@ext_hypertrophy: The basics of waist measurements. If your waist measurement is fluctuating week to week due to bloating, poor digestion, menstrual cycle, lack of sleep or any other facts it's more beneficial for you to not use the belly button as a marker to measure your waist instead look slightly up to the smallest part of your waist below the rib cage and above the belly button, this site is less susceptible to fluctuations and will provide a more reliable measurement week to week. #progress #fitnessprogress #fitnessmotivation #gymmotivation #personalttaining