Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics
| dc.contributor.advisor | Swart, Jeroen | |
| dc.contributor.advisor | Fisher, Julia | |
| dc.contributor.author | Holliday, Wendy | |
| dc.date.accessioned | 2020-02-12T13:23:06Z | |
| dc.date.available | 2020-02-12T13:23:06Z | |
| dc.date.issued | 2019 | |
| dc.date.updated | 2020-02-12T13:22:51Z | |
| dc.description.abstract | Kinematic measurements conducted during bike set-ups utilise either static or dynamic measures. There is currently limited data on reliability of static and dynamic measures nor consensus on which is the optimal method. The aim of the study was to assess the difference between static and dynamic measures of the ankle, knee, hip, shoulder and elbow. Nineteen subjects performed three separate trials of a 10min duration at a fixed workload (70% of peak power output). Static measures were taken with a standard goniometer (GM), an inclinometer (IM) and dynamic three dimensional motion capture (3DMC) using an eight camera motion capture system. Static and dynamic joint angles were compared over the three trials to assess repeatability of the measurements and differences between static and dynamic values. There was a positive correlation between GM and IM measures for all joints. Only the knee, shoulder and elbow were positively correlated between GM and 3DMC, and IM and 3DMC. Although all three instruments were reliable, 3D motion analysis utilised different landmarks for most joints and produced different means. Changes in knee flexion angle from static to dynamic are attributable to changes in the positioning of the foot. Controlling for this factor, the differences are negated. It was demonstrated that 3DMC is not interchangeable with GM and IM, and it is recommended that 3DMC develop independent reference values for bicycle configuration. | |
| dc.identifier.apacitation | Holliday, W. (2019). <i>Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics</i>. (). ,Faculty of Health Sciences ,Department of Human Biology. Retrieved from http://hdl.handle.net/11427/31052 | en_ZA |
| dc.identifier.chicagocitation | Holliday, Wendy. <i>"Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics."</i> ., ,Faculty of Health Sciences ,Department of Human Biology, 2019. http://hdl.handle.net/11427/31052 | en_ZA |
| dc.identifier.citation | Holliday, W. 2019. Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics. | en_ZA |
| dc.identifier.ris | TY - Thesis / Dissertation AU - Holliday, Wendy AB - Kinematic measurements conducted during bike set-ups utilise either static or dynamic measures. There is currently limited data on reliability of static and dynamic measures nor consensus on which is the optimal method. The aim of the study was to assess the difference between static and dynamic measures of the ankle, knee, hip, shoulder and elbow. Nineteen subjects performed three separate trials of a 10min duration at a fixed workload (70% of peak power output). Static measures were taken with a standard goniometer (GM), an inclinometer (IM) and dynamic three dimensional motion capture (3DMC) using an eight camera motion capture system. Static and dynamic joint angles were compared over the three trials to assess repeatability of the measurements and differences between static and dynamic values. There was a positive correlation between GM and IM measures for all joints. Only the knee, shoulder and elbow were positively correlated between GM and 3DMC, and IM and 3DMC. Although all three instruments were reliable, 3D motion analysis utilised different landmarks for most joints and produced different means. Changes in knee flexion angle from static to dynamic are attributable to changes in the positioning of the foot. Controlling for this factor, the differences are negated. It was demonstrated that 3DMC is not interchangeable with GM and IM, and it is recommended that 3DMC develop independent reference values for bicycle configuration. DA - 2019 DB - OpenUCT DP - University of Cape Town KW - Bicycle KW - bike fitting KW - static KW - dynamic KW - 3D analysis KW - kinematics LK - https://open.uct.ac.za PY - 2019 T1 - Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics TI - Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics UR - http://hdl.handle.net/11427/31052 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/31052 | |
| dc.identifier.vancouvercitation | Holliday W. Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics. []. ,Faculty of Health Sciences ,Department of Human Biology, 2019 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/31052 | en_ZA |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Department of Human Biology | |
| dc.publisher.faculty | Faculty of Health Sciences | |
| dc.subject | Bicycle | |
| dc.subject | bike fitting | |
| dc.subject | static | |
| dc.subject | dynamic | |
| dc.subject | 3D analysis | |
| dc.subject | kinematics | |
| dc.title | Intrinsic factors, performance and dynamic kinematics in optimisation of cycling biomechanics | |
| dc.type | Doctoral Thesis | |
| dc.type.qualificationlevel | Doctoral | |
| dc.type.qualificationname | PhD |