Science & Clinical Consulting
Research methodology, data science, and clinical education
Research & data science
I consult on study methodology for sport & exercise physiology research: experimental protocol design, data processing, and statistical analysis. Current collaborations include five laboratory groups at UBC and principal investigators and students at other Canadian and international universities. See Publications for collaborative work.
- Translating research questions into appropriate experimental design and statistical tests
- mNIRS: protocol design, signal processing, analysis, interpretation, application
- Generalised and hierarchical (mixed-effects) modelling, equivalence testing
- Reproducible project architecture (Git, {targets}, Quarto)
- Data visualisation and publication figures
- R package and Shiny app development
Clinical education & athlete consulting
Internationally recognised clinical researcher in flow limitations in the iliac arteries (FLIA) and sport-related vascular conditions in endurance athletes. Collaborator with the International Study group for Identification and Treatment of Endofibrosis (INSITE).
Contact
Email jem@jemarnold.ca with a short description of your project or question.
Podcasts
- Maximise performance using NIRS with Jem Arnold. Progress Theory Podcast 2025.
- Training Models and Physiological Thresholds - Jem Arnold. 1 % Better - Hidden Stories in Sport 2025.
- Perspectives #38: Training Intensity Distributions, NIRS, and Iliac Arteries, with Jem Arnold. Empirical Cycling Podcast 2025.
- Forget what the internet says - any training model works. Escape Collective - Performance Process Podcast 2025.
- Episode 38: Iliac artery Endofibrosis in Cycling: Symptoms, Diagnosis and Treatment, with Jem Arnold. Sitkotalks podcast 2025.
- Training above or below threshold to improve V̇O₂max and performance and interpreting group-level research to individual-level application EP#420. That Triathlon Show Podcast by Scientific Triathlon 2023.
- Muscle oxygen saturation and iliac artery flow limitation with Jem Arnold | EP#358. That Triathlon Show Podcast by Scientific Triathlon 2022.
- #3 - Jem Arnold - NIRS Breakpoints, Cycling, Thresholds, Limitations. Oxidative Potential Podcast 2022.
- Jem Arnold on Moxy Monitor Sensor Placement and SmO2 Interpretation. Upside Strength Podcast with Sean Seale 2021.
- Jem Arnold & Andrew Sellars on the Theory and Practice of Physiological Thresholds. Upside Strength Podcast with Sean Seale 2021.
Written media
- This ‘Occupational Hazard’ of Pro Cycling Ended a Career. It Could Come for You. Velo 2026.
- Why are so many pro cyclists getting iliac artery surgery? Escape Collective 2025.
- Iliac Artery Endofibrosis is increasingly prevalent among pro and amateur cyclists - here’s what you should know. Cycling Weekly 2023.