The Richardson laboratory has a longstanding interest in oxygen transport from air to tissue, with a current research interest revolving around the link between vascular and skeletal muscle function. One of the many potential candidates is the role of oxidative stress in the regulation/dysregulation of skeletal muscle metabolism and vascular control. Professor Richardson also directs the Utah Vascular Research Laboratory which provides state-of-the-art methods for assessing muscle and vascular function in humans (e.g. measurement of vessel diameter and blood flow by high-resolution ultrasound Doppler; magnetic resonance techniques to measure skeletal muscle perfusion, metabolism, and oxygenation in real-time; catheter studies allowing for the delivery of compounds to limbs; electromyographic activity of exercising skeletal muscle, etc.).