Microdosing Sprint Distribution as an Alternative to Achieve Better Sprint Performance in Field Hockey Players

Over six weeks, distributing sprint training in smaller, more frequent doses (microdosing) was compared to traditional twice-weekly sessions in twenty male professional field hockey players. Both groups completed the same total sprint volume. Sprint performance and horizontal force-velocity profiles were measured before and after the intervention. No significant differences in sprint times or mechanical variables were found between the groups after training. However, within the microdosing group, significant improvements occurred in maximal theoretical horizontal force, maximal power, and sprint times from 5 to 25 meters, driven by increased stride length and decreased stride frequency at maximal velocity. Microdosing training load appears an effective and efficient sprint training method for team sports.

Study at a glance

Abstract

Introduction: The implementation of optimal sprint training volume is a relevant component of team sport performance. This study aimed to compare the efficiency and effectiveness of two different configurations of within-season training load distribution on sprint performance over 6 weeks. Methods: Twenty male professional FH players participated in the study. Players were conveniently assigned to two groups: the experimental group (MG; n = 11; applying the microdosing training methodology) and the control group (TG; n = 9; traditional training, with players being selected by the national team). Sprint performance was evaluated through 20 m sprint time (T20) m and horizontal force–velocity profile (HFVP) tests before (Pre) and after (Post) intervention. Both measurements were separated by a period of 6 weeks. The specific sprint training program was performed for each group (for vs. two weekly sessions for MG and TG, respectively) attempting to influence the full spectrum of the F-V relationship. Results: Conditional demands analysis (matches and training sessions) showed no significant differences between the groups during the intervention period (p > 0.05). No significant between-group differences were found at Pre or Post for any sprint-related performance (p > 0.05). Nevertheless, intra-group analysis revealed significant differences in F0, Pmax, RFmean at 10 m and every achieved time for distances ranging from 5 to 25 m for MG (p < 0.05). Such changes in mechanical capabilities and sprint performance were characterized by an increase in stride length and a decrease in stride frequency during the maximal velocity phase (p < 0.05). Conclusion: Implementing strategies such as microdosed training load distribution appears to be an effective and efficient alternative for sprint training in team sports such as hockey.