scholarly journals Acute Consumption of Varied Doses of Cocoa Flavanols Does Not Influence Exercise-Induced Muscle Damage

2020 ◽  
Vol 30 (5) ◽  
pp. 338-344
Author(s):  
Liam D. Corr ◽  
Adam Field ◽  
Deborah Pufal ◽  
Jenny Killey ◽  
Tom Clifford ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Visual Analog Scale ◽  
Controlled Trial ◽  
High Dose ◽  
Lower Extremity Function ◽  
Muscle Recovery ◽  
Analog Scale ◽  
Maximal Voluntary Isometric Contraction ◽  
Exercise Induced ◽  
Cocoa Flavanols

Polyphenol consumption has become a popular method of trying to temper muscle damage. Cocoa flavanols (CF) have attracted attention due to their high polyphenol content and palatability. As such, this study will investigate whether an acute dose of CF can aid recovery following exercise-induced muscle damage. The study was a laboratory-based, randomized, single-blind, nutrient-controlled trial involving 23 participants (13 females and 10 males). Participants were randomized into either control ∼0 mg CF (n = 8, four females); high dose of 830 mg CF (CF830, n = 8, five females); or supra dose of 1,245 mg CF (CF1245, n = 7, four females). The exercise-induced muscle damage protocol consisted of five sets of 10 maximal concentric/eccentric hamstring curls and immediately consumed their assigned drink following completion. To measure muscle recovery, maximal voluntary isometric contraction (MVIC) of the knee flexors at 60° and 30°, a visual analog scale (VAS), and lower-extremity function scale were taken at baseline, immediately, 24-, 48-, and 72-hr postexercise-induced muscle damage. There was a main effect for time for all variables (p < .05). However, no significant differences were observed between groups for all measures (p ≥ .17). At 48 hr, there were large effect sizes between control and CF1245 for MVIC60 (p = .17, d = 0.8); MVIC30 (p = .26, d = 0.8); MVIC30 percentage change (p = .24 d = 0.9); and visual analog scale (p = .25, d = 0.9). As no significant differences were observed following the consumption of CF, there is reason to believe that CF offer no benefit for muscle recovery when ingested acutely.

scholarly journals The effects of cocoa flavanols on indices of muscle recovery and exercise performance: a narrative review

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Liam D. Corr ◽  
Adam Field ◽  
Deborah Pufal ◽  
Tom Clifford ◽  
Liam D. Harper ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Muscle Damage ◽  
Exercise Performance ◽  
Muscle Function ◽  
Muscle Soreness ◽  
Narrative Review ◽  
Muscle Recovery ◽  
Exercise Induced ◽  
The Impact ◽  
Cocoa Flavanols

Abstract Exercise-induced muscle damage (EIMD) is associated with oxidative stress and inflammation, muscle soreness, and reductions in muscle function. Cocoa flavanols (CF) are (poly)phenols with antioxidant and anti-inflammatory effects and thus may attenuate symptoms of EIMD. The purpose of this narrative review was to collate and evaluate the current literature investigating the effect of CF supplementation on markers of exercise-induced oxidative stress and inflammation, as well as changes in muscle function, perceived soreness, and exercise performance. Acute and sub-chronic intake of CF reduces oxidative stress resulting from exercise. Evidence for the effect of CF on exercise-induced inflammation is lacking and the impact on muscle function, perceived soreness and exercise performance is inconsistent across studies. Supplementation of CF may reduce exercise-induced oxidative stress, with potential for delaying fatigue, but more evidence is required for any definitive conclusions on the impact of CF on markers of EIMD. Graphic abstract

Comparison of the symptoms of exercise-induced muscle damage after an initial and repeated bout of plyometric exercise in men and boys

