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1. After puberty, the body weight of female students increased significantly more subcutaneous fat, the body appears to fullness, thickness of thin cortical bone and muscle, water and relatively high fat content, less sugar, the muscles that maid students power than men, weak, fatigue.
2. Smaller the heart, myocardial contractility is weak, regulation of cardiac excitability of the nerve center of higher heart rate faster than the male students, mainly by speeding up the heart rate during exercise to increase heart minute volume,[link widoczny dla zalogowanych], cardiac reserve force than men. Therefore,[link widoczny dla zalogowanych], female students interested in sports than male students.

(a) multi-menstrual period of female students in the physical health education , in particular, sports and health education. So that they understand menstruation is a normal physiological phenomenon. In the menstrual period, the body is generally not obvious anomaly, so students with normal menstruation during menstruation participate in appropriate sports activities, not only will not affect the physical health, but also help the body's development. And a variety of sports activities also can adjust the process of excitation and inhibition in the cerebral cortex, reduce body discomfort. Gradually eliminate their psychological concerns.
Middle school girls during menstruation in sports psychology of fear

girl students regularly participate in physical exercise, not only can promote the body's growth and development, promote health, improve physical function of the organ system level, so that it can be better suited to learning tasks. Ministries but also the muscles of the body are coordinated development of uniform. However, due to enter puberty, the endocrine and reproductive system and the rapid development, so that they dramatically change all aspects of the body, male and female students in morphology, physiological and psychological characteristics of a larger aspects of the gender differences. Especially in the physical ability that there are great differences.
(c) general during menstruation, female students of physical responsiveness, adaptability, muscle strength, neural regulation of the accuracy and flexibility may be reduced. Therefore, it reasonable arrangements for physical education teachers need to female students menstrual period, physical activity and exercise time, do not arrange for them to participate in the competition, because more competition intensity, mental too tight, physical and nervous systems do not adapt easily lead to ovarian dysfunction cause excessive menstrual flow or menstrual disorders, to avoid increasing their psychological fear.
menstrual period to change the fear of women students in sports psychology, which requires:

1. Menarche female students generally about 12-15 years old. Age at menarche generally influenced by genetic, nutritional, health and social environment factors. If this period of their parents and teachers can not give proper guidance, if ignored, may often lead to their adverse psychological reactions.
2. The average menstrual period is generally 28 days, female students are not stable endocrine function, menstrual period began to become irregular, about 1-2 years, 28-30 days after the move closer to passing time. Period under normal circumstances is about 2-7 days, most 3-5 days. Middle school girls after puberty, due to the characteristics of their physical development, itself does not like sports, especially vigorous exercise. Plus they have little knowledge about the physiology, parents and teachers can not correct guidance, they tend to make the appropriate period of menstrual fear of physical exercise psychology, not even afraid to participate in sports, fears of adverse consequences. And because some female student body during menstruation will be some normal physiological responses, such as the abdomen and breast swelling may have a sense of backache and other phenomena, few people have headaches, insomnia, fatigue, sleepiness, mood swings, tired of noise, irritability, and constipation or diarrhea, which is exacerbated by their fear of menstrual period in sports psychology.

female high school students in the menstrual period in sports psychology of fear

3. Small volume of the thorax and lungs, pulmonary ventilation, vital capacity less than men, cardiovascular system function less than male students, female students so quiet and maximum oxygen uptake during physical load is less than male students, which limits the female students oxygen capacity in the movement.
(b) female students usually strengthen the will of the quality of physical exercise and training, so that they love sports, have a strong, courageous will, so as to reduce their fear, or a conscious to restrain such a fear.

female students during this period except the heart, respiratory, bone and muscle development and function areas such as the difference between boys more and more significant, it also appeared in the menstrual cycle changes. Menstruation is a normal physiological phenomenon. In the menstrual period, menstrual normal girls should participate in appropriate physical activities, such as badminton and table tennis. Through these activities, not only can improve pelvic blood circulation, relieve pelvic congestion phenomenon, and abdominal and pelvic floor contraction and relaxation activities, played for gentle uterine massage, but also help the discharge of blood. However, because the majority of female high school students out of a shyness, too little knowledge about the physiology, plus a number of menstrual period physiological reactions, thus allowing them to sports in the menstrual period to produce a psychological fear, not proper physical exercise. Female students fear for this generation and their physical development and characteristics of menstrual period is closely related.
(e) the establishment of menstruation card system,[link widoczny dla zalogowanych], in time periods of female students understand the situation in order to arrange time for exercise and sports. More attention to them, encourage them to participate in appropriate physical exercise to eliminate their fear. For students with menstrual disorders, menstrual period may be suspended from sports activities, and regular medical supervision. Physical education students, male and female students should arrange for placement teaching.

(d) appropriate arrangements during menstruation swimming,[link widoczny dla zalogowanych], cross-jump, prance and other strenuous exercise, to avoid the cold stimulation, especially the lower abdomen is not cold, avoid being too large uterus due to vibration caused by excessive menstrual flow or abdominal pain and other adverse reactions.
Second, the characteristics of the menstrual period

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