Protective effect by maximal isometric contractions against maximal eccentric exercise-induced muscle damage of the knee extensors

2016 ◽  
Vol 24 (3) ◽  
pp. 228-241 ◽  
Author(s):  
Kuo-Wei Tseng ◽  
Wei-Chin Tseng ◽  
Ming-Ju Lin ◽  
Hsin-Lian Chen ◽  
Kazunori Nosaka ◽  
...  
Keyword(s):  
Protective Effect ◽  
Muscle Damage ◽  
Eccentric Exercise ◽  
Knee Extensors ◽  
Isometric Contractions ◽  
Exercise Induced

scholarly journals Effects of Isometric Contractions on Eccentric Exercise-induced Muscle Damage of the Knee Extensors

2018 ◽  
Vol 50 (5S) ◽  
pp. 677-678
Author(s):  
Kun-Xian Lin ◽  
Hsiu-Hua Wang ◽  
Kuo-Wei Tseng ◽  
Wei-Chin Tseng ◽  
Ming-Ju Lin
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Knee Extensors ◽  
Isometric Contractions ◽  
Exercise Induced

Effect of two maximal isometric contractions on eccentric exercise-induced muscle damage of the elbow flexors

2013 ◽  
Vol 113 (6) ◽  
pp. 1545-1554 ◽  
Author(s):  
Trevor C. Chen ◽  
Hsin-Lian Chen ◽  
Ming-Ju Lin ◽  
Che-Hsiu Chen ◽  
Alan J. Pearce ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Isometric Contractions ◽  
Elbow Flexors ◽  
Exercise Induced

scholarly journals Altered Drop Jump Landing Biomechanics Following Eccentric Exercise-Induced Muscle Damage

Sports ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 24
Author(s):  
Themistoklis Tsatalas ◽  
Evangeli Karampina ◽  
Minas A. Mina ◽  
Dimitrios A. Patikas ◽  
Vasiliki C. Laschou ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Muscle Soreness ◽  
Reaction Force ◽  
Knee Extensors ◽  
Jump Landing ◽  
Landing Biomechanics ◽  
Peak Knee ◽  
Exercise Induced ◽  
Kinematics And Kinetics

Limited research exists in the literature regarding the biomechanics of the jump-landing sequence in individuals that experience symptoms of muscle damage. The present study investigated the effects of knee localized muscle damage on sagittal plane landing biomechanics during drop vertical jump (DVJ). Thirteen regional level athletes performed five sets of 15 maximal eccentric voluntary contractions of the knee extensors of both legs at 60°/s. Pelvic and lower body kinematics and kinetics were measured pre- and 48 h post-eccentric exercise. The examination of muscle damage indicators included isometric torque, muscle soreness, and serum creatine kinase (CK) activity. The results revealed that all indicators changed significantly following eccentric exercise (p < 0.05). Peak knee and hip joint flexion as well as peak anterior pelvic tilt significantly increased, whereas vertical ground reaction force (GRF), internal knee extension moment, and knee joint stiffness significantly decreased during landing (p < 0.05). Therefore, the participants displayed a softer landing pattern following knee-localized eccentric exercise while being in a muscle-damaged state. This observation provides new insights on how the DVJ landing kinematics and kinetics alter to compensate the impaired function of the knee extensors following exercise-induced muscle damage (EIMD) and residual muscle soreness 48 h post-exercise.

scholarly journals Protective Effect Conferred by Isometric Preconditioning Against Slow- and Fast-Velocity Eccentric Exercise-Induced Muscle Damage

2019 ◽  
Vol 10 ◽  
Author(s):  
Renan Vieira Barreto ◽  
Leonardo Coelho Rabello de Lima ◽  
Camila Coelho Greco ◽  
Benedito Sérgio Denadai
Keyword(s):  
Protective Effect ◽  
Muscle Damage ◽  
Eccentric Exercise ◽  
Exercise Induced

scholarly journals Effects of Individualized Ischemic Preconditioning on Protection Against Eccentric Exercise–Induced Muscle Damage: A Randomized Controlled Trial

2021 ◽  
pp. 194173812199541
Author(s):  
Mikhail Santos Cerqueira ◽  
Daniel Kovacs ◽  
Ingrid Martins de França ◽  
Rafael Pereira ◽  
Sinval Bezerra da Nobrega Neto ◽  
...  
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Ischemic Preconditioning ◽  
Muscle Soreness ◽  
Perceived Exertion ◽  
Sham Group ◽  
Pressure Pain Threshold ◽  
Knee Extensors ◽  
Occlusion Pressure ◽  
Exercise Induced

