Comparing Thyroid Hormones and Cortisol Responses to Aerobic and Anaerobic Exercise in Sedentary Women

What This Trial Is About

Researchers are evaluating the immediate hormonal responses of thyroid hormones and cortisol to two types of exerciseone aerobic and one anaerobicin sedentary women aged 18 to 25 years. The study involves 30 healthy sedentary female participants to understand how these exercises affect hormone levels differently. This research focuses on basic science to compare the bodys endocrine reaction to aerobic and anaerobic activities. Participants will complete two separate exercise sessions a progressive 20-meter shuttle run as the aerobic test and a 30-second Wingate test on a cycle ergometer as the anaerobic test. Blood samples will be taken immediately before and after each exercise to measure changes in serum thyroid-stimulating hormone TSH, triiodothyronine T3, thyroxine T4, and cortisol using laboratory chemiluminescence methods. Each participant serves as her own control by undergoing both exercise protocols. During the study, participants will be medically screened and provide written consent before testing. Qualified healthcare professionals will collect blood samples from a vein on four occasionsbefore and after each exercise session. The study will take place in specialized sports and public health laboratories, where hormone levels will be analyzed and compared to assess how aerobic versus anaerobic exercise influences endocrine responses. Participants will be closely supervised during all procedures.

Acute Endocrine Responses to Aerobic and Anaerobic Exercise in Sedentary Women: A Comparative Analysis of Thyroid Hormones and Cortisol