The purpose of this study was to examine injuries attributed to muscle imbalance in sports with overhead move- ments. Available sources in the period between 2010 and 2020 that provide an overview of the occurrence of muscle imbalance and the risk of injuries in overhead sports were evaluated. A comprehensive search of relevant sources was conducted using Google Scholar, PubMed databases, and other databases, including Science Direct, Research Gate, Web of Science, and Psyc Info. Eleven articles met the criteria to be included in the systematic re- view. Muscle imbalance significantly impacted overhead athletes and was responsible for injuries of the shoulder, lower back, elbow, and wrist. Based on the findings of the review, further study on muscle imbalance should be carried out. More importantly, future research should investigate the muscle imbalance in the non-dominant side and identify relevant exercises that can reduce the imbalance and increase the stability and strength of the muscles on the non-dominant side. Researchers have identified muscle imbalance as a cause of the injuries, but detailed information on the prevalence of muscle imbalance and its impact on athletes remains lacking.

The purpose of this study was to describe the quality of the physical education teacher's nutritional status and its theoretical impact. The research data is qualitative in nature and is generated from filling out open questionnaires to informants. 124 informants voluntarily filled out the questionnaire and came from various regions in Indonesia, for this reason, informant data was protected. Data analysis was carried out in a qualitative descriptive manner by collecting data, reducing, presenting, verifying, and concluding. The results showed that 1 person was in the underweight category, 71 people were in the healthy weight (normal) category, 27 people were in the overweight category, and 25 people were in the obese category. The conclusions of this study indicate that only 59% of teachers have a healthy weight nutritional status and the rest are in an unhealthy (not ideal) position which will have an impact on their fitness and health levels, as well as showing the performance of personal and professional competencies that has not been maximized.