endurance – CHASKi

First Ventilatory Threshold (VT1): The physiological key to your endurance performance

by Consuelo SotoEnglish, Science July 1, 2025No Comments

As experts in physiology and performance, we know that endurance success lies in deeply understanding our body’s signals. Today, we’ll delve into a fundamental concept for athletes and coaches: the First Ventilatory Threshold (VT1). The First Ventilatory Threshold, or VT1, is a critical physiological point during progressive exercise. It represents the exercise intensity at which a …

Primer Umbral Ventilatorio (VT1): La clave fisiológica de tu resistencia

by Consuelo SotoCiencia, Español July 1, 2025July 1, 2025No Comments

Como expertos en fisiología y rendimiento, sabemos que el éxito en el endurance reside en comprender a fondo las señales de nuestro cuerpo. Hoy, profundizaremos en un concepto fundamental para atletas y entrenadores: el Primer Umbral Ventilatorio (VT1). ¿Qué es el primer umbral ventilatorio (VT1)? El Primer Umbral Ventilatorio, o VT1, es un punto fisiológico crítico …

Why Monitoring RPE—and Comparing It to Respiratory Frequency—Matters More Than You Think

by Consuelo SotoEnglish, Science June 13, 2025No Comments

In endurance training, Rating of Perceived Exertion (RPE) has long been a trusted compass—an intuitive guide to how hard an athlete feels they’re working. But how reliable is this perception in real-time, especially under fatigue, heat, or glycogen depletion? More importantly, can we measure how well athletes are controlling their RPE, and should we compare what they …

¿Por qué controlar la PSE—y compararla con la frecuencia respiratoria—es más importante de lo que crees?

by Consuelo SotoCiencia, Español June 13, 2025June 13, 2025No Comments

En el entrenamiento de endurance, la Percepción Subjetiva de Esfuerzo (PSE) ha sido durante mucho tiempo una brújula confiable: una guía intuitiva del esfuerzo que siente un atleta. Pero, ¿qué tan preciso es este indicador en tiempo real, especialmente bajo fatiga, calor o depleción de glucógeno? Y más aún, ¿podemos medir qué tan bien los atletas controlan su PSE …

La estrategia de carrera comienza en tu fisiología: por qué alinear la distancia en que compites con tus umbrales ventilatorios marca la diferencia

by Consuelo SotoCiencia, Español June 12, 2025June 12, 2025No Comments

El éxito en los deportes de resistencia no se trata solo de esfuerzo: se trata de precisión. Una de las estrategias de rendimiento más subestimadas es alinear el ritmo de carrera con tus umbrales ventilatorios. Ya sea que prepares un 10K o una ultra de 100 millas, entender cómo cada distancia se relaciona con tus límites fisiológicos internos …

Race Pacing Starts with Physiology: Why Matching Distance to Your Thresholds Matters

by Consuelo SotoEnglish, Science June 11, 2025June 12, 2025No Comments

Success in endurance sports isn’t just about grit—it’s about precision. One of the most overlooked performance strategies is aligning your race pacing with your ventilatory thresholds. Whether you’re targeting a 10K or a 100-miler, understanding how each race maps to your body’s internal limits is critical. That’s exactly where CHASKi steps in. CHASKi is the first wearable designed specifically for …

The Science of Breathing: How RMT Enhances Aerobic Power and Delays Fatigue

by Consuelo SotoEnglish, Science May 23, 2025June 12, 2025No Comments

When endurance athletes hit a plateau, they often look to tweak training intensity, diet, or recovery. But one critical and often overlooked component might be holding them back: respiratory muscle function. The muscles that power our breathing—like the diaphragm and intercostals—are trainable, and targeted respiratory muscle training (RMT) can deliver measurable performance gains, even for already well-trained …

CHASKi: A Wearable Game-Changer for Endurance Athletes

by Consuelo SotoEnglish, Science February 19, 2025February 20, 2025No Comments

Revolutionizing Performance Monitoring with CHASKi For endurance athletes, understanding ventilatory thresholds (VT1 and VT2) is crucial for optimizing training and maximizing performance. Traditionally, these thresholds are measured using ergospirometry—an accurate but cumbersome lab-based method. Now, with CHASKi, you can access the same gold-standard data in the field. But how well does it stack up against …

Why Heart Rate Alone Isn’t Enough: Rethinking Performance Metrics

by Renee LeathermanEnglish, Science January 30, 2025No Comments

For decades, heart rate has been the go-to metric for athletes and coaches aiming to optimize performance. It’s convenient, widely accessible, and often seen as a universal marker of effort. However, heart rate is far from perfect. Recent research, including findings from the Journal of Sports Science and Medicine (Tocco, 2015), highlights significant limitations of …

Ventilatory Thresholds vs. Lactate Thresholds: Are They Competitors or Complementary Metrics?