scholarly journals Preliminary Investigations Into the Effect of Exercise-Induced Muscle Damage on Systemic Extracellular Vesicle Release in Trained Younger and Older Men

2021 ◽  
Vol 12 ◽  
Author(s):  
Yvoni Kyriakidou ◽  
Isabella Cooper ◽  
Igor Kraev ◽  
Sigrun Lange ◽  
Bradley T. Elliott
Keyword(s):  
Muscle Damage ◽  
Muscle Soreness ◽  
Age Groups ◽  
Strength Loss ◽  
Extracellular Vesicle ◽  
Maximal Voluntary Isometric Contraction ◽  
Physically Active ◽  
Exercise Induced ◽  
Exercise Stimulus ◽  
Modal Size

Background: Exercise-induced muscle damage (EIMD) results in transient muscle inflammation, strength loss, and muscle soreness and may cause subsequent exercise avoidance. Research has recently proven that skeletal muscle can also release extracellular vesicles (EVs) into the circulation following a bout of exercise. However, EV’s potential role, including as a biomarker, in the response to eccentric resistance exercise stimulus remains unclear.Methods: Twelve (younger, n=7, 27.0±1.5years and older, n=5, 63.0±1.0years) healthy, physically active males, undertaking moderate, regular physical activity (3–5 times per week) performed a unilateral high intensity eccentric exercise protocol. Venous plasma was collected for assessment of EVs and creatine kinase (CK) prior to EIMD, immediately after EIMD, and 1–72h post-EIMD, and maximal voluntary isometric contraction (MVIC) and delayed onset muscle soreness (DOMS) were assessed at all time points, except 1 and 2h post-EIMD.Results: A significant effect of both time (p=0.005) and group (p<0.001) was noted for MVIC, with younger participants’ MVIC being higher throughout. Whilst a significant increase was observed in DOMS in the younger group (p=0.014) and in the older group (p=0.034) following EIMD, no significant differences were observed between groups. CK was not different between age groups but was altered following the EIMD (main effect of time p=0.026), with increased CK seen immediately post-, at 1 and 2h post-EIMD. EV count tended to be lower in older participants at rest, relative to younger participants (p=0.056), whilst EV modal size did not differ between younger and older participants pre-EIMD. EIMD did not substantially alter EV modal size or EV count in younger or older participants; however, the alteration in EV concentration (ΔCount) and EV modal size (ΔMode) between post-EIMD and pre-EIMD negatively associated with CK activity. No significant associations were noted between MVIC or DOMS and either ΔCount or ΔMode of EVs at any time point.Conclusion: These findings suggest that profile of EV release, immediately following exercise, may predict later CK release and play a role in the EIMD response. Exercise-induced EV release profiles may therefore serve as an indicator for subsequent muscle damage.

scholarly journals The effect of Omega-3 polyunsaturated fatty acid supplementation on exercise-induced muscle damage

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Yvoni Kyriakidou ◽  
Carly Wood ◽  
Chrystalla Ferrier ◽  
Alberto Dolci ◽  
Bradley Elliott
Keyword(s):  
Muscle Damage ◽  
Peak Power ◽  
Muscle Soreness ◽  
Strength Loss ◽  
Peak Power Output ◽  
Omega 3 ◽  
Maximal Voluntary Isometric Contraction ◽  
Tnf Α ◽  
Significant Difference ◽  
Exercise Induced

Abstract Background Exercise-induced muscle damage (EIMD) results in transient muscle inflammation, strength loss, muscle soreness and may cause subsequent exercise avoidance. Omega-3 (n-3) supplementation may minimise EIMD via its anti-inflammatory properties, however, its efficacy remains unclear. Methods Healthy males (n = 14, 25.07 ± 4.05 years) were randomised to 3 g/day n-3 supplementation (N-3, n = 7) or placebo (PLA, n = 7). Following 4 weeks supplementation, a downhill running protocol (60 min, 65% V̇O2max, − 10% gradient) was performed. Creatine kinase (CK), interleukin (IL)-6 and tumour necrosis factor (TNF)-α, perceived muscle soreness, maximal voluntary isometric contraction (MVIC) and peak power were quantified pre, post, and 24, 48 and 72 h post-EIMD. Results Muscle soreness was significantly lower in N-3 vs PLA group at 24 h post-EIMD (p = 0.034). IL-6 was increased in PLA (p = 0.009) but not in N-3 (p = 0.434) following EIMD, however, no significant differences were noted between groups. Peak power was significantly suppressed in PLA relative to pre-EIMD but not in N-3 group at 24 h post-EIMD. However, no significant difference in peak power output was observed between groups. MVIC, CK and TNF-α were altered by EIMD but did not differ between groups. Conclusion N-3 supplementation for 4 weeks may successfully attenuate minor aspects of EIMD. Whilst not improving performance, these findings may have relevance to soreness-associated exercise avoidance.

