Comment on: “The Effectiveness of Resisted Sled Training (RST) for Sprint Performance: A Systematic Review and Meta-analysis”
- 209 Downloads
We read with great interest the systematic review and meta-analysis by Alcaraz et al. , which aimed out to analyse the effects of resisted sled training (RST) loading and training status on sprint performance. We have several concerns that pertain to the operational basis of the review as well as to a flawed narrative around the applicability of RST (and resisted sprinting in general) to practice. Our primary aim here is to provide readers with additional context on which to base their decisions around assessment and selection of loading parameters for RST.
First of all, the need for an updated review and meta-analysis is never clearly justified by the authors. In fact, only 2 years prior a systematic review  was published citing only two fewer studies. Where relevant, the authors separate study interventions into ‘arbitrary’ categories of percentage of body-mass (%BM) loading parameters (i.e. < 20% BM [N = 12] and ≥ 20% BM [N = 3]). Of the analysed studies, 77%...
Compliance with Ethical Standards
No funding was received for this letter that may have affected study design, data collection, analysis or interpretation of data, writing of this manuscript, or the decision to submit for publication.
Conflict of interest
Matt R. Cross, Pierre Samozino, Scott R. Brown, Johan Lahti, Pedro Jimenez-Reyes and Jean-Benoit Morin declare that they have no conflicts of interest that are directly relevant to the content of this letter.
- 20.Cross MR, Lahti J, Brown SR, Chedati M, Jimenez-Reyes P, Samozino P, et al. Training at maximal power in resisted sprinting: optimal load determination methodology and pilot results in team sport athletes. PLoS One. 2018;13(4):e0195477. https://doi.org/10.1371/journal.pone.0195477.CrossRefGoogle Scholar
- 21.James DV, Wood DM, Maberly TC, Croix MDS. Optimized versus corrected peak power during friction-braked cycle ergometry in males and females. J Biomech. 2007;25(8):859–67.Google Scholar
- 24.Petrakos G, Tynan NC, Vallely-Farrell AM, Kiely C, Boudhar A, Egan B. Reliability of the maximal resisted sprint load test and relationships with performance measures and anthropometric profile in female field sport athletes. J Strength Cond Res. 2017. https://doi.org/10.1519/JSC.0000000000002228.Google Scholar
- 25.Martinez-Valencia MA, Gonzalez-Rave JM, Santos-Garcia DJ, Alcaraz Ramon PE, Navarro-Valdivielso F. Interrelationships between different loads in resisted sprints, half-squat 1 RM and kinematic variables in trained athletes. Eur J Sport Sci. 2014;14(Suppl 1):S18–24. https://doi.org/10.1080/17461391.2011.638935.CrossRefGoogle Scholar