Each female sets her experience of 47 manifestations on a 6 point scale separately for the premenstrual, menstrual and intermenstrual phases of her latest and worst menstrual cycle. Daily Symptoms Report will be filled at the start and at end of the study (before and after performing swimming exercise) Females in group I will be instructed to engage into 12 classes of 60-minute Zumba® fitness over an 8-week period Each class was one hour in length and a recovery period of at least 48 hours will be taken between classes. The Zumba® fitness scheduling of sessions will be self-selected by the participants. The Zumba sessions will be conducted at a ﬁtness center (SAMIA ALLOUBA gym and fitness center) and will consist of continuous dance movements to Latin music with varying intensity level throughout the sessions. Each session will be initiated with low-intensity movements for the ﬁrst 5 min, followed by an increasing intensity throughout the workout. At the end of the training session, the intensity will be gradually reduced. The Zumba sessions will be supervised by three certiﬁed Zumba instructors, each responsible for regular sessions per week.
Each female sets her experience of 47 manifestations on a 6 point scale separately for the premenstrual, menstrual and intermenstrual phases of her latest and worst menstrual cycle. Daily Symptoms Report will be filled at the start and at end of the study (before and after performing swimming exercise) Females in group I will be instructed to engage into 12 classes of 60-minute Zumba® fitness over an 8-week period.