - Oxygen uptake
KW - Photobiomodulation
UR - http://www.scopus.com/inward/record.url?scp=84931829031&partnerID=8YFLogxK
U2 - 10.3109/09593985.2014.1003118
DO - 10.3109/09593985.2014.1003118
M3 - Article
C2 - 25585514
AN - SCOPUS:84931829031
SN - 0959-3985
VL - 31
SP - 354
EP - 361
JO - Physiotherapy Theory and Practice
JF - Physiotherapy Theory and Practice
IS - 5
ER -