title: A randomized trial to consider the effect of Romanian deadlift exercise on the development of lumbar extension strength.
abstract: OBJECTIVE
  To consider the efficacy of 10 weeks of Romanian deadlift (DL) training in increasing lumbar extension strength compared to isolated lumbar extension (LUMX) training.
  
  
  METHODS
  Comparison of pre- and post-test data for Romanian deadlift 1RM, and lumbar extension torque between and within groups.
  
  
  METHODS
  Male trained subjects (n = 36; (x¯±SD) 24.9 ± 6.5 years; 178.5 ± 5.2 cm; 81.6 ± 10.0 kg).
  
  
  METHODS
  Pre- and post-testing included a Romanian deadlift 1RM and isometric strength tests every 12° through full range of motion on the MedX lumbar extension machine (MedX, Ocala, FL).
  
  
  RESULTS
  Repeated measures analysis of variance (ANOVA) with Bonferroni adjustments revealed that 1RM Romanian deadlift significantly increased from pre- to post-test in the DL group (p < 0.008; 143.3 ± 23.4 kg to 166.3 ± 21.9 kg) and the LUMX group (p < 0.008; 135.8 ± 23.1 kg to 146.0 ± 25.5 kg). In contrast, tested functional torque (TFT) significantly increased at 6 out of 7 joint angles (p < 0.008) for the LUMX group only. The control group showed no significant differences pre- to post-test.
  
  
  CONCLUSIONS
  These data suggest that the Romanian deadlift does not enhance lumbar extension torque. However, performing specific isolated lumbar extension training appears to improve both lumbar extension torque and Romanian deadlift 1RM.
authors.affiliation: Department of Health, Exercise and Sport Science, Southampton Solent University, East Park Terrace, Southampton SO14 0YN, UK. james.fisher@solent.ac.uk
authors.forename: James
authors.initials: J
authors.lastname: Fisher
authors.forename: Stewart
authors.initials: S
authors.lastname: Bruce-Low
authors.forename: Dave
authors.initials: D
authors.lastname: Smith
mesh_terms: D005081:Exercise Therapy / Q000379:methods*; D006801:Humans; D017116:Low Back Pain / Q000534:rehabilitation*; D008297:Male; D053580:Muscle Strength / Q000502:physiology*; D016059:Range of Motion, Articular / Q000502:physiology; D019415:Torque; D016896:Treatment Outcome; D014891:Weight Lifting; D055815:Young Adult
keywords: Lower back; MedX; Strength training