ArticleEuropean journal of applied physiology2025
The impact of skinfold thickness and exercise intensity on the reliability of NIRS in the vastus lateralis.
Article in European journal of applied physiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Regional tissue oxygenation during high-intensity exercise following voluntary isocapnic hyperpnea versus inspiratory threshold loading in endurance-trained individuals: a randomized controlled trial.Scientific reports · 2026Trial
- Muscle oxygenation measured by near-infrared spectroscopy during resistance training: A scoping review.Physiological reports · 2026Article
- Monte Carlo-based correction of geometric and instrumental biases in single-distance time-domain near-infrared spectroscopy on skeletal muscle.Biomedical optics express · 2026Article
- Distinguishing Muscle Oxygen Saturation from Tissue Oxygen Saturation: Accuracy, Limitations, and Practical Utility in Muscle Oximetry.Sports medicine - open · 2026Article
- Muscle and cerebral oxygenation during exercise in fibromyalgia: a near-infrared spectroscopy study.European journal of applied physiology · 2026Article
- Steepest near-infrared spectroscopy-derived deoxygenation slopes during arterial occlusions provide more reliable assessments of muscle mitochondrial capacity.Experimental physiology · 2026Article
- An exercise intervention in children and young adults with McArdle disease: feasibility, acceptability, and clinical outcomes.Orphanet journal of rare diseases · 2026Article
- Article
- Time-variability of muscle oxygen saturation during graded maximal exercise.European journal of applied physiology · 2026Article
- Predicting Heart Rate Slow Component Dynamics: A Model Across Exercise Intensities, Age, and Sex.Sports (Basel, Switzerland) · 2025Article
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Abstract
purposeThe aims of this study were (1) to assess the test-retest reliability of the primary near infrared spectroscopy (NIRS) variables (i.e., StO
methods21 men and 20 women completed twelve constant work rate tests (6 min) at six different exercise intensities with each intensity performed twice. NIRS variables were measured at the vastus lateralis. The coefficient of variance (CV%), the intraclass correlation coefficient (ICC), mean bias and limits of agreement (LoA) were determined for reliability purposes.
resultsThe reliability of baseline values were acceptable to very good (CV% range: 5.83 - 21.96%). The reliability of end-values (CV% range: 0.02 - 25.02%, ICC range: 0.0 - 0.935) and amplitudes (CV% range: 0.46 - 5099%, ICC range: 0.0 - 0.887) were more variable. In general, the mean biases of end-values and amplitudes showed wide limits of agreement. A homogeneous influence of exercise intensity on reliability could not be established but reliability measures appeared to be lower in people with a lower skinfold thickness. Moreover, the NIRS signals decreased with increasing ATT but stabilized upon reaching a cut-off of 8 mm ATT. In addition, ATT did have a significant influence on [HHb] amplitude. In participants with ATT < 8 mm, higher amplitudes were observed with increasing intensity whereas in participants with ATT > 8 mm, there were no differences between the intensities.
conclusionThe study reveals variable results with regards to reliability and there was no consistent influence of exercise intensity on reliability. Participants with a lower skinfold thickness showed stronger reliability. Moreover, NIRS signals decrease when ATT exceeds 8 mm. Careful consideration is necessary when interpreting NIRS signals in such cases.
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