2005 ◽  
Vol 99 (3) ◽  
pp. 1174-1181 ◽  
Author(s):  
Vicky Marginson ◽  
Ann V. Rowlands ◽  
Nigel P. Gleeson ◽  
Roger G. Eston
Keyword(s):  
Muscle Damage ◽  
Visual Analog Scale ◽  
Activity Patterns ◽  
Isometric Strength ◽  
Countermovement Jump ◽  
Analog Scale ◽  
Squat Jump ◽  
Plyometric Exercise ◽  
Exercise Induced ◽  
Repeated Bout

The purpose of this study was to compare symptoms of exercise-induced muscle damage after an initial and repeated bout of plyometric exercise in men and boys. Ten boys (9–10 yr) and 10 men (20–29 yr) completed two bouts of eight sets of 10 plyometric jumps, 2 wk apart. Perceived soreness (0–10, visual analog scale), isometric strength of the quadriceps at six knee flexion angles, and countermovement jump and squat jump height were assessed before and at 30 min, 24 h, 48 h, and 72 h after each bout. All variables followed the expected patterns of change in men, with soreness peaking at 24–48 h (5.8 ± 1.7) and decrements in muscle function peaking at 30 min after the first bout (73–85% of baseline scores). Symptoms remained for 72 h after the first bout in men. In boys, symptoms were much less severe and peaked at 30 min (visual analog scale = 2.1 ± 1.8, functional decrements 87–92% of baseline) and, with the exception of soreness, returned to baseline after 24 h. After the second bout of plyometric exercise, the level of soreness and decrements in countermovement jump, squat jump, and isometric strength were lower, although the effect was stronger in men, in all cases. The results of this study suggest that although children may experience symptoms of muscle damage after intensive plyometric exercise, they are much less severe. A prior bout of plyometric exercise also appears to provide children with some protection from soreness after a subsequent bout of plyometric exercise. Explanations for milder symptoms of exercise-induced muscle damage in children include greater flexibility leading to less overextension of sarcomeres during eccentric exercise, fewer fast-twitch muscle fibers, and greater and perhaps more varied habitual physical activity patterns.

scholarly journals The effects of one session of roller massage on recovery from exercise-induced muscle damage: A randomized controlled trial

2020 ◽  
Vol 18 (3) ◽  
pp. 148-154
Author(s):  
Flávia V.A. Medeiros ◽  
Martim Bottaro ◽  
Wagner R. Martins ◽  
Deise L.F. Ribeiro ◽  
Emmanuela B.A. Marinho ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Muscle Damage ◽  
Controlled Trial ◽  
Randomized Controlled ◽  
Exercise Induced

scholarly journals Strength-Training Protocols to Improve Deficits in Participants With Chronic Ankle Instability: A Randomized Controlled Trial

2015 ◽  
Vol 50 (1) ◽  
pp. 36-44 ◽  
Author(s):  
Emily A. Hall ◽  
Carrie L. Docherty ◽  
Janet Simon ◽  
Jackie J. Kingma ◽  
Joanne C. Klossner
Keyword(s):  
Strength Training ◽  
Visual Analog Scale ◽  
Ankle Instability ◽  
Controlled Trial ◽  
Chronic Ankle Instability ◽  
Control Group ◽  
Analog Scale ◽  
Protocol Group ◽  
Proprioceptive Neuromuscular Facilitation ◽  
Hop Test

