Respiratory Rate as a Marker of Cognitive Load
When we engage in mentally demanding tasks, something changes almost immediately in our physiology. Long before we become…
CHASKi Blog
Evidence-based insights, protocols, and tools to understand breathing, improve health, and elevate performance
What Breathwork Really Is and Where Respiratory Training Is Headed
In recent years the word breathwork has become ubiquitous. It appears in wellness programs, recovery routines and even in high-performance…
Breathing your way to lower blood pressure: what we learned with CHASKi
High blood pressure affects roughly one in three adults around the world, making it one of the most…
Breathe to Heal: How Slow Breathing Naturally Reduces Blood Pressure
For years, hypertension has been known as the silent killer, a chronic rise in blood pressure that increases cardiovascular…
Unlocking Endurance: The Science and Practice of Zone 2 Training
In the endurance sports world, few topics have generated as much discussion lately as Zone 2 training. Once considered…
Your Breathing, Your Identity: The Science of Respiratory Fingerprints
A new study published in Current Biology reveals that each of us has a unique nasal respiratory fingerprint, an individually specific…
CHASKi on the Track: Lab-Grade Precision in the Real World
For decades, physiological testing for endurance athletes has been dominated by laboratory-based ergospirometry—bulky equipment, masks, and controlled environments.…
Breaking your limits: how to train and improve VT2 for high intensity
In our constant pursuit of unraveling the secrets of endurance performance, we’ve already explored the First Ventilatory Threshold…
First Ventilatory Threshold (VT1): The physiological key to your endurance performance
As experts in physiology and performance, we know that endurance success lies in deeply understanding our body’s signals.…
Why Monitoring RPE—and Comparing It to Respiratory Frequency—Matters More Than You Think
In endurance training, Rating of Perceived Exertion (RPE) has long been a trusted compass—an intuitive guide to how…
Race Pacing Starts with Physiology: Why Matching Distance to Your Thresholds Matters
Success in endurance sports isn’t just about grit—it’s about precision. One of the most overlooked performance strategies is…
The Science of Breathing: How RMT Enhances Aerobic Power and Delays Fatigue
When endurance athletes hit a plateau, they often look to tweak training intensity, diet, or recovery. But one…
Why VO₂max Is the Health Metric Everyone Should Track—Not Just Athletes
In the world of endurance sports, VO₂max—the maximal rate of oxygen consumption during intense exercise—has long been used to…
CHASKi: A Wearable Game-Changer for Endurance Athletes
Revolutionizing Performance Monitoring with CHASKi For endurance athletes, understanding ventilatory thresholds (VT1 and VT2) is crucial for optimizing…
Why Heart Rate Alone Isn’t Enough: Rethinking Performance Metrics
For decades, heart rate has been the go-to metric for athletes and coaches aiming to optimize performance. It’s…
Ventilatory Thresholds vs. Lactate Thresholds: Are They Competitors or Complementary Metrics?
Ventilatory Threshold and Lactate: Complementary Metrics for Smarter Training In the world of endurance training, metrics reign supreme.…
HIIT vs. Sprint Intervals: How to Optimize VO₂max for Endurance Athletes
Maximal oxygen uptake (VO₂max) is the cornerstone of endurance performance, and two recent studies confirm that aerobic high-intensity interval…
Unlocking Performance Gains: The Power of Personalized Training Zones with CHASKi
Understanding the science behind exercise testing and training intensity zones is key to optimizing performance for endurance athletes.…
Introduction to Breathwork for Endurance Athletes
Research suggests that controlled, deliberate breathing patterns can dramatically affect sports outcomes. For instance, specific breathing techniques have…
CHASKi Teams Up with UTC- ButcherBox Cycling p/b LOOK
As sports technology continues to advance, the integration of new tools into training is becoming crucial to optimize…
Could Respiratory Rate Serve as a Superior Indicator of Physical Effort?
Metrics like heart rate, speed, and power have long been the gold standard for monitoring physical effort during…
Knowing When to Rest: How to Avoid Overtraining by Monitoring Recovery and Respiratory Rate
Proper rest and recovery are essential components of any successful training program. At CHASKi, we believe that understanding…
Estimate Your Maximal Lactate Steady State Using Ventilatory Thresholds
Understanding the maximal lactate steady state (MLSS) is crucial for endurance athletes, as it signifies the highest intensity…
CHASKi Running Validation Study: Preliminary Results
We recently conducted a preliminary study to further validate CHASKi’s technology against the gold standard on the treadmill.…
Training at altitude with CHASKi
The benefits of altitude training Altitude training is common practice among endurance athletes seeking to improve performance. It is…
How to improve VO2 max?
Bike protocol for ventilatory threshold determination test
Our test is maximal and stepwise, starting with a 3-minute warm-up at 50 watts, then ramping up to…
[Whitepaper] Assessment of ventilatory thresholds for zone training: Can they be obtained outside the laboratory?
Do you want to know what options exist to assess ventilatory thresholds and how you could do it…
Does it make any difference how you train?
This recent systematic review evaluated the use of different training methodologies, considering training intensity distribution (TID) as the…
Did you know that all people who train based on their thresholds increase their VO2max?
Among the components of the exercise prescription, intensity is arguably the most important. If the intensity is too…
CHASKi raises USD 300K in Seed round and prepares for market launch
The raised capital will allow the company to launch to market its wearable respiratory assessment system for athletes…