Technology Supporting the Para-athletes
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Wheelchair Ergometer
Allows athlewtes to bring their own wheel chairs Analyses the movement and power created during matches and training
Wheelchair athlete combination Customised, A, WC, Ergonomics
Customised for the athlete to allow for peak athlete perfromance for the given sport No two are different Athlete Wheelchair Configuration Ergonomics of Sports Wheelchair performance
Wheelchair athlete combination: Athlete
Physical Aerobic fitness, strength, power etc. Impairment Level of SCl etc. Skill
Wheelchair athlete combination: Wheelchair
Seat position, camber, wheel size etc. Vehicle mechanics Rolling resistance, air resistance, internal friction etc. Design Materials etc
Wheelchair athlete combination: Ergonomics of Sports Wheelchair Performance
Power Output Physiological Demand Propulsion Technique Force Application Muscular Activity User Perceptions
Marginal Gains
No stone is left unturned in pursuit of excellence and the approach is to use an evidence-base scientific approach, with best practice and know-how shared across other main-stream sports (if relevant) and Paralympic programmes These margins are finer and finer as athletes get faster and stronger
Process of design
Significant developments over time – Wheelchair configuration and design changes to better suit the athlete based on the sports
Examination seeing about equipment
Trial and error, subjective perception Done during tournaments to allow for more data to be collected – Working towards evidence based research Some Athletes keep tweaking the settings until it feels perfect Some may add straps for their legs or add a rest for their slightly functional leg Extremly expensive Bucket seat to allow for quick rotations Chairs which are narrow for easy turns Some never tweak their chairs which lead to it wearing down overtime and decrease performance
Field Measurement opportunites: Innovative technologies
Potential method that can help monitor performance
Field Measurement opportunites: GPS Systems
Provides info about distances covered, speeds, HR zones and time spent at the mentioned points
Field Measurement opportunites: Indoor tracking systems
measurement that track movements within the wheelchairs
Field Measurement opportunites: Data loggers
devices that log data within the wheelchairs
Inertial measurement Units
has a gyroscope and an accelerometer to show data of wheelchair movement
Inertial measurement Units: Pros and Cons
Advantages – Small – Lightweighted – Easily attached – No disruption athletes • Disadvantages – No power measurements
Wheelchair Field testings used
20m Sprint tests, Spider test, butterfly-sprint test and Illinois Test
Instrumented Measurement Units (IMU)
• Track wheelchair athletes on the field • More in-depth analysis – Velocities/accelerations – Rotational aspects • Force/Power measurements lacking
IMU Pros and Cons
Advantages - Power measurement - Push by push analysis Disadvantages - Bulky and heavy - Not easily attached
Lab Measurements for wheelchairs
Treadmill - Synchronous propulsion - Trunk movement involved Wheelchair ergometer - Own wheelchair - Left/right differences
Wheelchair ergometer/Treadmills
Force/Power production More detailed push characteristics Tracking individuals or a group Extend with 3D position registration or spirometer data