title: Reliability of near-infrared spectroscopy for determining muscle oxygen saturation during exercise.
abstract: Near-infrared spectroscopy is currently used to assess changes in the oxygen saturation of the muscle during exercise. The primary purpose of this study was to assess the reliability of near-infrared spectroscopy in determining muscle oxygen saturation (StO2) in the vastus lateralis during cycling and the gastrocnemius during running for exercise intensities at lactate threshold and maximal effort. Test-retest reliability was determined from an intraclass correlation coefficient obtained from a one-way analysis of variance. Reliability of muscle StO2 for the gastrocnemius at lactate threshold was R = .87, and R = .88 at maximal effort. Reliability of muscle StO2 for the vastus lateralis at lactate threshold was R = .94 and R = .99 at maximal effort.
authors.affiliation: Department of Nutrition, Food and Exercise Science, Florida State University, Tallahassee 32306-1493, USA. kga9542@garnet.acns.fsu.edu
authors.forename: Krista G
authors.initials: KG
authors.lastname: Austin
authors.forename: Karen A
authors.initials: KA
authors.lastname: Daigle
authors.forename: Patricia
authors.initials: P
authors.lastname: Patterson
authors.forename: Jason
authors.initials: J
authors.lastname: Cowman
authors.forename: Sara
authors.initials: S
authors.lastname: Chelland
authors.forename: Emily M
authors.initials: EM
authors.lastname: Haymes
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001642:Bicycling / Q000502:physiology; D015444:Exercise / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D018482:Muscle, Skeletal / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010101:Oxygen Consumption / Q000502:physiology; D010807:Physical Endurance / Q000502:physiology; D015203:Reproducibility of Results; D012420:Running / Q000502:physiology; D019265:Spectroscopy, Near-Infrared / Q000379:methods*
chemical_list: D019344:Lactic Acid; D010100:Oxygen