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Supramaximal Intensity Hypoxic Exercise and Vascular Function Assessment in Mice
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[Sildenafil and exercise performance at altitude]
1Instituto de Medicina del Deporte y Rehabilitación de Futbolistas Argentinos Agremiados (IMDYR), Centro Cardiológico Salud, Buenos Aires, Argentina.
Medicina
|September 5, 2015
Summary
Altitude exposure reduces exercise capacity due to lower oxygen. Sildenafil may enhance athletic performance at altitude, but individual responses and side effects vary significantly.
Area of Science:
- Exercise Physiology
- Altitude Medicine
- Pharmacology
Context:
- Decreased barometric and partial oxygen pressure at altitude causes hypobaric hypoxia.
- Hypoxia impairs exercise performance and athletic qualities.
- Altitude-related diseases are linked to hypobaric hypoxia.
Purpose:
- To examine the effects of altitude on exercise capacity.
- To review studies on sildenafil's efficacy in improving athletic performance at altitude.
- To discuss potential side effects and implications of sildenafil use in athletes.
Summary:
- Altitude exposure leads to reduced exercise capacity, potentially due to increased pulmonary vascular resistance and altered nitric oxide diffusion.
- Sildenafil, used for pulmonary hypertension, has been investigated for improving athletic performance under hypoxic conditions.
- Studies show varied results regarding performance enhancement, with significant individual variability in response and potential adverse effects.
Impact:
- Sildenafil's use for altitude performance enhancement is not its primary indication and requires careful consideration of individual athlete responses.
- Physicians must be aware of potential sildenafil side effects that could negatively impact athlete health and performance.
- Further research is needed to clarify optimal use, efficacy, and safety profiles for athletes competing at altitude.
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