Effects of Different Inter-Set Rest Intervals during the Nordic Hamstring Exercise in Young Male Athletes

Benjamin Drury, Daniel Peacock, Jason Moran, Chris Cone, Rodrigo Ramirez-Campillo

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Abstract

Context: The Nordic hamstring exercise (NHE) is known to reduce hamstrings injury (HIS) risk in athletes. In order to optimise the NHE it is important to understand how acute resistance training variables influence its performance. Objective: To examine the effects of different inter- set rest intervals (ISRI) on force indices during performance of the NHE. Design: Crossover Study. Setting: Laboratory based. Patients or Participants: Ten (age = 20.7 ± 2.3 years; height = 179.4 ± 5.5 cm; body mass = 83.9 ± 12.4 kg) well-trained young male team-sport athletes. Intervention: Participants performed 2 x 6 repetitions of the NHE with either a SHORT (one- minute) or LONG (three-minute) ISRI. All sets were performed on the NordBord. Main Outcomes Measure(s): Peak force (N), average force (N), percent maintenance (%) and percent decline (%) were recorded for both dominant and non-dominant limbs as well as inter-limb force asymmetries (%) calculated. Results: Analyses revealed no statistically significant interactions or main effects (p > 0.05) between conditions and sets in all variables. However, analysis of individual repetitions showed significant reductions (p < 0.05, ES = 0.58-1.28) in peak force from repetition four onwards. Conclusions: Our findings suggest that a one-minute ISRI is sufficient to maintain force production qualities and inter-limb asymmetries between sets during the NHE in well-trained athletes. However, practitioners should be aware of the potentially high decrements in peak force production that may occur within the set.
Original languageEnglish
JournalJournal of Athletic Training
Early online date6 Jan 2021
DOIs
Publication statusPublished - 6 Jan 2021

Keywords

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Orthopedics and Sports Medicine
  • General Medicine
  • Resistance Training
  • Injury Prevention
  • Eccentric
  • Youth Sports

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