Table 3. Mean ± SD score and intensity of Menstrual Distress and Short Form McGill Pain Questionnaire scores before and after the HIIT spinning exercise intervention. Distress component Control (1) Dysmen (2) DysmenHIIT (3) Rank mean Rank mean Rank mean Items Pre Post Pre Post Pre Post Cramp 1.4 ± 0.5 2,3 1.3 ± 0.5 2 3.1 ± 0.5 1 2.9 ± 0.6 1,3 2.7 ± 0.6 1 1.9 ± 0.8 2,* Fatigue 1.7 ± 0.5 2,3 1.6 ± 0.6 2.5 ± 0.5 1 2.1 ± 0.5 * 2.5 ± 0.5 1 1.8 ± 0.7 * Backache 1.4 ± 0.5 2,3 1.5 ± 0.6 2 2.4 ± 0.9 1 2.3 ± 0.6 1 2.8 ± 0.7 1 1.9 ± 0.8 * Swelling (chest/abdomen) 1.5 ± 0.5 2,3 1.5 ± 0.5 2 2.3 ± 0.8 1 2.5 ± 0.8 1 2.2 ± 0.6 1 1.7 ± 0.7 * Painful or tender breast 1.5 ± 0.5 2,3 1.3 ± 0.5 2 2.5 ± 0.5 1 2.2 ± 0.5 1 2.3 ± 0.5 1 1.8 ± 0.7 General ache and pains 1.3 ± 0.5 2,3 1.3 ± 0.5 2 2.3 ± 0.6 1 2.1 ± 0.6 1 2.3 ± 0.6 1 1.6 ± 0.6 * Dizziness 1.2 ± 0.4 1.2 ± 0.4 1.7 ± 0.7 1.6 ± 0.6 1.6 ± 0.9 1.3 ± 0.6 Cold sweat 1.0 ± 0.0 2,3 1.0 ± 0.0 2 1.8 ± 0.8 1 1.5 ± 0.6 1 1.7 ± 0.6 1 1.1 ± 0.4 * Headache 1.4 ± 0.8 1.3 ± 0.6 2 1.9 ± 1.0 2.0 ± 1.0 1 1.4 ± 0.5 1.5 ± 0.6 Nausea/vomiting 1.1 ± 0.4 1.0 ± 0 1.5 ± 0.9 1.5 ± 0.9 1.3 ± 0.6 1.2 ± 0.4 Hot flashes 1.0 ± 00 1.0 ± 0 2 1.3 ± 0.6 1.4 ± 0.5 1 1.1 ± 0.4 1.3 ± 0.5 Muscle stiffness 1.1 ± 0.5 1.1 ± 0.3 1.3 ± 0.6 1.6 ± 0.5 1.3 ± 0.6 1.1 ± 0.3 * Swelling legs 1.4 ± 0.6 1.3 ± 0.5 1.4 ± 0.5 1.6 ± 0.5 1.5 ± 0.6 1.5 ± 0.8 Heart pounding 1.1 ± 0.3 1.1 ± 0.3 1.3 ± 0.6 1.3 ± 0.5 1.4 ± 0.6 1.1 ± 0.4 Skin blemish or disorder* 1.7 ± 0.7 1.8 ± 0.6 2.1 ± 0.6 1.6 ± 0.6 * 2.4 ± 1.1 1.8 ± 0.6 * Numbness 1.0 ± 0 1.0 ± 0 2 1.4 ± 0.8 1.5 ± 0.6 1,3 1.3 ± 0.6 1.1 ± 0.3 2 Total scores 20.8 ± 3.1 2,3 20.3 ± 3.3 2 31.0 ± 5.9 1 29.4 ± 3.6 1,3 29.9 ± 4.5 1 23.7 ± 3.7 2,* Short-Form McGill Pain Questionnaire (total score) 17.6 ± 2.5 2,3 17.3 ± 1.9 2,3 31.2 ± 11.0 1 31.1 ± 8.3 1,3 30.1 ± 6.3 1 21.9 ± 4.5 1,2,* Visual Analog Scale of Pain 1.4 ± 0.7 2,3 1.4 ± 0.7 2,3 7.2 ± 0.8 1 7.4 ± 0.9 1,3 7.1 ± 1.3 1 4.2 ± 1.8 1,2,* Control and Dysmenorrhea groups were defined according to the definitions of inclusion criteria from the VAS scores and the Short Form McGill Pain Questionnaire in the current study. Superscripts numbers (1, 2, and 3) indicate significant differences (P < 0.05) between the groups in pre- or post-testing and ‘*’ indicates significant differences between pre- and post-testing.