A Randomized Trial to Consider the Effect of Romanian Deadlift Exercise on the development of Lumbar Extension Strength

James Fisher, Bruce-Low, Dave Smith

Research output: Contribution to journalArticle

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. Design Comparison of pre- and post-test data for Romanian deadlift 1RM, and lumbar extension torque between and within groups. Participants Male trained subjects (n = 36; 24.9 ± 6.5 years; 178.5 ± 5.2 cm; 81.6 ± 10.0 kg). Main outcome measures 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.
Original languageEnglish
Pages (from-to)139-145
JournalPhysical Therapy in Sport
Volume14
Issue number3
DOIs
Publication statusPublished - 2012

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Torque
Articular Range of Motion
Analysis of Variance
Joints
Control Groups

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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. Design Comparison of pre- and post-test data for Romanian deadlift 1RM, and lumbar extension torque between and within groups. Participants Male trained subjects (n = 36; 24.9 ± 6.5 years; 178.5 ± 5.2 cm; 81.6 ± 10.0 kg). Main outcome measures 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.",
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A Randomized Trial to Consider the Effect of Romanian Deadlift Exercise on the development of Lumbar Extension Strength. / Fisher, James; Bruce-Low; Smith, Dave.

In: Physical Therapy in Sport, Vol. 14, No. 3, 2012, p. 139-145.

Research output: Contribution to journalArticle

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N2 - 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. Design Comparison of pre- and post-test data for Romanian deadlift 1RM, and lumbar extension torque between and within groups. Participants Male trained subjects (n = 36; 24.9 ± 6.5 years; 178.5 ± 5.2 cm; 81.6 ± 10.0 kg). Main outcome measures 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.

AB - 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. Design Comparison of pre- and post-test data for Romanian deadlift 1RM, and lumbar extension torque between and within groups. Participants Male trained subjects (n = 36; 24.9 ± 6.5 years; 178.5 ± 5.2 cm; 81.6 ± 10.0 kg). Main outcome measures 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.

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