scholarly journals Quercetin Supplementation Improves Neuromuscular Function Recovery from Muscle Damage

Nutrients ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2850
Author(s):  
Ilenia Bazzucchi ◽  
Federica Patrizio ◽  
Roberta Ceci ◽  
Guglielmo Duranti ◽  
Stefania Sabatini ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Biochemical Parameters ◽  
Strength Loss ◽  
Neuromuscular Function ◽  
Double Blind ◽  
Maximal Voluntary Isometric Contraction ◽  
Velocity Relationship ◽  
Force Velocity ◽  
Exercise Induced

This study was aimed at investigating whether quercetin (Q) may improve the recovery of neuromuscular function and biochemical parameters in the 7 days following an eccentric exercise-induced muscle damage (EEIMD). Sixteen men (25.9 ± 3.3 y) ingested Q (1000 mg/day) or placebo (PLA) for 14 days following a double-blind crossover study design. A neuromuscular (NM) test was performed pre–post, 24 h, 48 h, 72 h, 96 h and 7 days after an intense eccentric exercise. The force–velocity relationship of the elbow flexor muscles and their maximal voluntary isometric contraction (MVIC) were recorded simultaneously to the electromyographic signals (EMG). Pain, joint angle, arm circumference, plasma creatine kinase (CK) and lactate-dehydrogenase (LDH) were also assessed. The results showed that Q supplementation significantly attenuated the strength loss compared to PLA. During the recovery, force–velocity relationship and mean fibers conduction velocity (MFCV) persisted significantly less when participants consumed PLA rather than Q, especially at the highest angular velocities (p < 0.02). A greater increase in biomarkers of damage was also evident in PLA with respect to Q. Q supplementation for 14 days seems able to ameliorate the recovery of eccentric exercise-induced weakness, neuromuscular function impairment and biochemical parameters increase probably due to its strong anti-inflammatory and antioxidant action.

scholarly journals A single dose of histamine-receptor antagonists before downhill running alters markers of muscle damage and delayed-onset muscle soreness

2017 ◽  
Vol 122 (3) ◽  
pp. 631-641 ◽  
Author(s):  
Matthew R. Ely ◽  
Steven A. Romero ◽  
Dylan C. Sieck ◽  
Joshua E. Mangum ◽  
Meredith J. Luttrell ◽  
...  
Keyword(s):  
Blood Flow ◽  
Creatine Kinase ◽  
Muscle Strength ◽  
Muscle Damage ◽  
Muscle Soreness ◽  
Strength Loss ◽  
Histamine Receptor ◽  
Delayed Onset ◽  
Markers Of Inflammation ◽  
Exercise Induced

Histamine contributes to elevations in skeletal muscle blood flow following exercise, which raises the possibility that histamine is an important mediator of the inflammatory response to exercise. We examined the influence of antihistamines on postexercise blood flow, inflammation, muscle damage, and delayed-onset muscle soreness (DOMS) in a model of moderate exercise-induced muscle damage. Subjects consumed either a combination of fexofenadine and ranitidine (blockade, n = 12) or nothing (control, n = 12) before 45 min of downhill running (−10% grade). Blood flow to the leg was measured before and throughout 120 min of exercise recovery. Markers of inflammation, muscle damage, and DOMS were obtained before and at 0, 6, 12, 24, 48, and 72 h postexercise. At 60 min postexercise, blood flow was reduced ~29% with blockade compared with control ( P < 0.05). Markers of inflammation were elevated after exercise (TNF-ɑ, IL-6), but did not differ between control and blockade. Creatine kinase concentrations peaked 12 h after exercise, and the overall response was greater with blockade (18.3 ± 3.2 kU·l−1·h−1) compared with control (11.6 ± 2.0 kU·l−1·h−1; P < 0.05). Reductions in muscle strength in control (−19.3 ± 4.3% at 24 h) were greater than blockade (−7.8 ± 4.8%; P < 0.05) and corresponded with greater perceptions of pain/discomfort in control compared with blockade. In conclusion, histamine-receptor blockade reduced postexercise blood flow, had no effect on the pattern of inflammatory markers, increased serum creatine kinase concentrations, attenuated muscle strength loss, and reduced pain perception following muscle-damaging exercise. NEW & NOTEWORTHY Histamine appears to be intimately involved with skeletal muscle during and following exercise. Blocking histamine’s actions during muscle-damaging exercise, via common over-the-counter antihistamines, resulted in increased serum creatine kinase, an indirect marker of muscle damage. Paradoxically, blocking histamine’s actions attenuated muscle strength loss and reduced perceptions of muscle pain for 72 h following muscle-damaging exercise. These results indicate that exercise-induced histamine release may have a broad impact on protecting muscle from exercise-induced damage.

