Introduction: For over 100 years, elastic band training has been used in fitness training, including mainly male physical strength training, female body sculpting training, and stimulation of stages in child development. Objective: Verify the impacts of elastic band training on lower limb strength in aerobic gymnastics athletes. Methods: The method of literary data, expert interview, and logical analysis were adopted. Mainly through the logical analysis method, 20 aerobics athletes in a rhythmic gymnastics club were selected as volunteers for the experiment. They were randomly divided into the experimental and control groups and then performed a jump test for 14 weeks, involving three steps. Results: It was found that before the experiment, the athletes in the experimental group performed slightly better in the three-step approach and level 1 straight step jump than the control group. Elastic band training significantly improved trunk strength and lower limb strength. Conclusions: Factors affecting the selection of lower body strength training content for aerobic gymnastics athletes are: physical factors, training cycle factors, multi-age factors, and coaches’ factors. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.

Introduction: Aerobics refers to exercise that integrates dance, gymnastics, and technical movements with a hectic pace and high demand for aerobic energy. The practice of this sport can improve cardiopulmonary function and prevent cardiovascular diseases, besides eliminating excess fat and improving body shape. Objective: Analyze the body changes caused by aerobic gymnastics in its practitioners. Methods: This article analyzes relevant scientific articles to raise a protocol of exercises performed by the experimental test method. The results of the relevant variables went through mathematical statistics, analysis, and confrontation of the research results. Results: The comparison of various indicators before and after the intervention showed that the normal range of body composition for women was 0.75 to 0.80; the test results showed that the waist-to-hip ratio of the volunteers decreased from 0.89 to 0.77. Conclusion: The aerobic gymnastics protocol performed positively impacted the body composition of its practitioners. In the psychological domain, it also contributed to a correct understanding of the body’s physical aesthetics, promoting the achievement of high-level human beauty in its practitioners. Level of evidence II; Therapeutic studies - investigation of treatment outcomes.