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THE EFFECT OF DIFFERENT

POSITIONS OF THE BICYCLE SHOE

CLEAT ON LEG MUSCLE ACTIVITY

Guido Vroemen

Paul Trégouët

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Introduction

Guido Vroemen

Sportsphysician

The Netherlands

Amerongen/Amersfoort

Workfield:

Team Physician NTB

Scientist NTC

AA Cycling / Leontien.nl

Triathlon Trainer

Headcoach LD Triathlon

WWW.SPORTARTS.ORG

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Introduction

Specialisation:

Sports Performance Analysis

Biomechanics/Motion analysis

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The Shoes in Question

Cleat Position

 ± No effect on cycling

economy (Van Sickle &

Hull 2007) ± Faster run times with

midsole cleat position

(Paton & Jardine 2011)

Question: Does thecleat placement affect

muscle activation?

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Methods

Computer Model Subject Testing

Muscles

 ± Gluteus Maximus

 ± Rectus Femoris

 ± Vastus Lateralis

 ± Biceps Femoris

 ± Gastrocnemius

 ± Soleus

EMG Technique

 ± Ag-AgCl electrodes

 ± 1000 Hz

band-pass & notch filtered

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Results: Muscle Timing

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Results: Upper Leg

 

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Results: Lower Leg

 

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Conclusions

Applicable to Triathlon?

Better running

performance ?

Limitations

Other bikeposition

Worse cycling

performance ?

 

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Future Directions

Pedal Force Measurement

Pedal Force Angle Measurement

VO2 economy

 

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Thank you !

LinkedIn GroupTriathlon Science

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