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Wyszukujesz frazę "Testosterone" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Effect of bench press at a specified movement tempo on post-exercise testosterone and cortisol levels
Autorzy:
Studencki, Marcin
Ignatjeva, Angelina
Nitychoruk, Magdalena
Gołaś, Artur
Smółka, Wojciech
Maszczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1933110.pdf
Data publikacji:
2021-11-03
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
testosterone
cortisol
movement tempo
bench press
Opis:
Body response is a key element of the periodization of any training unit. The main control systems in the human body are the nervous and endocrine systems. The study aims to examine the effect of bench press at a specified movement tempo on post-exercise blood testosterone and cortisol levels. The study involved 16 men (experience in resistance training 5.5 ± 1.3 years, aged 24 ± 2 years, body weight 86.1 ± 7.2 kg, and 1RM 125 ± 17 kg). The first stage of the test focused on determining the maximum force based on a single bench press with the highest possible external load (1RM). The second stage included the main test, i.e. bench press. The participants were asked to perform 5 sets successively, with an external load of 70% of an individual 1RM and as many repetitions as possible. The tempo of the exercise was precisely specified. The metronome was used to set a bench press tempo. The movement tempo included time under tension (TUT) 2/0/2/0. TUT means the total time of muscle tension during one repetition. The tests showed significant changes in cortisol levels recorded 30 minutes after exercise, amounting to 13.75 (±4.60) at F=9.16 and p=0.006. and 60 minutes after exercise, amounting to 11.37 (±4.17) at F=19.46 and p=0.0002. No significant statistical values were found for testosterone levels. This study brings additional evidence of the importance of hormonal responses in muscle strength training.
Źródło:
Physical Activity Review; 2021, 2, 9; 111-119
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between digit ratio (2D:4D) and phy sical fitness in boys 7 to 13 years
Autorzy:
Eghbali, Ehsan
Powiązania:
https://bibliotekanauki.pl/articles/1031912.pdf
Data publikacji:
2016
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
2D:4D
Children
Handgrip Strength
Physical Fitness.
Testosterone
Opis:
The relative lengths of the index finger to the ring finger (2D:4D) is sexually dimorphic. It is believed that the 2D:4D negatively correlates with prenatal testosterone and positively with prenatal estrogen. Low 2D:4D is related to masculine traits such as aggression, physical fitness and performance in different sports. The aim of this study is to investigate the relation ship between the 2D:4D and physical fitness among 7 to 13 year - old boys. 316 boys were selected, all participants were in pre - pubertal stage. After completing the consent by their parents; height, weight, lengths of the index and ring fingers and physical fitness such as: strength, muscle endurance, power, speed, agility, flexibility and aerobic fitness were measured. The partial correlation coefficients was used to determine association between variables. Data analysis was done by SPSS software, version 20 , and the level of significance was considered as P≤0.05. The results showed that the digit (2D:4D) ratio has no significant correlation with handgrip strength and aerobic fitness (P ˃ 0.05). Also, according to the results, no correlation has been observed between the 2D:4D and muscle endurance, power, speed, agility and flexibility (P ˃ 0.05). It seems that 2D:4D is associated with level of testosterone and prenatal estrogen; this index has no significant correlation with physical fitness in children and ca nnot be used to identify and discover talented individuals for various sporting fields. However, more researches are still needed in this area.
Źródło:
Physical Activity Review; 2016, 4; 154-162
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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