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Reliability and Validity of Near-Infrared Spectroscopy Mitochondrial Capacity Measurement in Skeletal Muscle

School of Kinesiology, Auburn University, 301 Wire Road, Auburn, AL 36849, USA
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J. Funct. Morphol. Kinesiol. 2018, 3(2), 19; https://doi.org/10.3390/jfmk3020019
Received: 30 January 2018 / Revised: 1 March 2018 / Accepted: 9 March 2018 / Published: 21 March 2018
Establish reliability of near-infrared spectroscopy (NIRS) mitochondrial capacity measurement and assess validity using heating and cooling interventions. We recruited 13 participants for four visits. Two visits consisted of a series of blood pressure occlusions proximal to the NIRS probe and electrical stimulation to the thigh, calf and forearm for reliability. Visits 3 and 4 required heating or cooling of the three muscles, using the protocol above. The between day reliability coefficient of variation (CV) in the forearm was 3% and time constant (TC) average was 41.9 ± 9.2 seconds (s). The within day CV in the forearm = 4.5%, the calf = 5.5% and the thigh = 4.6% (n = 13). Within day reliability for the cold condition in the forearm = 5.9%, calf = 4.3% and thigh = 4.4% and within day for the hot condition in the forearm = 6.4%, calf = 5.3% and thigh = 4.6%. The cold condition increased TC in the forearm, but decreased TC with heat (p < 0.05). The thigh decreased mitochondrial capacity with heat (p < 0.05), but cold was no different from control. These results suggest NIRS mitochondrial capacity has good within and between day reliability and temperature changes the mitochondrial capacity time constant. View Full-Text
Keywords: near-infrared spectroscopy (NIRS); muscle metabolism; mitochondria near-infrared spectroscopy (NIRS); muscle metabolism; mitochondria
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MDPI and ACS Style

La Mantia, A.M.; Neidert, L.E.; Kluess, H.A. Reliability and Validity of Near-Infrared Spectroscopy Mitochondrial Capacity Measurement in Skeletal Muscle. J. Funct. Morphol. Kinesiol. 2018, 3, 19. https://doi.org/10.3390/jfmk3020019

AMA Style

La Mantia AM, Neidert LE, Kluess HA. Reliability and Validity of Near-Infrared Spectroscopy Mitochondrial Capacity Measurement in Skeletal Muscle. Journal of Functional Morphology and Kinesiology. 2018; 3(2):19. https://doi.org/10.3390/jfmk3020019

Chicago/Turabian Style

La Mantia, Anna M.; Neidert, Leslie E.; Kluess, Heidi A. 2018. "Reliability and Validity of Near-Infrared Spectroscopy Mitochondrial Capacity Measurement in Skeletal Muscle" J. Funct. Morphol. Kinesiol. 3, no. 2: 19. https://doi.org/10.3390/jfmk3020019

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