Objective: The aim of this study was to evaluate the effect of random route multi-directional sprint training (MDST) compared to fixed route MDST on change-of-direction speed (CODS) and reactive agility (RA), and to investigate the correlation between CODS, RA and short-distance straight sprint speed (SDSS).

Method: A total of 19 collegiate tennis players from Beijing Sport University were randomly assigned to either the random route MDST group (RR group, = 9, age: 22.22 ± 2.22 years) or the fixed route MDST group (FR group, = 10, age: 21.90 ± 1.66 years). Both groups completed a progressive load intervention training for 3 weeks, three times a week. The RR group's random route, mirroring the distance and number of change-of-direction (COD) in the FR group's fixed route, was specifically designed. The spider run, T-drill, RA test and 5-m straight line sprint test were performed before and after the intervention.

Results: Both groups showed improved performance in the spider run ( < 0.05), T-drill ( < 0.01) and 5-m straight ( < 0.001) line sprint test after the intervention. Additionally, there was no significant difference in the improvement of CODS and SDSS between the two groups ( > 0.05). The RA of the RR and FR groups after the intervention was significantly higher than before intervention ( < 0.001), and RR group showed greater improvement in RA compared to the FR group. There was a moderate correlation between spider run and T-drill (r = 0.523), RA (r = 0.388), and no significant correlation between spider run and 5-m straight sprint ( > 0.05). T-drill was moderately correlated with RA (r = 0.347) and 5-m straight sprint (r = 0.321). RA was moderately correlated with 5-m straight sprint (r = 0.551).

Conclusion: Three-week multi-directional sprint training can effectively improve the change-of-direction speed, reactive agility and short-distance straight sprint speed of collegiate tennis players. And random route multi-directional sprint training has better effect on improving reactive agility.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11493021PMC
http://dx.doi.org/10.7717/peerj.18263DOI Listing

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