Relationship Between Non-curved, Non-motorized, Resistance Treadmill Sprinting and Ground Speeds in American Football Players
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Keywords
Running, Strength, Conditioning
Abstract
Introduction: The NFL has relied heavily on speed as an indicator of readiness and future success in American football. Recent trends in speed training include the utilization of non-curved, non-motorized, resistance treadmills. Minimal data currently exists examining the use of these treadmills. Therefore, non-curved, non-motorized, resistance treadmills have been hypothesized to correlate with grounded sprints. Methods: 17 male, American football players (26.06 ± 3.72 yr., 184.59 ± 7.95 cm, 101.88 ± 15.96 kg) sprinted at peak speeds during five different trials. Four trials consisted of non-curved, non-motorized treadmill sprints at different incline/resistance settings (i.e. 15RES8, 15RES5, 20RES3, 20RES1). One trial consisted of a 30-yard grounded sprint in which three different data points were recorded (i.e. 10YDSPLIT, 20YDSPLIT, 30YDSPLIT). Multiple correlation analyses examined relationships and significance was set at p< 0.05.
Results: A significant positive correlation (p< 0.05.) existed between 10YDSPLIT and 15RES8, 10YDSPLIT and 20RES3, 20YDSPLIT and 20RES3, 20YDSPLIT and 20RES1, and lastly 30YDSPLIT and 20RES3.
Conclusions: Moderate inclines at higher resistance settings relate to 9.14 m (10 yd) grounded sprints. Data also displayed steeper incline at lower resistance settings relate to grounded sprints through 27.43 m (30 yd).
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