المجلة الدولية للعلوم والتكنولوجيا

📚 المجلة

المجلة الدولية للعلوم والتكنولوجيا

مجلة علمية محكمة تنشر البحوث والمقالات العلمية في مختلف فروع المعرفة، المجلة مصنفة ضمن (ISI، وجوجل سكولار، ومكتبة الكونجرس بالولايات…


📖 الإصدار

الإصدار السابع 4 مايو 2026

The effect of increased contraction and relaxation (muscle stress) during skeletal muscle exercise on physiological parameters and it is impact on muscle tissue.

Ahmed Jabbar Obaid

Abstract

In this study, 90 men aged 20 to 40 were sampled and classified into three groups: the first group exercised for approximately two hours daily and injected testosterone and growth hormone; the second group exercised for approximately one hour daily and did not inject testosterone or growth hormone; and the third group neither exercised nor injected the hormones. The results of the calcium test were similar in the three categories. As for creatinine, which is a waste product excreted by the kidneys and results from the breakdown of creatine in skeletal muscles, there was a slight difference between the three categories. Also, when creatinine rises in athletes, it is not considered dangerous because it results from increased breakdown of creatine in the muscles due to increased muscle contraction and relaxation. As for body mass, the difference was clear, as it increased in athletes. One of the observed symptoms is that individuals who, in addition to intramuscular injections, also received local injections to increase muscle size and shape, suffer from hardening and fibrosis of that part of the muscle. Furthermore, this fibrosis increases in temperature and may potentially develop into serious complications. Therefore, we may see more noticeable differences if the volumes of injected hormones are increased. This is in addition to changes in voice tone and appearance due to a deficiency in memory and growth vitamins. From this, we conclude that hormone injections should be administered medically and under medical supervision, according to the athlete’s needs. However, they should not be injected into anyone whose hormone levels are normal and whose muscle mass is appropriate for their size, in order to avoid complications and to obtain the health benefits from the exercise they practice.

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