scholarly journals Effect of pre-game photobiomodulation on muscle recovery in professional soccer players: study protocol for a randomized, cross-over, sham-controlled, triple-blind, clinical trial

2020 ◽  
pp. 1-6
Author(s):  
Igor Phillip dos Santos Glória ◽  
Ernesto Cesar Pinto Leal Junior ◽  
Fabiano Politti ◽  
Carolina Marciela Herpich ◽  
Denis Smith ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Creatine Kinase ◽  
Repair Process ◽  
Soccer Players ◽  
Low Level Laser Therapy ◽  
Subjective Perception ◽  
Muscle Recovery ◽  
Double Blind ◽  
Post Exercise ◽  
Professional Soccer

Background: Photobiomodulation with low-level laser therapy (LLLT) has been widely used in clinical practice for diverse purposes, such as modulation of the inflammatory process, acceleration of the tissue repair process, pain relief and the enhancement of post-exercise recovery. Studies have demonstrated a beneficial interaction between photobiomodulation and the production of creatine kinase, with a reduction in the release of this marker of muscle damage when laser and/or LEDs is administered prior to high-intensity physical activity. Objective: The aim of the proposed study is to determine the influence of pre-exercise phototherapy on post-exercise muscle recovery. Methods: A randomized, cross-over, sham-controlled, double-blind, clinical trial is proposed. The participants will be healthy professional soccer players aged 15 to 20 years from the same team with a body mass index within the ideal range (20 to 25 kg/m2 ) and no history of lower limb musculoskeletal injuries or surgery or back surgery in the previous six months. The athletes will be allocated to two groups based on the previously calculated sample size and will be blinded to allocation. Creatine kinase will be measured and the subjective perception of fatigue will be determined for each participant. The volunteers will then be randomly allocated to Group A, which will receive active phototherapy, and Group B, which will receive sham phototherapy. The athletes will undergo reevaluations immediately after as well as 48 hours after a football match. The data will be submitted to statistical analysis and the level of significance will be set to 5%. This study is registered with Clinical Trials under protocol number: NCT03416998.

scholarly journals SHORT-TERM EFFICACY OF LOW-LEVEL LASER THERAPY IN PATIENTS WITH KNEE OSTEOARTHRITIS: A RANDOMIZED PLACEBO-CONTROLLED, DOUBLE-BLIND CLINICAL TRIAL

2011 ◽  
Vol 46 (5) ◽  
pp. 526-533 ◽  
Author(s):  
Vanessa Ovanessian Fukuda ◽  
Thiago Yukio Fukuda ◽  
Márcio Guimarães ◽  
Silvia Shiwa ◽  
Bianca Del Cor de Lima ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Knee Osteoarthritis ◽  
Laser Therapy ◽  
Low Level Laser Therapy ◽  
Short Term ◽  
Double Blind ◽  
Low Level ◽  
Low Level Laser ◽  
Level Laser ◽  
Double Blind Clinical Trial

The upper values of plasma creatine kinase of professional soccer players during the Brazilian National Championship

2009 ◽  
Vol 12 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Fernanda L. Lazarim ◽  
Joaquim M.F. Antunes-Neto ◽  
Fernando O.C. da Silva ◽  
Lázaro A.S. Nunes ◽  
Adriana Bassini-Cameron ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Soccer Players ◽  
Professional Soccer ◽  
Plasma Creatine Kinase

scholarly journals Coffee Increases Post-Exercise Muscle Glycogen Recovery in Endurance Athletes: A Randomized Clinical Trial

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3335
Author(s):  
Laís Monteiro Rodrigues Loureiro ◽  
Eugênio dos Santos dos Santos Neto ◽  
Guilherme Eckhardt Molina ◽  
Angélica Amorim Amato ◽  
Sandra Fernandes Arruda ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Muscle Glycogen ◽  
Glycogen Synthase ◽  
Double Blind ◽  
Post Exercise ◽  
Glycogen Resynthesis ◽  
Ergometer Exercise ◽  
Exercise Muscle ◽  
Insulinemic Response

