Strength and Aerobic Training Against Hot Flushes in Postmenopausal Women

Inclusion Criteria: * Postmenopausal women (one of: ≥ 12 months since last menstruation; amenorrhea due to intrauterine device or hysterectomy and Follicle Stimulating Hormone (FSH) \>30 mIU/ml; bilateral oophorectomy; induced menopause due to chemotherapy or radiation and ≥2 years amenorrhea); * ≥ 28 moderate to severe hot flushes per week during a 2-week screening period, registered through a daily VMS diary; * Age ≥45 years; * Physical ability to participate in strength training or high intensity aerobic exercise for 60 minutes, 3 times/week during 15 weeks; * Understand Swedish orally and in writing Exclusion Criteria: * Regular physical activity \>30 minutes per week of vigorous intensity or ≥150 minutes of moderate intensity or combined activities representing maximum 150 minutes of moderate intensity; * Use of systemic menopausal hormone therapy the last 2 months; * Use of natural preparations such as herbal preparations for VMS, or other medications for VMS the last 2 months; * Capillary hemoglobin \<110 g/l; * Blood pressure \>160 mmHg systolic or \>100 mmHg diastolic; * Unstable medical condition with a potential to affect VMS (like unregulated thyroid disease); * Medical condition that by a physician is judged not appropriate (because of potential to affect VMS or risk of injury with vigorous exercise)