Context: Although lateral ankle sprains are common in athletes and can lead to chronic ankle instability (CAI), strength-training rehabilitation protocols may improve the deficits often associated with CAI. Objective: To determine whether strength-training protocols affect strength, dynamic balance, functional performance, and perceived instability in individuals with CAI. Design: Randomized controlled trial. Setting: Athletic training research laboratory. Patients or Other Participants: A total of 39 individuals with CAI (17 men [44%], 22 women [56%]) participated in this study. Chronic ankle instability was determined by the Identification of Functional Ankle Instability Questionnaire, and participants were randomly assigned to a resistance-band–protocol group (n = 13 [33%] age = 19.7 ± 2.2 years, height = 172.9 ± 12.8 cm, weight = 69.1 ± 13.5 kg), a proprioceptive neuromuscular facilitation strength-protocol group (n = 13 [33%], age = 18.9 ± 1.3 years, height = 172.5 ± 5.9 cm, weight = 72.7 ± 14.6 kg), or a control group (n = 13 [33%], age = 20.5 ± 2.1 years, height = 175.2 ± 8.1 cm, weight = 70.2 ± 11.1 kg). Intervention(s): Both rehabilitation groups completed their protocols 3 times/wk for 6 weeks. The control group did not attend rehabilitation sessions. Main Outcome Measure(s): Before the interventions, participants were pretested by completing the figure-8 hop test for time, the triple-crossover hop test for distance, isometric strength tests (dorsiflexion, plantar flexion, inversion, and eversion), the Y-Balance test, and the visual analog scale for perceived ankle instability. Participants were again tested 6 weeks later. We conducted 2 separate, multivariate, repeated-measures analyses of variance, followed by univariate analyses on any significant findings. Results: The resistance-band protocol group improved in strength (dorsiflexion, inversion, and eversion) and on the visual analog scale (P &lt; .05); the proprioceptive neuromuscular facilitation group improved in strength (inversion and eversion) and on the visual analog scale (P &lt; .05) as well. No improvements were seen in the triple-crossover hop or the Y-Balance tests for either intervention group or in the control group for any dependent variable (P &gt; .05). Conclusions: Although the resistance-band protocol is common in rehabilitation, the proprioceptive neuromuscular facilitation strength protocol is also an effective treatment to improve strength in individuals with CAI. Both protocols showed clinical benefits in strength and perceived instability. To improve functional outcomes, clinicians should consider using additional multiplanar and multijoint exercises.

scholarly journals The Effect of 1,8-Cineole Inhalation on Preoperative Anxiety: A Randomized Clinical Trial

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Ka Young Kim ◽  
Hyo Jin Seo ◽  
Sun Seek Min ◽  
Mira Park ◽  
Geun Hee Seol
Keyword(s):  
Visual Analog Scale ◽  
Controlled Trial ◽  
Major Constituent ◽  
Control Group ◽  
Analog Scale ◽  
Almond Oil ◽  
Eucalyptus Oil ◽  
Significant Difference ◽  
Before And After ◽  
Selective Nerve Root Block

The aim of this study was to investigate the effect of inhalation of eucalyptus oil and its constituents on anxiety in patients before selective nerve root block (SNRB). This study was a randomized controlled trial carried out in 62 patients before SNRB. The patients were randomized to inhale limonene, 1,8-cineole, or eucalyptus oil, each at concentrations of 1% vol/vol in almond oil or almond oil (control). Anxiety-visual analog scale (A-VAS), state-trait anxiety inventory (STAI), profile of mood states (POMS), pain-visual analog scale (P-VAS), blood pressure, and pulse rate were measured before and after inhalation prior to SNRB. Measures of anxiety, including A-VAS (P<0.001), STAI (P=0.005), and POMS (P<0.001), were significantly lower in 1,8-cineole than in the control group and significantly greater in 1,8-cineole than in the eucalyptus group in A-VAS. P-VAS was significantly lower after than before inhalation of limonene, 1,8-cineole, and eucalyptus, despite having no significant difference in the four groups compared with control group. 1,8-Cineole, a major constituent of eucalyptus, was effective in decreasing anxiety before SNRB. The present findings suggest that inhalation of 1,8-cineole may be used to relieve anxiety before, during, and after various operations, in addition to SNRB.

Effects of roller massager on muscle recovery after exercise-induced muscle damage

2017 ◽  
Vol 36 (1) ◽  
pp. 56-63 ◽  
Author(s):  
Nuno Casanova ◽  
Joana F. Reis ◽  
João R. Vaz ◽  
Rita Machado ◽  
Bruno Mendes ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Muscle Recovery ◽  
Exercise Induced
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