Background: The effects of ischemic preconditioning (IPC) versus a deceptive sham protocol on indirect markers of exercise-induced muscle damage (EIMD) after the application of individualized occlusion pressure were examined. The goal of using a sham protocol is to control for the potential effect of placebo. Hypothesis: IPC would surpass the sham protocol in protecting against EIMD. Study Design: A randomized, double-blinded, clinical trial. Level of Evidence: Level 1. Methods: Thirty healthy young men were randomly assigned to an eccentric exercise for the knee extensor muscles preceded by IPC (4 × 5 minutes of individualized total occlusion pressure) or sham protocol (4 × 5 minutes using 20 mm Hg). Maximal voluntary isometric torque (MVIT), rate of torque development, muscle soreness, pressure pain threshold, knee range of motion, thigh girth, and creatine kinase (CK) activity were assessed before IPC or sham protocol and up to 72 hours after the eccentric EIMD. Affective valence and perceived exertion were also evaluated. Results: MVIT decreased 17.1% in the IPC and 18.1% in the sham groups, with no differences between groups. Differences from baseline were observed in the sham group for muscle soreness at 48 hours ( P < 0.001) and 72 hours ( P = 0.02), and for CK activity at 72 hours ( P = 0.04). Muscle soreness was reduced in the IPC group at 48 hours compared with the sham group (∆ = 15.8 mm; P = 0.008) but without achieving the minimal clinically important difference. IPC induced a smaller perceived exertion than the sham protocol (∆ = 1.1 a.u.; P = 0.02). The remaining outcomes were not statistically different in both groups. Conclusion: IPC does not surpass the sham protocol to protect against mild EIMD of the knee extensors muscles. Clinical Relevance: Although IPC is a noninvasive, low-cost, and easy-to-administer intervention, the IPC effects can, in part, be explained by the placebo effect. In addition, individualized IPC promotes attenuation in perceived exertion during eccentric exercise.

How long does the protective effect on eccentric exercise-induced muscle damage last?

2001 ◽  
Vol 33 (9) ◽  
pp. 1490-1495 ◽  
Author(s):  
KAZUNORI NOSAKA ◽  
KEI SAKAMOTO ◽  
MIKE NEWTON ◽  
PAUL SACCO
Keyword(s):  
Protective Effect ◽  
Muscle Damage ◽  
Eccentric Exercise ◽  
Exercise Induced

scholarly journals Two maximal isometric contractions attenuate the magnitude of eccentric exercise-induced muscle damage

2012 ◽  
Vol 37 (4) ◽  
pp. 680-689 ◽  
Author(s):  
Hsin-Lian Chen ◽  
Kazunori Nosaka ◽  
Alan J. Pearce ◽  
Trevor C. Chen
Keyword(s):  
Muscle Damage ◽  
Eccentric Exercise ◽  
Muscle Soreness ◽  
Muscle Length ◽  
Peak Torque ◽  
Eccentric Contractions ◽  
Control Group ◽  
Isometric Contractions ◽  
Elbow Flexors ◽  
Exercise Induced

This study investigated whether maximal voluntary isometric contractions (MVC-ISO) would attenuate the magnitude of eccentric exercise-induced muscle damage. Young untrained men were placed into one of the two experimental groups or one control group (n = 13 per group). Subjects in the experimental groups performed either two or 10 MVC-ISO of the elbow flexors at a long muscle length (20° flexion) 2 days prior to 30 maximal isokinetic eccentric contractions of the elbow flexors. Subjects in the control group performed the eccentric contractions without MVC-ISO. No significant changes in maximal voluntary concentric contraction peak torque, peak torque angle, range of motion, upper arm circumference, plasma creatine kinase (CK) activity and myoglobin concentration, muscle soreness, and ultrasound echo intensity were evident after MVC-ISO. Changes in the variables following eccentric contractions were smaller (P < 0.05) for the 2 MVC-ISO group (e.g., peak torque loss at 5 days after exercise, 23% ± 3%; peak CK activity, 1964 ± 452 IU·L–1; peak muscle soreness, 46 ± 4 mm) or the 10 MVC-ISO group (13% ± 3%, 877 ± 198 IU·L–1, 30 ± 4 mm) compared with the control (34% ± 4%, 6192 ± 1747 IU·L–1, 66 ± 5 mm). The 10 MVC-ISO group showed smaller (P < 0.05) changes in all variables following eccentric contractions compared with the 2 MVC-ISO group. Therefore, two MVC-ISO conferred potent protective effects against muscle damage, whereas greater protective effect was induced by 10 MVC-ISO, which can be used as a strategy to minimize muscle damage.

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