Aging and Recovery After Resistance-Exercise-Induced Muscle Damage: Current Evidence and Implications for Future Research

2020 ◽  
pp. 1-8
Author(s):  
John F.T. Fernandes ◽  
Kevin L. Lamb ◽  
Jonathan P. Norris ◽  
Jason Moran ◽  
Benjamin Drury ◽  
...  
Keyword(s):  
Resistance Training ◽  
Muscle Damage ◽  
Muscle Soreness ◽  
Current Knowledge ◽  
Age Groups ◽  
Current Evidence ◽  
Future Research ◽  
Exercise Induced ◽  
Aging Muscle ◽  
Older Populations

Aging is anecdotally associated with a prolonged recovery from resistance training, though current literature remains equivocal. This brief review considers the effects of resistance training on indirect markers of muscle damage and recovery (i.e., muscle soreness, blood markers, and muscle strength) in older males. With no date restrictions, four databases were searched for articles relating to aging, muscle damage, and recovery. Data from 11 studies were extracted for review. Of these, four reported worse symptoms in older compared with younger populations, while two have observed the opposite, and the remaining studies (n = 6) proposed no differences between age groups. It appears that resistance training can be practiced in older populations without concern for impaired recovery. To improve current knowledge, researchers are urged to utilize more ecologically valid muscle-damaging bouts and investigate the mechanisms which underpin the recovery of muscle soreness and strength after exercise in older populations.

scholarly journals The Effects of Quercetin Supplementation on Eccentric Exercise-Induced Muscle Damage

Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 205 ◽  
Author(s):  
Ilenia Bazzucchi ◽  
Federica Patrizio ◽  
Roberta Ceci ◽  
Guglielmo Duranti ◽  
Paolo Sgrò ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Strength Loss ◽  
Simultaneous Recording ◽  
Isometric Strength ◽  
Double Blind ◽  
Maximal Voluntary Isometric Contraction ◽  
Velocity Relationship ◽  
Force Velocity ◽  
Exercise Induced

The aim of the present investigation was to test the hypothesis that quercetin (Q) may prevent the strength loss and neuromuscular impairment associated with eccentric exercise-induced muscle damage (EEIMD). Twelve young men (26.1 ± 3.1 years) ingested either Q (1000 mg/day) or placebo (PLA) for 14 days using a randomized, double-blind, crossover study design. Participants completed a comprehensive neuromuscular (NM) evaluation before, during and after an eccentric protocol able to induce a severe muscle damage (10 sets of 10 maximal lengthening contractions). The NM evaluation comprised maximal voluntary isometric contraction (MVIC) and force–velocity relationship assessments with simultaneous recording of electromyographic signals (EMG) from the elbow flexor muscles. Soreness, resting arm angle, arm circumference, plasma creatine kinase (CK) and lactate dehydrogenase (LDH) were also assessed. Q supplementation significantly increased the isometric strength recorded during MVIC compared to baseline (+4.7%, p < 0.05). Moreover, the torque and muscle fiber conduction velocity (MFCV) decay recorded during the eccentric exercise was significant lower in Q compared to PLA. Immediately after the EEIMD, isometric strength, the force–velocity relationship and MFCV were significantly lower when participants were given PLA rather than Q. Fourteen days of Q supplementation seems able to attenuate the severity of muscle weakness caused by eccentric-induced myofibrillar disruption and sarcolemmal action potential propagation impairment.

scholarly journals A Comparison of Exercise-Induced Muscle Damage Following Maximal Eccentric Contractions in Men and Boys

