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Sex Differences in Test-Retest Reliability of Near-Infrared Spectroscopy During Postocclusive Reactive Hyperemia of the Vastus Lateralis.
Shoemaker, Marni E; Smith, Cory M; Gillen, Zachary M; Cramer, Joel T.
Afiliação
  • Shoemaker ME; College of Education and Human Sciences, South Dakota State University, Brookings, South Dakota.
  • Smith CM; Robbins College of Health and Human Sciences, Baylor University, Waco, Texas.
  • Gillen ZM; Department of Kinesiology, Mississippi State University, Mississippi State, Mississippi.
  • Cramer JT; College of Health Professions and Sciences, University of Central Florida, Orlando, Florida.
J Strength Cond Res ; 38(2): e40-e48, 2024 Feb 01.
Article em En | MEDLINE | ID: mdl-37815266
ABSTRACT: Shoemaker, ME, Smith, CM, Gillen, ZM, and Cramer, JT. Sex differences in test-retest reliability of near-infrared spectroscopy during postocclusive reactive hyperemia of the vastus lateralis. J Strength Cond Res 38(2): e40-e48, 2024-The purpose of this study was to determine test-retest reliability for vascular reactivity measures and ranges for normalization of near-infrared spectroscopy (NIRS) variables from the vastus lateralis using postocclusive reactive hyperemia (PORH) procedure in male subjects, female subjects, and combined. Concentrations of oxygenated hemoglobin (Hb) + myoglobin (Mb) (O 2 Hb) and deoxygenated Hb + Mb (HHb) to derive total Hb + Mb (THb), difference in Hb + Mb signal (Hbdiff), and muscle tissue oxygen saturation (StO 2 ) from the vastus lateralis were measured during the PORH in 12 male subjects (age: 23.17 ± 1.77 years; stature: 180.88 ± 4.59 cm; and mass: 81.47 ± 9.68 kg) and 10 female subjects (age: 23.80 ± 2.07 years; stature: 165.95 ± 4.92 cm; and mass: 70.93 ± 10.55 kg) on 2 separate days. Adipose tissue thickness at the NIRS site was measured with ultrasonography. There were no significant differences between the mean values from visit 1 to visit 2 ( p > 0.076-0.985). In the composite sample, intraclass correlation coefficient (ICC) and coefficient of variation (CV) ranged from 0.35 to 0.91 and 4.74 to 39.18%, respectively. In male subjects, ICC and CV values ranged from 0.57 to 0.89 and 2.44 to 28.55%, respectively. In female subjects, ICC and CV values ranged from -0.05 to 0.75 and 7.83 to 61.19%, respectively. Although NIRS variables were overall reliable during PORH, when separated by sex, reliability in male subjects generally increased, whereas female subjects were not reliable, suggesting adipose tissue thickness may be a contributing factor. Understanding sex differences in reliability is important when using this technique for normalization or examining vascular reactivity during athletic performance. With greater utilization of NIRS monitoring in athletes to examine training adaptations, it is important for practitioners to understand the capabilities and potential limitations of the tool.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Músculo Quadríceps / Hiperemia Limite: Adult / Female / Humans / Male Idioma: En Revista: J Strength Cond Res Assunto da revista: FISIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Músculo Quadríceps / Hiperemia Limite: Adult / Female / Humans / Male Idioma: En Revista: J Strength Cond Res Assunto da revista: FISIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de publicação: Estados Unidos