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The "What,"  "Why,"  and "How" Of Human Performance  

The Physiologial Profile Test (PPT) is a controlled, continuous protocol that measures various metrics such as speed, power, heart rate, and blood lactate .

 

The PPT measures bioenergetic availability each user has available to perform work across eight lactate systems, as detailed in the Bioenergetic Power Score (BEPS). 

 

The PPT addresses the "WHAT", "WHY",  AND "HOW":

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  • "WHAT" type of bioenergy (lactate systems) an athlete has available to perform work

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  • "WHY" the athlete may or may not be improving in her/his training or performances

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  • "HOW" the athlete should steer her/his training to enhance physiology for better performances

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  • The primary purpose of using a PPT is to enhance performance outputs by creating the appropriate training stimulus for peak results when it counts. PPT reveals individual strengths and weaknesses, enabling dynamic periodization plans that maximize potential and minimize overload risks. 

Physiological Profile Test (PPT)
Results Overview

BioEnergetic Power Scores
BEPS ™ 

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Developed as a core component of SBT™ , BEPS ™ represents a revolutionary metric for assessing an athlete's internal energy output across the full spectrum of bioenergetic systems.  BEPS quantifies the "human energy currency"—lactate—as a measure of constant net power production in eight distinct lactate systems, moving beyond traditional lactate concepts such as "LT1", "LT2", and "lactate threshold".

System Based Training ™ Overiew

​System Based Training is a physiology-first training model developed by MyBya Founder, Shannon Grady, to enhance athletic performance outputs by aligning training stimuli with an athlete's unique bioenergetic profile. Evolving from Grady's 20+ years of field studies with over 100,000 athletes since the early 2000s, SBT integrates scientific principles of lactate metabolism, lactate dynamics, applied biochemistry, applied physiology, and nutrition. This methodology has produced numerous Olympic, World, NCAA, and high school champions across 20+ individual events and team sports, offering a reliable, measurable framework to accelerate, repeat, and predict performance gains.​

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SBT addresses the disconnect Grady observed at the highest levels of sports science, where traditional testing often failed to translate into optimized training plans. By fostering a symbiotic relationship between scientists and coaches, SBT eliminates guesswork, ensuring training is tailored to each athlete's physiological capabilities rather than generic protocols.

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Core Principles and Components

SBT takes a comprehensive approach to performance optimization by providing in-depth biomarker analysis and data application to support coaches, athletic staff, and athletes. 

SBT's proprietary analysis and algorithms combined its unparalleled application bridge the gap between physiological data and individualized, actionable plans leading to optimized performance results. 

SBT is built on a scientific foundation, combining objective data from Physiological Profile Testing (PPT) with dynamic training prescriptions.

SBT's key components include:

  • Physiology First Model: Prioritizes objective physiological data such as real-time lactate and heart rate data over external or subjective measures, ensuring training aligns with an athlete's current physiological status.  

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  • Dynamic Periodization: Adapts training phases based on repeat testing and real-time data, optimizing physiological adaptations for specific performance goals.

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  • Lactate System Focused Workouts. 

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  • Bioenergetic Power Score (BEPS): Quantifies energy output across eight lactate systems, guiding individualized prescriptions and tracking progress.

Recovery and Maintenance (R&M)

Ability to perform work using primarily aerobic energy sources such as free fatty acids and blood glucose. Recovery and Maintenance training is less than 45 minutes of continuous low-intensity work performed at Zone 1 to Zone 2 low heart rates.

 

Physiological Objective: To promote recovery and gluconeogenesis following glycogen-depleting training such as high-intensity intervals or workouts longer than 60 continuous minutes. Maintenance of cardiovascular and skeletal muscle adaptations. 

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