The Relationship between Nutritional Adequacy and Physical Activity with the Menstrual Cycle in Adolescents

Menstrual cycle disorders are still common in adolescent girls and can be influenced by various factors, including nutritional adequacy and physical activity. During adolescence, an imbalanced nutritional intake and inadequate physical activity can disrupt reproductive hormone regulation, potentially leading to menstrual irregularities. This study aims to determine the relationship between nutritional adequacy and physical activity and menstrual cycle disorders in adolescent girls. This study used a cross-sectional design involving 78 female adolescents aged 15–19 at SMKN 52 Jakarta, selected using a simple random sampling technique. Nutritional adequacy was assessed through a 24-hour food recall and classified based on the percentage of the Recommended Intake (RDA). Physical activity was assessed using the Physical Activity Questionnaire for Adolescents (PAQ-A). Menstrual cycle disorders were determined based on the average length of menstrual cycles over the past three months. Data analysis was performed using the chi-square test with a p-value