The Athletic Quickness Speed Training Blog

Dr. Larry VanSuch dismantles the linear Piston Lite fallacy in corporate footwear design. Discover why Kenneth Clark’s Two-Mass Model relies on a rigid block illusion that completely fails to explain how a sprinter balances rotational torque to maintain their lane.

Dr. Larry VanSuch exposes the fatal geometric error behind Peter Weyand’s 2000 speed study. Discover how millions of dollars in institutional grants funded a flat checkers-level pogo stick model that would physically crush a human hip socket in real life.

Dr. Larry VanSuch exposes the fatal single-axis error behind Peter Weyand’s 2000 Harvard speed study. Discover why trying to stomp the ground harder without balancing the 3D pelvic centrifuge will never move your speed needle a single dot.

🏛️ Academic Data Audit Spotlight The Analyzed Study: Upper extremity function in running. II: Angular momentum considerations. The Lead Author: Dr. Richard N. Hinrichs The Research Institution: Arizona State University, Tempe, AZ, USA Official Publication Record: International Journal of Sport Biomechanics (1987), 3(3), 242-263. Official Dataset Verification: Review the Full 1987 ASU Baseline Angular Momentum […]

Expose the multi-generational symmetrical arm-swing cancellation myth and non-rotational textbook errors born in Richard Hinrichs’ 1987 academic archives. Discover how his baseline ignorance of structural limb constraints fumbled real-world sports performance and industrial infrastructure loops, mistaking a flat 14-point plywood shadow puppet show for real forward human locomotion.

Expose the multi-generational two-mass model and non-rotational upper body fallacies born in Kenneth Clark’s SMU elite tracking archives through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover how 2D “Piston Lite” equations fumbled real-world athletic footwear innovation loops, and explore your proprietary 3-versus-1 asymmetrical torque equations.

Expose the multi-generational linear planar arm model and midline crossover fallacies born in Ralph Mann’s USATF elite tracking archives through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover how 2D kinematic coordinate tracking fumbled real-world sports, healthcare, and robotics architectures, and explore your proprietary 3-versus-1 asymmetrical torque equations.

Expose the multi-generational 2-vs-2 symmetrical cancellation model and relative momentum fallacies born in Richard Hinrichs’ 1987 treadmill laboratory through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover how forward-motionless tracking fumbled real-world locomotion, and explore your proprietary 3-versus-1 asymmetrical torque equations.

🔬 Academic Study Spotlight The Promoted Concept: The Force-Velocity-Power (FVP) Profile and Ratio of Force (RF) The High-Profile Organization: Dr. Jean-Benoît Morin and the University of Nice Sophia Antipolis The Standardized Jargon Bow: Horizontal Force Orientation Capability and Index of Force Application Efficiency (DrF) The Original Seeding Source Lineage: Dr. Peter Weyand’s 2000 Harvard Treadmill […]

Review the standardized NSCA track running form guidelines through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover why their Chapter 19 speed and agility manuals fumble the pelvic torque centrifuge, and learn how their forced “shoulder-freeze” protocol copies the exact upper body mechanical mistakes that Hinrichs was never held to account for.

🔬 Academic Study Spotlight The Promoted Concept: The Spring-Mass Model of Human Locomotion The High-Profile Organization: The National Strength and Conditioning Association (NSCA) [Explicit Claim] The Standardized Certification Ground: Essentials of Strength Training and Conditioning Curriculum / Certified Strength and Conditioning Specialist (CSCS) National Blueprint [Explicit Claim] The Original Seeding Source Lineage: Dr. Peter Weyand’s […]

Review the celebrated Penn State center-of-mass running model through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover why Zatsiorsky’s kinematic coordinate theories fumble the pelvic torque centrifuge, and learn how he confused the net result of a lost battle with the active direction of the force vector.

🎬 Introduction: Applauding the Ultrasound Data In 2011, researchers from the Neuromuscular Research Center at the University of Jyväskylä, Finland, led by Dr. Jukka Salmi and Dr. S. Ishikawa, published heavily cited locomotive papers centered around tendon elastic strain energy. 🏛️ The Forced Tendon Imaging Protocol To isolate the precise relationship between lower limb muscle-tendon […]

Review the celebrated Harvard University Spring-Mass running model through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover why the “rubber bouncy ball” high-jump theory fumbles the pelvic torque centrifuge, and learn how the unyielding laws of multi-axis balance determine the exact microsecond your body decides to lift off.

Review the celebrated 2014 University of Cape Town metabolic running study through the unyielding engineering lens of the Ultimate Running Speed Equation. Discover why a forced eleven percent spike in oxygen consumption has absolutely nothing to do with a missing passive cushion, and learn how binding a runner’s arms forces a catastrophic full-body torque emergency.

🎬 Introduction: Applauding the Baseline Data In the year 2000, researchers from Harvard University’s Concord Field Station published a highly celebrated locomotive study in the Journal of Applied Physiology. To isolate the precise biomechanical factors that dictate maximum velocity, their research team used state-of-the-art high-speed treadmills and highly calibrated linear force plates. The factual metrics […]

The celebrated 2012 Melbourne simulation claimed the body shifts from an ankle strategy to a hip strategy at 7 m/s. Discover why their data perfectly validates URSE Law #4.

The advanced 2026 full-body simulation recorded a 2.59% speed surge when hip flexor strength rose. Discover why their data perfectly validates URSE Law #4.

The advanced 2025 Tokyo/KAIST simulation claimed the arm swing provides zero propulsion while serving as a passive damper. Discover why their virtual human perfectly proves your URSE laws.

The foundational Bunn and Hay textbooks claimed the arm swing provides zero propulsion while serving as a passive damper. Discover why their models perfectly prove your URSE laws.

Frans Bosch’s landmark textbook claimed the arm swing provides forward linear thrust while fumbling the net math. Discover why his numbers perfectly prove your URSE laws.

Craig Macadam’s systematic review compiled decades of arm mechanics data and called the mechanism ambiguous. Discover why their numbers perfectly prove your URSE laws.

Richard Hinrichs claimed that the arm swing functions merely as a passive mass-damper. Discover why his data actually proves your arms function as active torque multipliers.