Advisor Information
Dustin Slivka
Location
Dr. C.C. and Mabel L. Criss Library
Presentation Type
Poster
Start Date
2-3-2018 10:45 AM
End Date
2-3-2018 12:00 PM
Abstract
ABSTRACT
BACKGROUND: During exercise, the demand for oxygen in the skeletal muscle and brain tissue is increased causing a deficit known as deoxygenation. Deoxygenated tissues cause the body to make adaptations in energy production due to oxygen’s role in mitochondrial energy production during oxidative metabolism. Previously, we have demonstrated alterations in markers of mitochondrial development when the stimulus of temperature exposure has been combined with exercise. However, the effects of environmental temperature exposure on tissue deoxygenation of the skeletal muscle and brain remains unclear. PURPOSE: The proposed study will examine the effects of cold temperatures on skeletal muscle and brain tissue oxygenation using near infrared spectroscopy (NIRS). NIRS measures muscle and brain tissue oxygenation by calculating the change of the scattering and absorption properties of a continuous infrared light wave. METHODS: Twelve recreationally trained males will perform two exercise trials cycling on a Velotron cycle ergometer (RacerMate Inc., Seattle Washington). Cycling intensity will be set at 60% of the peak power associated with VO2max for 1 hour in an environmental chamber (Darwin Chambers Company, St. Louis). Temperatures will be chosen in a randomized counterbalanced order and set at either -6 °C or 20 °C. Oxymon NIRS probes (Artinis, Netherlands) will be secured above the vastus lateralis muscle of the thigh and the frontal lobe on the right side of the forehead. IMPLICATIONS: The proposed research seeks to examine the role of temperature during exercise in skeletal muscle and brain tissue oxygenation.
Differences in Skeletal Muscle and Brain Tissue Oxygenation during Exercise in the Cold
Dr. C.C. and Mabel L. Criss Library
ABSTRACT
BACKGROUND: During exercise, the demand for oxygen in the skeletal muscle and brain tissue is increased causing a deficit known as deoxygenation. Deoxygenated tissues cause the body to make adaptations in energy production due to oxygen’s role in mitochondrial energy production during oxidative metabolism. Previously, we have demonstrated alterations in markers of mitochondrial development when the stimulus of temperature exposure has been combined with exercise. However, the effects of environmental temperature exposure on tissue deoxygenation of the skeletal muscle and brain remains unclear. PURPOSE: The proposed study will examine the effects of cold temperatures on skeletal muscle and brain tissue oxygenation using near infrared spectroscopy (NIRS). NIRS measures muscle and brain tissue oxygenation by calculating the change of the scattering and absorption properties of a continuous infrared light wave. METHODS: Twelve recreationally trained males will perform two exercise trials cycling on a Velotron cycle ergometer (RacerMate Inc., Seattle Washington). Cycling intensity will be set at 60% of the peak power associated with VO2max for 1 hour in an environmental chamber (Darwin Chambers Company, St. Louis). Temperatures will be chosen in a randomized counterbalanced order and set at either -6 °C or 20 °C. Oxymon NIRS probes (Artinis, Netherlands) will be secured above the vastus lateralis muscle of the thigh and the frontal lobe on the right side of the forehead. IMPLICATIONS: The proposed research seeks to examine the role of temperature during exercise in skeletal muscle and brain tissue oxygenation.