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Jan Magnus Bjordal - One of the best experts on this subject based on the ideXlab platform.
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:Abstract Objective: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). Background Data: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials and Methods: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer ...
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:OBJECTIVE: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). BACKGROUND DATA: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials AND METHODS: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer and blood lactate concentration was measured. RESULTS: Compared to the first session (on day 1), the mean number of repetitions increased significantly by 8.5 repetitions (+/- 1.9) in the active LLLT group at the second session (on day 8), while in the placebo LLLT group the increase was only 2.7 repetitions (+/- 2.9) (p = 0.0001). At the second session, blood lactate levels increased from a pre-exercise mean of 2.4 mmol/L (+/- 0.5 mmol/L), to 3.6 mmol/L (+/- 0.5 mmol/L) in the placebo group, and to 3.8 mmol/L (+/- 0.4 mmol/L) in the active LLLT group after exercise, but this difference between groups was not statistically significant. CONCLUSION: We conclude that LLLT appears to delay the onset of muscle Fatigue and exhaustion by a local mechanism in spite of increased blood lactate levels.
Ernesto Cesar Pinto Leal - One of the best experts on this subject based on the ideXlab platform.
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:Abstract Objective: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). Background Data: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials and Methods: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer ...
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:OBJECTIVE: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). BACKGROUND DATA: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials AND METHODS: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer and blood lactate concentration was measured. RESULTS: Compared to the first session (on day 1), the mean number of repetitions increased significantly by 8.5 repetitions (+/- 1.9) in the active LLLT group at the second session (on day 8), while in the placebo LLLT group the increase was only 2.7 repetitions (+/- 2.9) (p = 0.0001). At the second session, blood lactate levels increased from a pre-exercise mean of 2.4 mmol/L (+/- 0.5 mmol/L), to 3.6 mmol/L (+/- 0.5 mmol/L) in the placebo group, and to 3.8 mmol/L (+/- 0.4 mmol/L) in the active LLLT group after exercise, but this difference between groups was not statistically significant. CONCLUSION: We conclude that LLLT appears to delay the onset of muscle Fatigue and exhaustion by a local mechanism in spite of increased blood lactate levels.
Rodrigo Alvaro Brandao Lopesmartins - One of the best experts on this subject based on the ideXlab platform.
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:Abstract Objective: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). Background Data: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials and Methods: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer ...
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:OBJECTIVE: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). BACKGROUND DATA: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials AND METHODS: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer and blood lactate concentration was measured. RESULTS: Compared to the first session (on day 1), the mean number of repetitions increased significantly by 8.5 repetitions (+/- 1.9) in the active LLLT group at the second session (on day 8), while in the placebo LLLT group the increase was only 2.7 repetitions (+/- 2.9) (p = 0.0001). At the second session, blood lactate levels increased from a pre-exercise mean of 2.4 mmol/L (+/- 0.5 mmol/L), to 3.6 mmol/L (+/- 0.5 mmol/L) in the placebo group, and to 3.8 mmol/L (+/- 0.4 mmol/L) in the active LLLT group after exercise, but this difference between groups was not statistically significant. CONCLUSION: We conclude that LLLT appears to delay the onset of muscle Fatigue and exhaustion by a local mechanism in spite of increased blood lactate levels.
Francis Dalan - One of the best experts on this subject based on the ideXlab platform.
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:Abstract Objective: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). Background Data: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials and Methods: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer ...
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:OBJECTIVE: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). BACKGROUND DATA: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials AND METHODS: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer and blood lactate concentration was measured. RESULTS: Compared to the first session (on day 1), the mean number of repetitions increased significantly by 8.5 repetitions (+/- 1.9) in the active LLLT group at the second session (on day 8), while in the placebo LLLT group the increase was only 2.7 repetitions (+/- 2.9) (p = 0.0001). At the second session, blood lactate levels increased from a pre-exercise mean of 2.4 mmol/L (+/- 0.5 mmol/L), to 3.6 mmol/L (+/- 0.5 mmol/L) in the placebo group, and to 3.8 mmol/L (+/- 0.4 mmol/L) in the active LLLT group after exercise, but this difference between groups was not statistically significant. CONCLUSION: We conclude that LLLT appears to delay the onset of muscle Fatigue and exhaustion by a local mechanism in spite of increased blood lactate levels.
Mauricio Ferrari - One of the best experts on this subject based on the ideXlab platform.
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:Abstract Objective: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). Background Data: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials and Methods: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer ...
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effect of 655 nm low level laser therapy on exercise induced skeletal muscle Fatigue in humans
Photomedicine and Laser Surgery, 2008Co-Authors: Ernesto Cesar Pinto Leal, Rodrigo Alvaro Brandao Lopesmartins, Francis Dalan, Mauricio Ferrari, Fernando Montanari Sbabo, Rafael Abeche Generosi, Bruno Manfredini Baroni, Socrates Penna, Vegard Vereide Iversen, Jan Magnus BjordalAbstract:OBJECTIVE: To investigate if development of skeletal muscle Fatigue during repeated voluntary biceps contractions could be attenuated by low-level laser therapy (LLLT). BACKGROUND DATA: Previous animal studies have indicated that LLLT can reduce oxidative stress and delay the onset of skeletal muscle Fatigue. Materials AND METHODS: Twelve male professional volleyball players were entered into a randomized double-blind placebo-controlled trial, for two sessions (on day 1 and day 8) at a 1-wk interval, with both groups performing as many voluntary biceps contractions as possible, with a load of 75% of the maximal voluntary contraction force (MVC). At the second session on day 8, the groups were either given LLLT (655 nm) of 5 J at an energy density of 500 J/cm2 administered at each of four points along the middle of the biceps muscle belly, or placebo LLLT in the same manner immediately before the exercise session. The number of muscle contractions with 75% of MVC was counted by a blinded observer and blood lactate concentration was measured. RESULTS: Compared to the first session (on day 1), the mean number of repetitions increased significantly by 8.5 repetitions (+/- 1.9) in the active LLLT group at the second session (on day 8), while in the placebo LLLT group the increase was only 2.7 repetitions (+/- 2.9) (p = 0.0001). At the second session, blood lactate levels increased from a pre-exercise mean of 2.4 mmol/L (+/- 0.5 mmol/L), to 3.6 mmol/L (+/- 0.5 mmol/L) in the placebo group, and to 3.8 mmol/L (+/- 0.4 mmol/L) in the active LLLT group after exercise, but this difference between groups was not statistically significant. CONCLUSION: We conclude that LLLT appears to delay the onset of muscle Fatigue and exhaustion by a local mechanism in spite of increased blood lactate levels.
