A support program including pilates exercises and sending text messages will be applied to the students in the intervention group for 8 weeks. Online pilates exercises will be done 2 days a week and individual short messages will be sent to their smartphones via the Whatsapp application 3 days a week. Participants will be provided with Pre Pilates exercises, Pilates Mat Program: Beginner Level, Pilates Mat Program: Intermediate Level, Pilates Mat Program: Advanced level exercises. The exercises will be done online in the presence of a research physiotherapist with The Australian Physiotherapy & Pilates InstituteMatwork Level 1 (APPI) certificate.

No intervention will be made in the control group.

Female students in the intervention group will be given online pilates exercises 2 days a week for 8 weeks. Pre Pilates exercises, Pilates Mat Program: Beginner Level, Pilates Mat Program: Intermediate Level, Pilates Mat Program: Advanced level exercises will be provided. The exercises will be performed in the company of a research physiotherapist who has The Australian Physiotherapy & Pilates InstituteMatwork Level 1 (APPI) certificate. 3 days a week, individual short messages will be sent to the smartphones of female students via the Whatsapp application. General information about PMS will be sent in the first week, and motivational messages about lifestyle will be sent in the following weeks. Short message contents will be prepared by researchers in line with the literature and expert opinion will be taken. When the support program ends, PMSS will be applied to female students in the intervention group.

The premenstrual syndrome scale (PMSS) aims to measure the severity of symptoms. The scale consists of 44 items in 5-point Likert type. The Cronbach's alpha value of the scale was determined as 0.75. As stated in the PMSS directive, while filling out the scale, the participants should mark according to the symptoms they felt one week before the period. In scoring the scale, the "Never" option is 1 point, the "Very little" option is 2 points, the "Sometimes" option is 3 points, the "Frequently" option is 4 points, and the "Constantly" option is evaluated. as 5 points. While evaluating the PMSS results, the presence of PMS is evaluated according to the condition of passing 50% of the highest score that can be obtained from the total and subscale scores. The highest possible score for the total score is 220, 50% of which is 110. A score above 110 points on the scale indicates the presence of PMS.

The premenstrual syndrome scale (PMSS) aims to measure the severity of symptoms. The scale consists of 44 items in 5-point Likert type. The Cronbach's alpha value of the scale was determined as 0.75. As stated in the PMSS directive, while filling out the scale, the participants should mark according to the symptoms they felt one week before the period. In scoring the scale, the "Never" option is 1 point, the "Very little" option is 2 points, the "Sometimes" option is 3 points, the "Frequently" option is 4 points, and the "Constantly" option is evaluated. as 5 points. While evaluating the PMSS results, the presence of PMS is evaluated according to the condition of passing 50% of the highest score that can be obtained from the total and subscale scores. The highest possible score for the total score is 220, 50% of which is 110. A score above 110 points on the scale indicates the presence of PMS.