An optimal protocol for dynamic stretching to improve explosive performance

2014 ◽  
Vol 3 (1) ◽  
pp. 121-129 ◽  
Author(s):  
Taichi Yamaguchi ◽  
Kojiro Ishii
Keyword(s):  
Dynamic Stretching ◽  
Explosive Performance ◽  
Optimal Protocol

Acute effect of dynamic stretching or running on endurance running performance in well-trained male runners

2020 ◽  
Vol 179 (1-2) ◽  
Author(s):  
Taichi Yamaguchi ◽  
Kazuki Takizawa ◽  
Keisuke Shibata ◽  
Nobuyasu Tomabechi ◽  
Mina Samukawa ◽  
...  
Keyword(s):  
Acute Effect ◽  
Endurance Running ◽  
Running Performance ◽  
Dynamic Stretching ◽  
Endurance Running Performance

Simultaneous Determination of Methocarbamol and Paracetamol in the Presence of Three Related Substances by Ultra Performance Liquid Chromatography

2019 ◽  
Vol 15 (5) ◽  
pp. 505-510
Author(s):  
Yanjuan Zheng ◽  
Qiushi Peng ◽  
Rui Dong ◽  
Tingyu Chen ◽  
Yi Bao ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Pharmaceutical Preparations ◽  
Gradient Elution ◽  
Ultra Performance Liquid Chromatography ◽  
Related Substances ◽  
Bulk Powder ◽  
Highly Sensitive ◽  
Optimal Protocol ◽  
Acquity Uplc

Introduction: A rapid, and accurate Ultra Performance Liquid Chromatography (UPLC) method was developed to simultaneously analyze Methocarbamol, Paracetamol and the related substances Materials and Methods: Waters ACQUITY UPLC® BEH Phenyl C18 column was used in conjunction with UV detection at 225nm. Gradient elution with 0.05M, pH 6 phosphate buffer and acetonitrile flow at 0.3mL /min rate were used to separate the substances. The retention times for 4-Aminopheno, Paracetamol, Guaifenesin, Methocarbamol, and 4-Chloroacetanilide were 1.319 minute, 2.224 minute, 4.467 minute, 4.769 minute and 5.433 minute respectively. The concentration was linear in the range of 2-100 µg/ml for Methocarbamol, and 1-100 µg/mL for Paracetamol. The percentage recoveries were between 99.28±1.23% to 100.57±0.99% for Methocarbamol, and between 99.08±1.23% to 101.23±1.39% for Paracetamol. Results and Discussion: The validated optimal protocol is robust and accurate for simultaneous analysis of Methocarbamol, Paracetamol and the related substances, applicable for bulk powder as well as pharmaceutical formulation. Conclusion: In this paper, a highly sensitive, accurate, and precise UPLC method with UV-Vis detection was developed and validated for quality control of MET and PAR in bulk as well as in pharmaceutical preparations.

Optimization of ultraviolet irradiation of Clarias gariepinus (Burchell, 1822) eggs for androgen production

Zygote ◽  
2021 ◽  
pp. 1-6
Author(s):  
Victor Tosin Okomoda ◽  
Haziqah Jumahat Nursyaza ◽  
Ijabo Oga Samuel ◽  
Anuar Hassan ◽  
Abraham Sunday Oladimeji ◽  
...  
Keyword(s):  
Survival Rate ◽  
Uv Irradiation ◽  
Uv Light ◽  
Clarias Gariepinus ◽  
African Catfish ◽  
Chromosome Counting ◽  
Complete Inactivation ◽  
Cell Cleavage ◽  
Optimal Protocol ◽  
Prolonged Duration

Summary The optimum distance and duration of ultraviolet (UV) irradiation for the complete inactivation of African catfish Clarias gariepinus egg nucleus was investigated in this study. The UV light was suspended above the unfertilized eggs at four distances (5, 10, 20 and 30 cm) and for five durations (1, 2, 3, 4 and 5 min). Then, the irradiated eggs were activated with sperm from diploid C. gariepinus and cold shocked at 5°C for 5 min just moments before cell cleavage. Ploidy analysis was performed using karyotype chromosome counting. The results obtained suggested that the further the distance, the better the hatchability rate, however prolonged duration seemed to significantly reduced hatchability. All treatments with surviving progenies at the end of the study showed evidence of successfully diploid gynogen (2n = 56) induction at different percentages. However, the optimal protocol that gave a moderately high hatchability/survival rate and completely induced gynogens was exposure of the eggs to UV irradiation at 20 cm for 1 min. It was concluded that the distance and duration of UV irradiation affects gynogenetic induction in African catfish C. gariepinus.

scholarly journals Acute effect of static and dynamic stretching on tone and elasticity of hamstring muscle and on vertical jump performance in track-and-field athletes

2014 ◽  
Vol 20 (0) ◽  
pp. 48 ◽  
Author(s):  
Teet Meerits ◽  
Sebastian Bacchieri ◽  
Mati Pääsuke ◽  
Jaan Ereline ◽  
Antonio Cicchella ◽  
...  
Keyword(s):  
Vertical Jump ◽  
Acute Effect ◽  
Track And Field ◽  
Hamstring Muscle ◽  
Jump Performance ◽  
Dynamic Stretching

scholarly journals Effect of Static and Dynamic Stretching on the Diurnal Variations of Jump Performance in Soccer Players

PLoS ONE ◽  
2013 ◽  
Vol 8 (8) ◽  
pp. e70534 ◽  
Author(s):  
Hamdi Chtourou ◽  
Asma Aloui ◽  
Omar Hammouda ◽  
Anis Chaouachi ◽  
Karim Chamari ◽  
...  
Keyword(s):  
Diurnal Variations ◽  
Soccer Players ◽  
Jump Performance ◽  
Dynamic Stretching

Shock Waves and Detonations, Explosive Performance

2018 ◽  
pp. 87-142
Author(s):  
Per-Anders Persson ◽  
Roger Holmberg ◽  
Jaimin Lee
Keyword(s):  
Shock Waves ◽  
Explosive Performance
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