Coffee is one of the most widely consumed beverages worldwide and caffeine is known to improve performance in physical exercise. Some substances in coffee have a positive effect on glucose metabolism and are promising for post-exercise muscle glycogen recovery. We investigated the effect of a coffee beverage after exhaustive exercise on muscle glycogen resynthesis, glycogen synthase activity and glycemic and insulinemic response in a double-blind, crossover, randomized clinical trial. Fourteen endurance-trained men performed an exhaustive cycle ergometer exercise to deplete muscle glycogen. The following morning, participants completed a second cycling protocol followed by a 4-h recovery, during which they received either test beverage (coffee + milk) or control (milk) and a breakfast meal, with a simple randomization. Blood samples and muscle biopsies were collected at the beginning and by the end of recovery. Eleven participants were included in data analysis (age: 39.0 ± 6.0 years; BMI: 24.0 ± 2.3 kg/m2; VO2max: 59.9 ± 8.3 mL·kg−1·min−1; PPO: 346 ± 39 W). The consumption of coffee + milk resulted in greater muscle glycogen recovery (102.56 ± 18.75 vs. 40.54 ± 18.74 mmol·kg dw−1; p = 0.01; d = 0.94) and greater glucose (p = 0.02; d = 0.83) and insulin (p = 0.03; d = 0.76) total area under the curve compared with control. The addition of coffee to a beverage with adequate amounts of carbohydrates increased muscle glycogen resynthesis and the glycemic and insulinemic response during the 4-h recovery after exhaustive cycling exercise.

scholarly journals Is Kinesio taping better than placebo taping for improving performance during unilateral vertical jump and hop tests? Protocol study for a randomized, placebo-controlled, double-blind, clinical trial

2016 ◽  
Vol 14 ◽  
pp. 357
Author(s):  
Igor Phillip dos Santos Glória ◽  
Carolina Marciela Herpich ◽  
Felipe Serenza ◽  
Fabiano Politti ◽  
Tabajara De Oliveira Gonzalez ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Muscle Activation ◽  
Vertical Jump ◽  
Triceps Surae ◽  
Double Blind ◽  
Hop Tests ◽  
Kinesio Taping ◽  
Professional Soccer ◽  
Double Blind Clinical Trial ◽  
Hop Test

Introduction: Kinesio taping consists of the attachment of a thin elastic tape over specific muscles, the thickness of which is similar to that of the epidermis. This tape can be stretched to 140% of its original length, which demonstrates greater elasticity in comparison to conventional bandages. According to the creator of this method, Kinesio taping leads to better muscle activation or inhibition, reduces pain, swelling and muscle spasms and prevents muscle injury. Objective: The aim of the proposed study is to compare and analyze the immediate effect of Kinesio taping and placebo taping on performance during unilateral vertical jump and two hop tests by young professional soccer players. Methods: A randomized, placebo-controlled, double-blind, clinical trial will be conducted involving 100 athletes. The volunteers will be submitted to an evaluation of the dominant lower limb using the Single Leg Hop Test and Single Leg Triple Hop Test as well as the evaluation of a unilateral vertical jump on a pressure platform. The athletes will then be randomly allocated to two groups. Group A will receive Kinesio taping of the triceps surae muscle as described by Kase (2003, 2013) and Group B will receive a placebo taping of the same muscle. After 30 minutes, the volunteers will be submitted to the same evaluation tests. Analysis: Intra-group and inter-group analyses of the results will be performed. Statistical tests will be conducted considering a 5% significance level. This study is registered with Clinical Trials under protocol number: NCT02560961 

scholarly journals Association Between Match Activity Variables, Measures of Fatigue and Neuromuscular Performance Capacity Following Elite Competitive Soccer Matches

