Skeletal Muscle Contraction Time and Tone Decrease After 8 Weeks of Plyometric Training

2017 ◽  
Vol 31 (6) ◽  
pp. 1610-1619 ◽  
Author(s):  
Damir Zubac ◽  
Boštjan Šimunič
Keyword(s):  
Skeletal Muscle ◽  
Muscle Contraction ◽  
Contraction Time ◽  
Plyometric Training ◽  
Skeletal Muscle Contraction

scholarly journals Caffeine-Induced Effects on Human Skeletal Muscle Contraction Time and Maximal Displacement Measured by Tensiomyography

Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 815
Author(s):  
Przemysław Domaszewski ◽  
Paweł Pakosz ◽  
Mariusz Konieczny ◽  
Dawid Bączkowicz ◽  
Ewa Sadowska-Krępa
Keyword(s):  
Skeletal Muscle ◽  
Muscle Activation ◽  
Electric Pulse ◽  
Professional Athletes ◽  
Mechanical Activity ◽  
The Novel ◽  
Contraction Time ◽  
Novel Approach ◽  
Skeletal Muscle Contraction ◽  
Maximal Displacement

Studies on muscle activation time in sport after caffeine supplementation confirmed the effectiveness of caffeine. The novel approach was to determine whether a dose of 9 mg/kg/ body mass (b.m.) of caffeine affects the changes of contraction time and the displacement of electrically stimulated muscle (gastrocnemius medialis) in professional athletes who regularly consume products rich in caffeine and do not comply with the caffeine discontinuation period requirements. The study included 40 professional male handball players (age = 23.13 ± 3.51, b.m. = 93.51 ± 15.70 kg, height 191 ± 7.72, BMI = 25.89 ± 3.10). The analysis showed that in the experimental group the values of examined parameters were significantly reduced (p ≤ 0.001) (contraction time: before = 20.60 ± 2.58 ms/ after = 18.43 ± 3.05 ms; maximal displacement: before = 2.32 ± 0.80 mm/after = 1.69 ± 0.51 mm). No significant changes were found in the placebo group. The main achievement of this research was to demonstrate that caffeine at a dose of 9 mg/kg in professional athletes who regularly consume products rich in caffeine has a direct positive effect on the mechanical activity of skeletal muscle stimulated by an electric pulse.

Thermodynamic and Mechanical Properties of Skeletal Muscle Contraction

2005 ◽  
Vol 26 (3) ◽  
pp. 827-835 ◽  
Author(s):  
Yu. I. Prylutskyy ◽  
A. M. Shut ◽  
M. S. Miroshnychenko ◽  
A. D. Suprun
Keyword(s):  
Mechanical Properties ◽  
Skeletal Muscle ◽  
Muscle Contraction ◽  
Skeletal Muscle Contraction

Modulation effects of cordycepin on the skeletal muscle contraction of toad gastrocnemius muscle

2014 ◽  
Vol 726 ◽  
pp. 9-15 ◽  
Author(s):  
Li-Hua Yao ◽  
Wei Meng ◽  
Rong-Feng Song ◽  
Qiu-Ping Xiong ◽  
Wei Sun ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Muscle Contraction ◽  
Gastrocnemius Muscle ◽  
Skeletal Muscle Contraction
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