title: Evaluation of a textile-based near infrared spectroscopy system in calf muscle oxygenation measurements.
abstract: We recently introduced a novel textile-based NIRS sensor (TexNIRS). Here, we evaluate TexNIRS in ten subjects (16 legs, age 28.5 ± 2.32 years, adipose tissue thickness (ATT) 4.17 ± 1.71 mm). Three venous occlusions at 50 mmHg were performed on their calf muscle. After 3 min of occlusion, oxy/deoxy hemoglobin concentration ([O₂Hb], [HHb]) changes were 3.71 ± 1.89/1.79 ± 1.08 μM; venous oxygen saturation (SvO₂) was 75 ± 9.7 %, oxygen consumption (VO₂) was 0.02 ± 0.01 mL/100 g/min, hemoglobin flow (HF) was 0.93 ± 0.48 μmol/100 mL/min, and blood flow (BF) was 2.01 ± 1.04 mL/100 mL/min. Our results are in good agreement with the literature, but the TexNIRS enables a much higher level of comfort.
authors.affiliation: Biomedical Optics Research Laboratory, Division of Neonatology, University Hospital of Zürich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland. nassim.nasseri@usz.ch.|Institute for Biomedical Engineering, Swiss Federal Institute of Technology, Wolfgang-Pauli-Str. 27, 8093, Zurich, Switzerland. nassim.nasseri@usz.ch.
authors.forename: Nassim
authors.initials: N
authors.lastname: Nasseri
authors.affiliation: Electronics Laboratory, Swiss Federal Institute of Technology, Gloriastrasse 35, 8092, Zurich, Switzerland.
authors.forename: Christoph
authors.initials: C
authors.lastname: Zysset
authors.affiliation: Electronics Laboratory, Swiss Federal Institute of Technology, Gloriastrasse 35, 8092, Zurich, Switzerland.
authors.forename: Lars
authors.initials: L
authors.lastname: Büthe
authors.affiliation: Biomedical Optics Research Laboratory, Division of Neonatology, University Hospital of Zürich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.|Institute for Biomedical Engineering, Swiss Federal Institute of Technology, Wolfgang-Pauli-Str. 27, 8093, Zurich, Switzerland.
authors.forename: Stefan
authors.initials: S
authors.lastname: Kleiser
authors.affiliation: Electronics Laboratory, Swiss Federal Institute of Technology, Gloriastrasse 35, 8092, Zurich, Switzerland.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Tröster
authors.affiliation: Biomedical Optics Research Laboratory, Division of Neonatology, University Hospital of Zürich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.
authors.forename: Martin
authors.initials: M
authors.lastname: Wolf
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D006801:Humans; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010108:Oxyhemoglobins / Q000378:metabolism; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013784:Textiles; D055815:Young Adult
chemical_list: D010108:Oxyhemoglobins; D010100:Oxygen