2017 ◽  
Vol 60 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Ian Varley ◽  
Ryan Lewin ◽  
Robert Needham ◽  
Robin T. Thorpe ◽  
Ross Burbeary
Keyword(s):  
Creatine Kinase ◽  
Muscle Soreness ◽  
Soccer Players ◽  
Countermovement Jump ◽  
Jump Performance ◽  
Performance Capacity ◽  
Neuromuscular Performance ◽  
Professional Soccer ◽  
Activity Variables

Abstract The aim of the study was to assess the relationships between match activity variables, subsequent fatigue and neuromuscular performance capacity in elite soccer players. Subjects (n = 10) were professional soccer players participating in the English Championships. Match activity variables and markers of fatigue status were measured before and following two matches. Creatine kinase (CK) and muscle soreness were measured at baseline, immediately following, as well as 40 and 64 h post-match. Countermovement jump performance and perceived ratings of wellness were measured at baseline, then 40 and 64 h post-match. Relationships were shown between CK and the total number of accelerations and decelerations immediately (r = 0.63; large), 40 h (r = 0.45; moderate) and 64 h post-match (r = 0.35; moderate) (p < 0.05). Relationships between CK and total sprint distance (r = 0.39; moderate) and the number of sprints (r = 0.35; moderate) 40 h post-match (p < 0.05) were observed. Furthermore, relationships were shown between the perceived rating of wellness and number of accelerations 40 (r = 0.52; large) and 64 h (r = 0.40; moderate) post-match, sprint distance 40 h post-match (r = 0.40; moderate) and the total number of sprints 40 h post-match (r = 0.51; large) (p < 0.05). The quantification of match activity variables, particularly the total number of accelerations and decelerations and the number of sprints, provides insights into the fatigue status in elite soccer players 40 and 64 h post-match.

scholarly journals The effects of 14-week betaine supplementation on endocrine markers, body composition and anthropometrics in professional youth soccer players: a double blind, randomized, placebo-controlled trial

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Hadi Nobari ◽  
Mehdi Kargarfard ◽  
Vazgen Minasian ◽  
Jason M. Cholewa ◽  
Jorge Pérez-Gómez
Keyword(s):  
Body Composition ◽  
Controlled Trial ◽  
Exercise Program ◽  
Soccer Players ◽  
Double Blind ◽  
Significant Group ◽  
Youth Soccer ◽  
Professional Soccer ◽  
Competitive Season ◽  
Betaine Supplementation

Abstract Objective Betaine supplementation may enhance body composition outcomes when supplemented chronically during an exercise program. The purpose of this study was to evaluate the effect of betaine supplementation on development-related hormones, body composition, and anthropometrics in professional youth soccer players during a competitive season. Methods Twenty-nine players (age, 15.45 ± 0.25 years) were matched based upon position and then randomly assigned to a betaine group (2 g/day; n = 14, BG) or placebo group (PG, n = 15). All subjects participated in team practices, conditioning, and games. If a subject did not participate in a game, a conditioning protocol was used to ensure workload was standardized throughout the 14-week season. Growth hormone (GH), insulin-like growth factor-1 (IGF-1), testosterone, cortisol, height, weight, and body composition were assessed at pre-season (P1), mid-season (P2) and post-season (P3). Anthropometric variables were also measured following a one-year follow-up (F). Results Significant (p < 0.05) group x time interactions were found for testosterone and testosterone to cortisol ratio (T/C). Both variables were greater in BG at P2 and P3 compared to P1, however, the testosterone was less in the PG at P3 compared to P2. There was no significant group by time interactions for GH, IGF-1, lean body mass, or body fat. There was a significant (p < 0.05) group x time interaction in height and weight at F, with the greater increases in BG compared to PG. Conclusion Betaine supplementation increased testosterone levels and T/C ratio in youth professional soccer players during a competitive season. Betaine supplementation had no negative effects on growth (height and weight) and may attenuate reductions in testosterone due to intense training during puberty.

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