Train.Red provides a wearable near‑infrared spectroscopy sensor that measures muscle oxygen saturation (SmO₂) and hemoglobin dynamics in real time. The sensor streams data to a mobile app that classifies muscle activity into five states, offers smart rest cues, and generates detailed post‑session reports, helping endurance and strength athletes and their coaches fine‑tune training intensity, fatigue management, and recovery.
Funding
Funding not disclosed
Founders
Product
Problem
Athletes and coaches typically rely on speed, power, and heart‑rate metrics, which do not reveal how much oxygen individual muscles are actually receiving during effort. Without direct muscle‑oxygen data, training intensity, fatigue, and recovery are often mis‑gauged, leading to sub‑optimal performance and higher injury risk.
Solution
Train.Red offers a wearable muscle‑oxygen (SmO₂) sensor that uses near‑infrared spectroscopy to measure local tissue oxygen saturation and hemoglobin dynamics in real time. The sensor streams data via Bluetooth Low Energy to the Train.Red app, where an intelligent algorithm classifies muscle activity into five distinct states—from recovery to high‑load—providing actionable feedback such as “Smart Rest” cues and real‑time power‑zone guidance. Users can view detailed post‑session reports that include muscle‑oxygen trends, Muscle Stress Score, and supply‑demand balance, enabling precise adjustments to training load and recovery intervals. The system integrates with popular platforms (e.g., Garmin) and supports third‑party sensors, allowing athletes to incorporate muscle‑oxygen insights alongside existing metrics for a more complete performance picture.
Target Audience
Primary users are endurance and strength athletes—such as cyclists, runners, swimmers, and weightlifters—and their coaches who need precise physiological feedback to fine‑tune training intensity and recovery.
Features
- Near‑infrared spectroscopy (NIRS) sensor that measures muscle oxygen saturation (SmO₂) and hemoglobin difference (HbDiff) on the skin surface
- Bluetooth Low Energy connectivity to the Train.Red mobile app with up to 24 hours of continuous measurement on a single charge
- Real‑time classification of muscle states (recovering, easy, moderate, hard, load) and automatic “Smart Rest” recommendations based on desaturation trends
- Post‑workout analytics including Muscle Stress Score, supply‑demand balance, and detailed SmO₂ time series for each muscle region
- Compatibility with external platforms (Garmin Connect, third‑party sensors) and optional daylight‑protection patches for accurate readings in bright conditions
- Waterproof FYER sensor variant for outdoor use; interchangeable sensor models (FYER, PLUS) for different sport requirements