@article{Hassan Qader_Al-Khallil_2021, title={Evaluation of the biological rhythm during physical, emotional and mental cycle}, volume={10}, url={https://www.jhse.ua.es/article/view/2015-v10-n2-proc-evaluation-of-the-biological-rhythm-during-phys}, DOI={10.14198/jhse.2015.10.Proc2.11}, abstractNote={Finding the differences in the physical, emotional and metal capabilities at successive measurements according to daily curves of different Biological rhythms (day of birth, day of crest, descending to commencing line, descending  to base line and going back to commencing line). Exploring the effect of measuring in different days of biological rhythm cycles on the correlations among physical, emotional and mental capabilities. Comparing the physical, emotional and mental of day of birth with these capabilities at different biological rhythm stages. The researchers used the descriptive methods. The sample was (24) students, aged (18-22) years. The following tests are used: Running test (50m), standard broad jump, sit-up, running and walking for 12 minutes, zigzag running 4x9 m, Bending the body forward and downward, stability balancing, shooting on interfered circles in handball, emotional tests, attention test to measure mental status by Burdon – Anvimov test. Statistical used, mean, standard deviation, simple and multiple correlation coefficients and t-test were used to analyze the data .The conclusions of study: There are significant differences between biological rhythm stages in flexibility tests between day of birth , day of descending to commencing line in favor of day of birth  ;crest day, day of descending to commencing line in favor of crest day ;and day of ending to commencing line and day of ascending to commencing line in favor of ascending to commencing line. There are significant differences for biological rhythm stages in emotional tests between day of birth, crest day in favor of day of birth and there were no significant differences between the remaining stages. There are significant differences for biological rhythm stages in balance test between day of birth, descending to bottom and ascending to commencing line in favor of these two stages. There are significant differences in sharpness of attention tests on date of crest and ascending to commencing line in favor of ascending to commencing line.}, number={2proc}, journal={Journal of Human Sport and Exercise}, author={Hassan Qader, Azad and Al-Khallil, Wadie’ Yassin M}, year={2021}, month={Sep.}, pages={S712-S722} }