Which of the following is NOT a recommended SCT prevention measure?

• A. Exclude from performance tests
• B. Emphasize hydration
• C. Have supO2 available at elevation
• D. Increase volume without rest

Answer: (D)

Sickling risk in athletes is driven by dehydration, acidosis, and hypoxia. The prevention approach focuses on keeping athletes well-hydrated, acclimatized to heat or altitude, and prepared to maintain adequate oxygen delivery if needed. Providing supplemental oxygen at elevation helps counteract hypoxemia that can promote sickling, and limiting exposure during high-stress testing or exertion for known SCT athletes can be a cautious precaution to reduce risk. Increasing training volume without rest directly opposes these goals: it raises body temperature, dehydration, and metabolic stress, all of which heighten the likelihood of red blood cell sickling. So the option that is not a recommended SCT prevention measure is increasing volume without rest.