Hexbar to straightbar comparison for deadlift

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    Hexbar to straightbar comparison for deadlift


    Ima training for my senior year of football. Squat 395 bench 265 and deadlift hexbar is 495. I have only straightbar once or twice. What is it's advantages and disadvantages
    http://anabolicminds.com/forum/training-forum/198788-highschool-athlete-thread.html


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    A few articles on AM worth note:

    AnabolicMinds.com Forum - Vary your Deadlift and Maximize Results for the Posterior Chain and Quads
    AnabolicMinds.com Forum - Trap Bar Deadlifts <-- flawed article, but some good info on there
    AnabolicMinds.com Forum - The Contreras Files: Volume III <-- basically the best article on the subject, repetition of article 1 and gregg's link but more in depth analysis of the paper to better form your opinion of which one to use (if it must be an either or scenario)

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    A biomechanical analysis of straight and hexagonal barbell deadlifts using submaximal loads.

    Source

    School of Health Sciences, Robert Gordon University, Aberdeen, United Kingdom.

    Abstract

    The purpose of the investigation was to compare the kinematics and kinetics of the deadlift performed with 2 distinct barbells across a range of submaximal loads. Nineteen male powerlifters performed the deadlift with a conventional straight barbell and a hexagonal barbell that allowed the lifter to stand within its frame. Subjects performed trials at maximum speed with loads of 10, 20, 30, 40, 50, 60, 70, and 80% of their predetermined 1-repetition maximum (1RM). Inverse dynamics and spatial tracking of the external resistance were used to quantify kinematic and kinetic variables. Subjects were able to lift a heavier 1RM load in the hexagonal barbell deadlift (HBD) than the straight barbell deadlift (SBD) (265 &#177; 41 kg vs. 245 &#177; 39 kg, p &lt; 0.05). The design of the hexagonal barbell significantly altered the resistance moment at the joints analyzed (p &lt; 0.05), resulting in lower peak moments at the lumbar spine, hip, and ankle (p &lt; 0.05) and an increased peak moment at the knee (p &lt; 0.05). Maximum peak power values of 4,388 &#177; 713 and 4,872 &#177; 636 W were obtained for the SBD and HBD, respectively (p &lt; 0.05). Across the submaximal loads, significantly greater peak force, peak velocity and peak power values were produced during the HBD compared to during the SBD (p &lt; 0.05). The results demonstrate that the choice of barbell used to perform the deadlift has a significant effect on a range of kinematic and kinetic variables. The enhanced mechanical stimulus obtained with the hexagonal barbell suggests that in general the HBD is a more effective exercise than the SBD.

    PMID: 21659894
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