The induction of micronuclei was studied in mouse bone marrow treated or not with 5, 10 and 20 mg/kg b. wt. of Abana (a herbal preparation) before exposure to 0-3 Gy of γ-radiation. Whole-body irradiation of mice resulted in a dose-dependent increase in the frequency of micronuclei. Treatment of mice with various doses of Abana before exposure to different doses of γ-rays resulted in a signific...

Based on Vygotsky’s theory of cognitive development and its concept of zone of proximal development, this study examined how the skill level of a peer tutor affects the achievement motivation of novice learners and their performance in a swimming task. Gender differences were also explored. High school students (N = 48) were assigned in a 2 x 3 (Gender x Tutor skill level: novice vs. intermedia...

Objectives. The purpose of the study was to examine possible correlations and differences of personality and trait anxiety between male and female volleyball players. Methods. The sample consisted of 79 Division A & C volleyball athletes (35 men and 44 women). Personality factors were investigated with the use of IPIP (International Personality Item Pool), whereas for trait anxiety the STAI - ...

Agility is important for sport performance and potentially injury risk; however, factors affecting this motor skill remain unclear. Here, we evaluated the extent to which lower extremity dexterity (LED) and muscle performance were associated with agility. Fourteen male and 14 female soccer athletes participated. Agility was evaluated using a hopping sequence separately with both limbs and with ...

BACKGROUND A valgus lower limb alignment has been noted during noncontact anterior cruciate ligament injuries. A video drop-jump test can indicate an athlete's ability to control lower limb axial alignment in the coronal plane. HYPOTHESES Female athletes have decreased knee separation distances on landing and acceleration; male athletes have a neutrally aligned lower limb position. A neuromus...

This study investigated the effects of three sport-specific high-intensity training units on cardiac biomarker alteration in elite athletes of dragon boating. Thirty six male (age 33 ± 9) and twenty nine female (age 31 ± 8) elite athletes, members of the German national team, were examined in their final training camp preparing for world championship. At two time points blood panels (pre-traini...