performance – Chaski Store

11 Marathons, 11 Days, One Purpose: Renato Walkowiak’s Journey with CHASKi

by Consuelo SotoEnglish, Performance, Press Release, Science March 30, 2026March 30, 2026No Comments

What would it take for a recreational runner to complete eleven marathons in eleven consecutive days? For Renato Walkowiak, the answer was not just determination. It was also physiology, smart coaching, and a meaningful cause. In the summer of his challenge, Renato set out to run 11 marathons in 11 different cities across France. The symbolic number …

Nasal vs Oral Breathing During Exercise: What Happens as Intensity Increases

by Consuelo SotoBreathwork, English, Performance, Science, Validations March 17, 2026March 17, 2026No Comments

How breathing patterns shift across ventilatory thresholds and what it means for endurance training, exercise physiology, and respiratory efficiency. Breathing is one of the most important physiological processes during exercise, yet it is rarely something athletes or coaches actively observe. As exercise intensity increases, the way we breathe changes significantly. Understanding the transition between nasal …

Breathing Patterns and Lung Function: What Endurance Athletes Can Learn from Recent Research

by Consuelo SotoBreathwork, Performance, Science March 13, 2026No Comments

Breathing is the most constant movement we perform throughout the day. Yet it is also one of the least examined aspects of human physiology. For endurance athletes and coaches, breathing is usually associated with ventilation, oxygen uptake, and the response to exercise intensity. But recent research suggests that something even more basic may matter just …

Breathwork for Endurance Athletes: How to Integrate Breathing Training Into Your Program

by Consuelo SotoBreathwork, English, Performance, Science March 10, 2026No Comments

In recent years, breathwork has moved from yoga studios and mindfulness apps into the world of performance training. Coaches and athletes are increasingly recognizing that breathing is not only a passive process but also a trainable component of physiology. For endurance athletes in particular, the way we breathe influences efficiency, recovery, and the interaction between …

What Breathwork Really Is and Where Respiratory Training Is Headed

by Consuelo SotoBreathwork, English, Science November 18, 2025February 12, 2026No Comments

In recent years the word breathwork has become ubiquitous. It appears in wellness programs, recovery routines and even in high-performance training environments. But what does it actually mean? Is it just a trend, or are we looking at a tool with solid physiological foundations? The answer lies in how we understand breathing itself. Breathing is much more …

Unlocking Endurance: The Science and Practice of Zone 2 Training

by Consuelo SotoEnglish, Performance, Science August 29, 2025February 18, 2026No Comments

In the endurance sports world, few topics have generated as much discussion lately as Zone 2 training. Once considered a basic form of “long, easy miles,” this intensity zone is now at the center of debates among coaches, athletes, and scientists. But what exactly is Zone 2, why does it matter, and how can athletes make …

Your Breathing, Your Identity: The Science of Respiratory Fingerprints

by Consuelo SotoEnglish, Health, Science August 22, 2025February 18, 2026No Comments

A new study published in Current Biology reveals that each of us has a unique nasal respiratory fingerprint, an individually specific and stable pattern of breathing. This groundbreaking research shows that these “fingerprints” can be used to identify individuals with near-biometric accuracy and provide significant insights into a person’s physiology, emotional state, and even cognitive traits. For coaches and …

CHASKi on the Track: Lab-Grade Precision in the Real World

by Consuelo SotoEnglish, Science, Validations August 14, 2025February 12, 2026No Comments

For decades, physiological testing for endurance athletes has been dominated by laboratory-based ergospirometry—bulky equipment, masks, and controlled environments. While these setups are the gold standard for measuring key markers like ventilatory thresholds (VT1, VT2) and respiratory rate (RR), they come with limitations: cost, accessibility, and an environment that often feels far removed from real racing …

Breaking your limits: how to train and improve VT2 for high intensity

by Consuelo SotoEnglish, Performance, Science July 23, 2025February 18, 2026No Comments

In our constant pursuit of unraveling the secrets of endurance performance, we’ve already explored the First Ventilatory Threshold (VT1) as the foundation of our endurance. Today, we’ll raise the intensity to understand the next physiological milestone: the Second ventilatory threshold (VT2). What is the Second Ventilatory Threshold? The Second Ventilatory Threshold, commonly known as VT2 or also called …

Rompiendo tus límites: cómo entrenar y mejorar el VT2 para la alta Intensidad

by Consuelo SotoCiencia, Español, Rendimiento July 23, 2025February 18, 2026No Comments

En nuestra constante búsqueda por desentrañar los secretos del rendimiento en endurance, ya hemos explorado el Primer Umbral Ventilatorio (VT1) como la base de nuestra resistencia. Hoy, elevaremos la intensidad para comprender el siguiente hito fisiológico: el Segundo Umbral Ventilatorio (VT2). ¿Qué es el Segundo Umbral Ventilatorio? El Segundo Umbral Ventilatorio, comúnmente conocido como VT2 o también llamado …

Tag: performance