Research

The effect of the bend on technique and performance during maximal effort sprinting


Reference:

Churchill, S. M., Salo, A. I. T. and Trewartha, G., 2015. The effect of the bend on technique and performance during maximal effort sprinting. Sports Biomechanics, 14 (1), pp. 106-121.

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    Official URL:

    http://dx.doi.org/10.1080/14763141.2015.1024717

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    Abstract

    This study investigated changes in performance and technique that occur during maximal effort bend sprinting compared with straight-line sprinting under typical outdoor track conditions. Utilising a repeated measures design, three-dimensional video analysis was conducted on seven male sprinters in both conditions (bend radius: 37.72 m). Mean race velocity decreased from 9.86 to 9.39 m/s for the left step (p = 0.008) and from 9.80 to 9.33 m/s for the right step (p = 0.004) on the bend compared with the straight, a 4.7% decrease for both steps. This was mainly due to a 0.11 Hz (p = 0.022) decrease in step frequency for the left step and a 0.10 m (p = 0.005) reduction in race step length for the right step. The left hip was 4.0° (p = 0.049) more adducted at touchdown on the bend than the straight. Furthermore, the bend elicited significant differences between left and right steps in a number of variables including ground contact time, touchdown distance and hip flexion/extension and abduction/adduction angles. The results indicate that the roles of the left and right steps may be functionally different during bend sprinting. This specificity should be considered when designing training programmes.

    Details

    Item Type Articles
    CreatorsChurchill, S. M., Salo, A. I. T. and Trewartha, G.
    DOI10.1080/14763141.2015.1024717
    Related URLs
    URLURL Type
    http://www.scopus.com/inward/record.url?scp=84928930024&partnerID=8YFLogxKUNSPECIFIED
    Uncontrolled Keywords200 m race,curve,lean,three-dimensional kinematics,track and field
    DepartmentsFaculty of Humanities & Social Sciences > Health
    Publisher StatementChurchill_et_al_bend_vs_straight_for_PURE.pdf: The Version of Record of this manuscript has been published and is available in Sports Biomechanics 2015 http://www.tandfonline.com/10.1080/14763141.2015.1024717
    RefereedYes
    StatusPublished
    ID Code44780

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