Vorträge beim SICI Cycling Science (englisch)

bike2b-Redaktion am 22.02.2008 - 14:43 Uhr

Beyond Power: Measuring Pedal Forces – Björn Stapelfeldt (Radlabor GmbH)
Biomechanical performance diagnosis in cycling is relevant for both performance enhancement and rehabilitation aspects. Elite cyclists seek to optimize force transmission to minimize their effort for a given power-output. This is a question of pedalling technique or mechanical economy. After injuries or when problems occur with the musculoskeletal system during or after cycling it might be necessary to get complex but concise information about the cycling or pedalling movement and the corresponding forces. This information has to be available directly after or even simultaneously to the measurement. A new technique of measuring pedal forces with a device mounted between the crank and the pedal in combination with an online-feedback software provides new prospects in biomechanical performance diagnosis and enhancement.

Foot Position and Pedaling Mechanics - Maury Hull
State-of-the-art methods for analyzing the mechanics of pedaling, particularly the loads transmitted by the knee will be described. These methods will be applied to study the effect of foot position on knee loads and muscle activation. Results will be related to overuse knee injury.

The Cyclists Knee: Common Injuries, Causes and Solutions - Andy Pruitt
The most common injuries reported by cyclists involve the knee. Dr. Pruitt will cover the most common knee related medical issues, especially those that can arise from an improperly fit bicycle. Dr. Pruitt will include recognition and treatment suggestions.

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Myth and Science in Cycling: Crank Length and Pedaling Technique - Jim Martin
During this provocative presentation, Dr. Martin will discuss several position and equipment strategies to improve cycling performance and whether there is any scientific evidence that they actually meet the stated objective of going faster.

Dynamic Bike Fitting - Todd Carver
What is dynamic fitting and how do you do it? Dynamic bike fitting involves positioning cyclists based on data collected while they ride under load. Todd will show you how to use computer-assisted motion capture, power output and heart rate data to assist in defining an optimal cycling position. He will focus on the techniques used by the Boulder Center for Sports Medicine to optimize individual cycling positions.

Fit Business Fundamentals – Paul Levine
Learn the secrets on what it takes to build a fitting business in to a multi-million dollar enterprise. Learn how simple principles of good business executed to perfection return exponential dollars on your investment. Learn why some fit businesses fail and others flourish. We will explore the fundamentals of operating a specialized service business and apply them to bike fitting. This is a workshop lecture session where ideas, principles and strategies of business are presented in such a way where you and your colleagues will leave with tools to change the way you do business from day one.

Biomechanics of Elite Cyclists - Jeff Broker
How do the elite ride and what can be translated to every cyclist? Dr. Broker will present cycling biomechanics data collected from his many years working with elite cyclists at the Olympic Training Center. He will discuss how elite cyclists produce power during cycling and the differences between road, mountain bike, track and triathlon disciplines. Dr. Broker will also present data on how feedback can be used to improve cycling performance in elite athletes.

The Risks and Benefits of Varus, Valgus or Neutral Forefoot Alignment in Cycling – Katrina Vogel
Forefoot alignment is a hotly debated topic in the cycling world. The forefoot can be tilted out (varus) or tilted in (valgus) or positioned flat relative to the pedal. Forefoot tilt can be altered inside the shoe (orthotics, inserts) and outside the shoe (wedges). Which forefoot position is optimal for efficiency and performance? How does forefoot angle impact the cyclist and what risks & benefits are associated with each position? This lecture session will address forefoot tilt and the biomechanical implications of varus, valgus and neutral forefoot positions with adaptations in and out of the shoe.

Pelvic Motion and Saddle Pressure during Seated Cycling – Darryl Thelen, Heidi Ploeg
Pelvic motion and saddle loading are considered important factors in assessing bicycle fit and risk for saddle-related pathologies. In our laboratory, we have used motion analysis tools to investigate the coupling between pelvic motion and saddle pressure throughout a pedal stroke. In this seminar, we will review the influence that gender, hand position and anatomical factors have on these measures, and discuss the relevance for saddle design and fitting.

Functional Anatomy for Cyclists – Stuart Rugg
Need a quick refresher of basic cycling anatomy? This lecture will present an overview of functional anatomy relative to cycling. Topics include: pedal cycle erminology, major muscles/joints used during cycling, pedal forces, normal postural and lower extremity alignment, assessment of sagittal plane joint motion (flexibility), frontal plane knee alignment and foot alignment.

Small Changes in Body Position and Saddle Design: Influence on Optimal Cycle Positioning? Dan Heil
This presentation will highlight several recent research studies from the MSU Movement Science/Human Performance Lab focusing on issues commonly encountered during bike fitting. Specifically, this research will include a discussion of how small changes in hip angle, such as those caused by saddle or handlebar position changes, may influence the energy cost of cycling. In addition, preliminary data on the influence of saddle design on placing the body relative the bicycle, as well as the subsequent influence on measures of "apparent" seat-tube angle and body position, will be highlighted.

