دورية أكاديمية

Effect of a Hexagonal Barbell on the Mechanical Demand of Deadlift Performance

التفاصيل البيبلوغرافية
العنوان: Effect of a Hexagonal Barbell on the Mechanical Demand of Deadlift Performance
المؤلفون: Jason Lake, Freddie Duncan, Matt Jackson, David Naworynsky
المصدر: Sports, Vol 5, Iss 4, p 82 (2017)
بيانات النشر: MDPI AG, 2017.
سنة النشر: 2017
المجموعة: LCC:Sports
مصطلحات موضوعية: strength and conditioning, linear position transducer, biomechanical analysis, resistance exercise, Sports, GV557-1198.995
الوصف: This study compared typical mechanical variables of interest obtained directly from barbell motion during deadlift performance with a conventional (CBD) and a hexagonal barbell (HBD). Eleven men, proficient with both deadlift variations, volunteered to participate in the study (age: 20.3 ± 0.6 years; height: 175.5 ± 8.5 m; mass: 88.7 ± 19.0 kg; CBD 1RM: 183 ± 22 kg; HBD 1RM: 194 ± 20 kg). During the first session, CBD and HBD 1RM was assessed; during the second session, they performed 3 sets of 1 CBD repetition with 90% 1RM; and in session three, they repeated this process with the HBD. Barbell displacement was recorded at 1000 Hz and mechanical parameters derived from this. Significantly heavier loads were lifted during HBD (6%, p = 0.003). There were no significant differences between barbell displacement (p = 0.216). However, HBD was performed significantly faster (15%, p = 0.012), HBD load was accelerated for significantly longer (36%, p = 0.004), and significantly larger mean forces underpinned this (6%, p < 0.001), with more work having been performed (7%, p < 0.001) at greater power outputs (28%, p < 0.001). The results of this study showed that heavier HBD loads can be lifted through the same range of motion faster, and that this load is accelerated for significantly longer. The strategies used to achieve these differences could have a significant effect on training outcomes.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2075-4663
Relation: https://www.mdpi.com/2075-4663/5/4/82; https://doaj.org/toc/2075-4663
DOI: 10.3390/sports5040082
URL الوصول: https://doaj.org/article/b9ee1fb61dc844d88d81b8046e1e0542
رقم الأكسشن: edsdoj.b9ee1fb61dc844d88d81b8046e1e0542
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20754663
DOI:10.3390/sports5040082