Effect of Spatial and Temporal Cues on Athletic Pacing in Schoolchildren.

• Autores: Camilla Chinnasamy, Dominic Micklewright, Alan St. Clair Gibson
• Localización: Medicine & Science in Sports & exercise: Official Journal of the American College of Sports Medicine, ISSN 0195-9131, Vol. 45, Nº. 2, 2013, págs. 395-402
• Idioma: inglés
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• Resumen

  • AB Purpose: To compare pacing and performance of schoolchildren between running tasks where the end point was defined in units of either distance or time. Methods: Thirty-eight schoolchildren (age = 12.6 +/- 0.5 yr, mass = 46.2 +/- 7.5 kg, stature = 150 +/- 7 cm) first performed a best-effort 750-m running task on a 150-m running track. The schoolchildren were split into two groups, matched for sex, age, and running performance, before completing the second running trial. One group repeated the 750-m running task (distance-distance group), whereas the other completed a running task to a time that had been matched to their previous 750-m performance (distance-time group). Pace was measured every 10% segment throughout each run. Results: No difference between trials in average running speed was found among the distance-distance group (13.64 +/- 1.59 vs 13.68 +/- 1.62 km[middle dot]h-1, P > 0.05); however, the distance-time group were slower during the time task compared with during the distance task (13.84 +/- 1.61 vs 13.37 +/- 1.57 km[middle dot]h-1, P < 0.005). There was no difference in pacing pattern between trials among the distance-distance group (P > 0.05), but the distance-time group exhibited a slower overall slower pace with no end spurt (P < 0.0001). During the time task, children looked at their watches more frequently the nearer they got to the end point ([rho] = 0.933, P < 0.0001). Conclusions: Schoolchildren find it easier to use spatial cues during a pacing task compared with temporal cues. Running pace in all trials followed a classic U-shaped pattern; however, lap-by-lap oscillations in pacing substrategies were also evident, which may be a psychological coping strategy.