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IMPORTANT WEATHER INFORMATION: WBGT INDEX
The Tulsa Federal Credit Union Tulsa Run has adopted the WBGT (wet-bulb globe temperature) index as its standard. High heat and humidity, as measured in accordance with the American College of Sports Medicine recommendations for participation in endurance events could result in cancellation of the event.
WBGT is considered ‘the most practical heat stress index characterizing the effect of a heat stress environment on the individual.’ WBGT was developed because the dry-bulb temperature alone does not provide a realistic guide to the effects of heat, as it does not take humidity and heat radiation into consideration.
If the WBGT level changes, water station captains will be waving the corresponding flags at the five water stations along the race course. The flag color will indicate the safety conditions based on the WBGT readings.
Along the 15K course, there will be five water stations and various medical teams throughout the route. Each water station will have a flag/poster of a color corresponding to the heat stress at that time.
Extreme conditions that are high risk already place a burden on community healthcare systems, including emergency medical transportation, as well as hospital emergency room capacity. This burden encroaches on overall community safety and will be recognized as unnecessary and ill-advised scenario of which the Tulsa Run officials will not knowingly place the community in any such position.
The Tulsa Run asserts that each participant assumes responsibility when entering an event with the potential risks that a 15k run presents. All runners should be discerning of their own fitness level in their decision to enter the run and associated events. Furthermore, it strongly advises all participants to cooperate with directives given Tulsa Run officials and to assist in ensuring the safety of their fellow participants, particularly when conditions are less than ideal.
As the WBGT rises, so does sweating and fluid losses. With fluid losses comes the risk of various heat injuries; heat cramps, heat exhaustion and heat stroke. It is strongly recommended that all runners slow their pace and reduce their risk to heat stress when conditions warrant. Hydration and misting stations to cool does not prevent heat stress if your pace is not adjusted. With rising WBGT, runners should increase their planned intake of fluids. While runners should increase their fluid intake as the WBGT rises, be careful to avoid excessive water intake and the possibility of over hydration, or hyponatremia, which is the dilution of electrolytes in the blood stream to a dangerous level. Adding salt to your hydration plan will help prevent this.
The Tulsa Run offers five hydration/water stops on the 15k course. There are more than adequate amounts to ensure hydration under favorable conditions. If those conditions worsen, additional amounts will be pre-staged and deployed, but it should be reasonable to assume that supplies may not be limitless due to logistical constraints entailed in such a distribution effort.
The Tulsa Federal Credit Union Tulsa Run is committed to the safety of all of our participants, our volunteers and the community at large.