Carbon dioxide. Carbon dioxide (chemical formula CO2) is a colorless gas with a density about 60% higher than that of air (1.225 g/L) that is odorless at normally encountered concentrations. Carbon dioxide consists of a carbon atom covalently double bonded to two oxygen atoms.
You should only do ballet in pregnancy if you are used to it. Ballet stretches can place a lot of pressure on your joints, especially your pelvic joints, and standing on one leg can cause pain in your pelvis.
Dear Fitness Expert, I am about 4 weeks pregnant and am a Polynesian dancer. I have danced for about 3 years now and we practice or perform at least 1 week, but for the past 2 weeks we have been practicing every day for an upcoming event. My group does a lot of Tahitian dancing, which involves a lot of fast hip motion.