Dancers are well known for their "dance bags", here is one of the many important things you should have in that bag.
Fluid
Exercise increases heat production by muscles. Cooling the body depends on evaporation of sweat from the skin. Sweat losses during a hard class or long rehearsal can be substantial-up to 2 liters/hour. Fluid loss results in dehydration that can impair performance and mental functioning, such as the ability to quickly pick up complicated choreographic combinations and execute them effectively.
A cup (8 ounces or 250 ml) of fluid every 15 minutes is recommended. Whenever there is a break in class or rehearsal, the dancer should have ready access to fluid, and they should be encouraged to drink because the thirst mechanism does not keep up with the body's need for fluid. A water bottle or sport drink should be part of a dancer's "gear," and, if possible, the dancer should be able to bring the bottle into the studio for frequent drinks. Following class and rehearsal, dancers should continue to increase fluid consumption for the next few hours. Avoid carbonated drinks and large quantities of fruit juice.
A simple way to monitor hydration is to check urine color: clear to light yellow is hydrated; yellow to dark yellow means dehydrated. One caveat, vitamin B supplements will result in yellow urine and make this dehydration "test" inaccurate.
All dancers need to ingest sufficient energy to meet the rigors of hard training. Consuming the right amounts and types of food and fluid will provide the body with "high performance fuel” necessary to achieve optimal training benefits and peak performance.
Written by Priscilla Clarkson, PhD, under the auspices of the Education Committee of IADMS.
International Association for Dance Medicine and Science