دراسة مقارنة بين السيدات الممارسات لأنواع مختلفة من النشاط الرياضي لاستجابة مستوى هرمون البرولاكتين بالبلازما و معدل النبض لجهد هوائي متدرج

Abstract EN

The research aimed to identify the response of the plasma hormone prolactin level and heart rate to the aerobic stress in women practicing sport (female students at College of Education) and its response among handball female players., and the differences between two groups in response to hormone level and heart rate for gradual aerobic stress.

The two groups underwent to the test of aerobic stress of gradual intensity ,which is walking on a fixed treadmill initially at a height of 4% and at a speed of 5.6 km / h and after every two minutes, the regression is increased 2% to the point of reaching 10% and then the speed is increased by 1.6 km / h and the test continues until fatigue is reached and then the venous blood is drawn from the elbow immediately after stress.

The results of the test obtained an increase in the proportion of the hormone prolocaine in the two samples of practice from 88.83 to 118.17 with the heart rate increased from 75.5 to 107.67 while the female athletes sample had a high value of prolactin 96.67 to arithmetic mean 183.33 with increase of heart rate 70.33 to 128.17.

The mean differences between the two samples of the prolactin hormone level were not significant, the value (t) of the two independent samples was 1.10 with a probability of 0.296 and the heart rate ,the differences were significant of the value (t) for the two independent samples and 5.41 for the probability of 0.001 as well as the stress time, the differences were significant for the value of (t) for the two independent samples and for the favor of female players, (T) 3.36 and the degree of probability 0.007.

The result of the study was the increase in the proportion of hormone prolactin with the beginning of the effort and continue with its continuity continue is affected by the proportion of hormone time stress and heart rate rise with rising of inner body temperature ,and its height is reflected in the body's adaptation so as not to adversely affect the player's body or practice.

Finally, the researcher recommended conducting similar studies for both genders and for different age and training groups.