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A New Index to Evaluate Running Coordination Based on Notational Analysis

2023; Bursa Uludağ University; Linguagem: Inglês

10.52082/jssm.2023.790

1303-2968

Jesús Martínez-Sobrino, José A. Navia, Juan del Campo-Vecino, Pedro Jiménez‐Reyes, Santiago Veiga-Fernández,

Sports injuries and prevention

The aim of this study was 1) to define a new index to describe running coordination, named % of coordination, and 2) to examine whether it could represent an order parameter in relation to running velocity. Twelve international middle-distance athletes (six males and six females) performed three trials at easy, 5000 m pace and sprint velocities while filmed from a lateral view at 240 Hz. Notational analysis of six lower-limb key events corresponding to touchdown, mid-stance and flight phases was performed with high values of intra- (maximum standard deviation = 7 ms) and inter-operator (maximum systematic bias = 6 ms) reliability. Running velocity manipulations resulted in substantial and progressive increases in stride length, stride frequency (all p's < 0.001) and % of coordination (p < 0.001; η²