2017 ◽  
Vol 29 (3) ◽  
pp. 316-325 ◽  
Author(s):  
Chariklia K. Deli ◽  
Ioannis G. Fatouros ◽  
Vassilis Paschalis ◽  
Kalliopi Georgakouli ◽  
Athanasios Zalavras ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Muscle Soreness ◽  
Isometric Force ◽  
Age Groups ◽  
Eccentric Contractions ◽  
Knee Extensors ◽  
Type Method ◽  
Healthy Men ◽  
Delayed Onset ◽  
Exercise Induced

Purpose:Research regarding exercise-induced muscle-damage mainly focuses on adults. The present study examined exercise-induced muscle-damage responses in adults compared with children.Method:Eleven healthy boys (10–12 y) and 15 healthy men (18–45 y) performed 5 sets of 15 maximal eccentric contractions of the knee extensors. Range of motion (ROM), delayed onset muscle soreness (DOMS) during squat and walking, and peak isometric, concentric and eccentric torque were assessed before, post, 24, 48, 72, and 96 hr postexercise. Creatine kinase (CK) activity was assessed before and 72 hr postexercise.Results:Eccentric exercise resulted in DOMS during squat that persisted for up to 96h in men, and 48 hr in boys (p < .05), and DOMS during walking that persisted for up to 72 hr in men, and 48 hr in boys (p < .01). The ROM was lower in both age groups 48 hr postexercise (p < .001). Isometric (p < .001), concentric (p < .01) and eccentric (p < .01) force decreased post, and up to 48 hr postexercise in men. Except for a reduction in isometric force immediately after exercise, no other changes occurred in boys’ isokinetic force. CK activity increased in men at 72 hr postexercise compared with pre exercise levels (p = .05).Conclusion:Our data provide further confirmation that children are less susceptible to exercise-induced muscle damage compared with adults.

scholarly journals TRIM63 (MuRF-1) gene polymorphism is associated with biomarkers of exercise-induced muscle damage

2018 ◽  
Vol 50 (3) ◽  
pp. 142-143 ◽  
Author(s):  
P. Baumert ◽  
M. J. Lake ◽  
B. Drust ◽  
C. E. Stewart ◽  
R. M. Erskine ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Muscle Soreness ◽  
Strength Loss ◽  
Knee Extension ◽  
Strenuous Exercise ◽  
Variable Response ◽  
Gene Encoding ◽  
Single Nucleotide ◽  
Exercise Induced ◽  
Healthy Participants

Unaccustomed strenuous exercise can lead to muscle strength loss, inflammation and delayed-onset muscle soreness, which may be influenced by genetic variation. We investigated if a missense single nucleotide polymorphism (A>G, rs2275950 ) within the TRIM63 gene (encoding MuRF-1 and potentially affecting titin mechanical properties) was associated with the variable response to unaccustomed eccentric exercise. Sixty-five untrained, healthy participants (genotyped for rs2275950 : AA, AG, and GG) performed 120 maximal eccentric knee extensions (ECC) to induce muscle damage. Isometric and isokinetic maximal voluntary knee extension contractions (MVCs) and muscle soreness were assessed before, immediately after, and 48 h after ECC. AA homozygotes were consistently stronger [baseline isometric MVC: 3.23 ± 0.92 Nm/kg (AA) vs. 2.09 ± 0.67 Nm/kg (GG); P = 0.006] and demonstrated less muscle soreness over time ( P = 0.022) compared with GG homozygotes. This may be explained by greater titin stiffness in AA homozygotes, leading to intrinsically stronger muscle fibers that are more resistant to eccentric damaging contractions.

Predictive value of strength loss as an indicator of muscle damage across multiple drop jumps

2011 ◽  
Vol 36 (3) ◽  
pp. 353-360 ◽  
Author(s):  
Albertas Skurvydas ◽  
Marius Brazaitis ◽  
Tomas Venckūnas ◽  
Sigitas Kamandulis
Keyword(s):  
Muscle Damage ◽  
Predictive Value ◽  
Time Course ◽  
Muscle Soreness ◽  
Low Frequency ◽  
Knee Extensor ◽  
Strength Loss ◽  
Drop Jumps ◽  
Isokinetic Torque ◽  
Exercise Induced

