Changes in Skeletal Muscle in Response to Simulated Altitude

The purpose of this study is to learn how muscles change when people breathe air with less oxygen, like being high up in the mountains. We will use a safe ultrasound tool, called shear wave elastography, to take pictures of the muscles and see how they react. This information can help scientists understand how the body responds to high altitudes and may help athletes and travelers stay healthy in these conditions.