Cycling as a Rehabilitation Tool for Orthopedic and Neurologic Conditions – Therese Johnston
This presentation will focus first on how knowledge from cycling biomechanics studies can assist with decision making for cycling interventions in orthopedic and neurologic rehabilitation. Secondly, this course will address the use of cycling with functional electrical stimulation for individuals with neurologic conditions.

Foot/Pedal Interface: The Real World Approach – Paul Swift
Learn HANDS-ON how to make proper cleat and pedal adjustments to maximize power, increase efficiency and improve comfort. The session includes medial-lateral (stance width), rotation and tilt/angle (varus/valgus) and fore-aft adjustments. Go through the process with assessment of the feet (static) and cycling mechanics (dynamic). Bring your cycling shoes, pedals and shorts and be prepared to be one of the several subjects in this class. The Robustness of the Cycling Pattern? - Guillaume Mornieux Pedaling effectiveness, joint moments or muscular activity of the leg are useful parameters to describe the cycling pattern. The aim of this presentation is to determine to what extent the pedalling pattern remains robust in face of foot-pedal connection alteration, pedaling technique modification or hypoxia exposure.

Sex and Saddles: What is the problem? What is the fix? – Steve Schrader
A scientific look at a problem as old as the bicycle itself: genital pain, numbness, and sexual issues which are associated with the use of the bicycle saddles. An overview will be presented on how the problem is evaluated by looking at pressure on the genital area and clinical tests of sexual health of both men and women. No-nose saddles may alleviate the problem for recreational cyclists but can they be used by competitive cyclists? In a recent article in WebMD, Irwin Goldstein, MD, director of San Diego Sexual Medicine said "I don't think you can be a competitive rider and be protected from erectile dysfunction. They need that nose between their thighs, and that produces nerve and artery compression." Is the competitive cyclist doomed or is there a scientific solution which protects the cyclist without affecting his or her performance?

A Bike Geometry Esperanto – Dan Empfield
First road bikes with compact geometry, and especially tri bikes with seat angles here, there and everywhere, place bike builders and fitters in the position of having no meaningful nomenclature todifferentiate between the sizes of bikes. "Stack" and "Reach" are the most accurate, and in fact the only, dimensions anyone needs to know when determining whether a bike fits. I'll describe these terms and how they work, and present case studies that show how bike makers might build various bikes with the same stack and reach -- that is, bikes that fit precisely the same -- yet handle very differently for those sophisticated enough to understand what it is they want in a bike. This will surely be an entertaining presentation!

Wind tunnel testing without a wind tunnel: Using a power meter to determine aerodynamic drag – Jim Martin
Power can be used to effectively evaluate cycling aerodynamics and refine position. Dr. Martin will discuss how it’s done in this presentation.

Steady-State Training and Racing - Joe Friel
Joe Friel will examine the markers of effective and efficient steady-state performance including negative-positive splitting, power variability index and power-pulse drift.

Cycling biomechanics of physically challenged athletes – Robert Gregor
During this presentation you will learn how physically challenged athletes, in particular those with lowerlimb prostheses, perform the cycling task. Dr. Gregor will discuss his recent research as well as recommendations for working with the physically challenged population.

What is 'Form', how to predict when you'll have 'Form' using power based training and the Performance Manager – Hunter Allen
The idea that athletes come and off of 'form' has been around a long time. What exactly is it? Where does it come from? Can you make it happen exactly when you want it to? Power based training has really helped to solve many of these questions and more. Using a power meter to track your Training Load can not only help you to optimize your training, but also help in creating your peak fitness. Hunter Allen, co-developer of TrainingPeaks WKO+ software, and co-author of "Training and Racing with a Power Meter", will teach you how to better create the best 'form' of your life and when you want it.

Low back pain in cyclists: from static to dynamic – Jay Dicharry
LBP is one of the top clinical Dx in physical therapy and a real part of much of our athletic population. Understanding the clinical correlation of special tests to low back pain is an important part of evaluation and treatment, however this presentation will focus more on the dynamic control nature of low back pain, or rather the changes of proprioception and lumbar control as it relates to low back pain progression. Elements of core lumbar stabilization (as supported by Hodges) will be reviewed to reinforce the theoretical nature of chronic strain on tissue. Basic screening tests will be introduced to help identify key factors that will impact a specific individual's bike position. This will follow with an integrated treatment approach to re-educate muscular stabilization patterns into off the bike work, and more importantly into on the bike exercises to re-enforce these patterns into technique. The goal is to be able to decrease the cumulative stress on tissue to enable pain free cycling for health and performance.


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