The aim of the present study was to compare the time-course of indirect symptoms of exercise-induced muscle damage after 50 and 100 drop jumps. A high-force, low intensity exercise protocol was used to avoid discrepancies regarding metabolic fatigue immediately after exercise. Healthy untrained men performed 50 (“50 group”, n = 13) or 100 (“100 group”, n = 13) intermittent (30-s interval between each jump) drop jumps, respectively, from the height of 0.5 m with a counter-movement to a 90° knee flexion angle and immediate maximal rebound. Voluntary and electrically evoked knee extensor strength was assessed using an isokinetic dynamometer immediately before and at 2 min after exercise, as well as 3, 7, and 14 days after exercise. Creatine kinase (CK) activity and muscle soreness within 7 days after exercise were also determined. The results showed that the decrease in voluntary isometric and isokinetic torque as well as 100 Hz stimulation torque at the end of the 50 and 100 drop jumps was very similar, while substantial differences were found in low-frequency fatigue, shift in optimal knee joint angle, muscle soreness, and CK activity. In addition, there was slower muscle strength recovery after the 100 drop jumps. It is concluded that the predictive value of strength loss immediately after exercise as an indicator of muscle damage decreases as the jump number increases. Still, stimuli must be large enough for muscle torque to reach the reduction plateau. Therefore, magnitude of exercise becomes a major factor in accuracy of muscle damage predictions.

scholarly journals Effects of Transdermal Methylsulfonylmethane on Muscle Damage and Recovery Following Eccentric Exercise

2021 ◽  
Vol 30 (2) ◽  
pp. 158-166
Author(s):  
Hyeon-deok Jo ◽  
Choun-sub Kim ◽  
Maeng-kyu Kim
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Muscle Soreness ◽  
Random Order ◽  
Experimental Session ◽  
Maximal Voluntary Isometric Contraction ◽  
Positive Effects ◽  
Transdermal Application ◽  
Before And After ◽  
Exercise Induced

PURPOSE:The present study aimed to investigate the effects of transdermal application of methylsulfonylmethane (MSM) on muscle damage and recovery following eccentric exercise in young men.METHODS: Eleven college-aged men without any cardiovascular or orthopedic disorders underwent two sessions consisting of a control session (CS) and an experimental session (ES) in a random order with at least 2 weeks of wash-out between the sessions. The participants performed 30 maximal eccentric exercises involving their non-dominant elbow flexors in each session. Circumference, muscle soreness, range of motion, maximal voluntary isometric contraction (MVIC), and muscular echo intensity (EI) were measured to evaluate the changes in the level of exercise-induced muscle damage (EIMD). All measurements were performed at 24, 48, 72, and 96 hours after exercise and also immediately before and after exercise.RESULTS:Transdermal application of MSM in ES attenuated muscle swelling and decreased MVIC after eccentric exercise when compared with CS. Muscle soreness and EI tended to increase less rapidly and decrease more rapidly in ES than in CS.CONCLUSIONS: Transdermal application of MSM may induce relatively positive effects on EIMD and recovery following eccentric exercise when compared with the treatment that has been widely used previously.

scholarly journals El masaje en la prevención y tratamiento del dolor muscular tardío: una revisión sistemática actualizada

2019 ◽  
Vol 6 (3) ◽  
pp. 38
Author(s):  
R Candia Luján ◽  
RA Paredes Carrera ◽  
O Costa Moreira ◽  
KF Candia Sosa ◽  
JA De Paz Fernández
Keyword(s):  
Muscle Damage ◽  
Muscle Soreness ◽  
Web Of Science ◽  
Delayed Onset Muscle Soreness ◽  
Delayed Onset ◽  
Palabras Clave ◽  
Revisión Sistemática ◽  
Exercise Induced

El masaje es una de las terapias más utilizadas para aliviar el dolor muscular tardío (DMT). El objetivo del presente estudio fue determinar la efectividad del masaje en el tratamiento del DMT, para lo cual se llevó a cabo una revisión sistemática en las bases de datos, Pubmed, Scopus, SportDiscus, Web of Science y el buscador Google académico, usando las palabras clave delayed onset muscle soreness y exercise induced muscle damage combinado con massage. Se incluyeron en el estudio 23 artículos en los cuales el 78% mostró disminución del DMT mientras que en el restante 22% no hubo mejoras o bien empeoró. El análisis de los estudios permite concluir que el masaje es una terapia efectiva en el tratamiento del dolor muscular tardío.

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