Vol. 3, Issue 2, Part A (2021)

Purpose: The study aims to investigate the differences between the five-nail and eight-nail track spike running conditions of sprinters, providing insights into the potential effects of spike configuration on competitive performance.
Design/Methodology/Approach: Thirty-one (n = 31) male sprinters, aged 17 to 25 years, who had participated in state or inter-collegiate level competitions, were purposively selected as subjects from the eastern districts of Haryana State, India. The following parameters were measured under two running conditions (five-nail and eight-nail track spikes): Acceleration ability - 30m run test; Speed - 50m run test; Speed endurance - 100 m run test; Leg strength - Standing broad jump; Stride frequency - High knee action and back kick test. 
To calculate the mean differences between the two running conditions, the mean, standard deviation (SD), and t-ratio tests were conducted.
Findings: A statistically significant mean difference was observed in acceleration ability, speed endurance, and backward stride frequency between the two running conditions. However, there were no significant differences in speed, explosive leg strength, and forward stride frequency between the two conditions.
Conclusion: The study concludes that sprinters performed better in acceleration ability and speed endurance while using eight-nail track spikes compared to five-nail track spikes. Conversely, athletes demonstrated higher backward stride frequencies with five-nail track spikes than with eight-nail track spikes.
Originality/Value: This study provides a unique perspective on the use of five-nail and eight-nail track spikes in practice and competition. It offers an innovative contribution by exploring how the number of spike nails affects performance in the acceleration zone and stride frequency.