Evolution of the Hurdle-Unit Kinematic Parameters in the 60 m Indoor Hurdle Race

Abstract

The aims of this study were to compare the five hurdle-unit split times from the deterministic model with the hurdle-to-hurdle model and with the official time, to compare the step kinematics of each hurdle-unit intervals, and to relate these variables to their respective hurdle-unit split times. The temporal and spatial parameters of the 60 m hurdles race were calculated during the 44th Spanish and 12th IAAF World Indoor Championships (men: n = 59; women: n = 51). The hurdle-unit split times from the deterministic model showed a high correlation (r = 0.99; p < 0.001) with the split times of the hurdle-to-hurdle model and faster split times were related to shorter step and flight times in hurdle steps for both genders. At the first hurdle, male athletes tended to increase their flight and contact times while the tendency of female athletes was to decrease their contact and flight times. In addition, at the first hurdle, both genders presented shorter take-off distance, shorter landing distance, and greater step width than in the remaining hurdles of the race. Therefore, coaches should implement training programs that have an impact on these key variables according to the specific demands of each hurdle-unit phase and gender.

Relationships between Strength and Step Frequency with Fatigue Index in Repeated Sprint Ability

“…The sprint times were measured using electronic photocells (Microgate, Bolzano, Italy), which were adjusted according to the height of the players and were placed at 0, 10, 20, and 30 m. Each sprint was initiated from a standing position with their foot 1 m behind the first timing gate. One fixed video camera, EX-ZR800 (Casio Computer Co., Tokio, Japan), located in a lateral view and operating at 60 Hz (shutter speed: 1/1000, 1920×1080 px), recorded the 30 m, similar to previous studies [ 24 , 25 ]. The step frequency (SF = number of steps/time of the number of steps) and step length (SL = sprint distance/sprint time/step frequency) were determined using a video analysis of the test.…”

New predictive model of the touchdown times in a high level 110 m hurdles

“…Firstly, we did not consider the case of hurdlers who hit the hurdles. Hitting the hurdles sometimes happens in the 110 m hurdles race [14], and has been noted to be associated with interval running performance [11,28,29]. Further investigation of considering hitting hurdles appears to be warranted.…”

“…Spatiotemporal variables have been recognized as important determinants of race performances in sprint and hurdle events [8][9][10][11] and also as modifiable parameters through training sessions [9]. In the hurdle events, times from the start signal to the instants of the leading leg landing after clearing the 1st to 10th hurdles (touchdown time) are typical parameters.…”

Applied Biomechanics: Sport Performance and Injury Prevention

“…It is always interesting to find information about a sport such as skiing; in this case, the published article carried out a prospective study over four years to find risk factors for musculoskeletal injuries [11]. Again, there is a study that uses 2D movement analysis applied to the 60-meter hurdles in athletics, analyzing runners during an indoor mute championship [12]. Finally, we highlight a study on female rugby players, relating the acute effect of match-play to the strength of the player [13] and research on a group of subjects from different sports on the hamstring/quadriceps torque ratio, pelvic posture, and its relationship with symphysis pubis pain [14].…”