Joint kinetic determinants of starting block performance in athletic sprinting
Taylor & Francis
MetadataShow full item record
The aim of this study was to explore the relationships between lower limb joint kinetics, external force production and starting block performance (normalised average horizontal power, NAHP). Seventeen male sprinters (100 m PB, 10.67 ± 0.32 s) performed maximal block starts from instrumented starting blocks (1000 Hz) whilst 3D kinematics (250 Hz) were also recorded during the block phase. Ankle, knee and hip resultant joint moment and power were calculated at the rear and front leg using inverse dynamics. Average horizontal force applied to the front (r = 0.46) and rear (r = 0.44) block explained 86% of the variance in NAHP. At the joint level, many “very likely” to “almost certain” relationships (r = 0.57 to 0.83) were found between joint kinetic data and the magnitude of horizontal force applied to each block although stepwise multiple regression revealed that 55% of the variance in NAHP was accounted for by rear ankle moment, front hip moment and front knee power. The current study provides novel insight into starting block performance and the relationships between lower limb joint kinetic and external kinetic data that can help inform physical and technical training practices for this skill.
Journal of Sports Sciences;
Brazil, A., Exell, T., Wilson, C., Willwacher, S., Bezodis, I.N. and Irwin, G. (2018) 'Joint kinetic determinants of starting block performance in athletic sprinting', Journal of Sports Sciences, 36(14), pp.1656-1662
Article published in Journal of Sports Sciences available at https://doi.org/10.1080/02640414.2017.1409608
- Sport Research Groups 
Showing items related by title, author, subject and abstract.
Brazil, Adam; Exell, Timothy; Wilson, Cassie; Willwacher, Steffen; Bezodis, Ian; Irwin, Gareth (Taylor & Francis, 2016-08-17)The aim of this study was to examine lower limb joint kinetics during the block and first stance phases in athletic sprinting. Ten male sprinters (100 m PB, 10.50 ± 0.27 s) performed maximal sprint starts from blocks. ...
A biomechanical approach to evaluate overload and specificity characteristics within physical preparation exercises Brazil, Adam; Exell, Timothy; Wilson, Cassie; Irwin, Gareth (Taylor & Francis, 2020-04-07)An essential component of any physical preparation programme is the selection of training exercises to facilitate desired performance outcomes, with practitioners balancing the principles of sports training to inform ...
A biomechanical comparison of initial sprint acceleration performance and technique in an elite athlete with cerebral palsy and able-bodied sprinters Bezodis, Ian; Cowburn, James; Brazil, Adam; Richardson, Rhian; Wilson, Cassie; Exell, Timothy A.; Irwin, Gareth (Taylor & Francis, 2018-05-16)Cerebral palsy is known to generally limit range of motion and force producing capability during movement. It also limits sprint performance, but the exact mechanisms underpinning this are not well known. One elite male ...