Wang He, Bradshaw Hannah, VonGunten Ben, Andamasaris John, Burns Emma, Ashton Caroline, Dickin Clark
Biomechanics Laboratory (HP 311B), Health and Physical Activity Building, School of Kinesiology, Ball State University, Muncie, IN 47306, USA.
Muscles. 2025 Mar 12;4(1):7. doi: 10.3390/muscles4010007.
Barbell (BB) and dumbbell (DB) devices are commonly used during a bench press to develop the muscles of the chest, shoulders, and upper arms. Recently, a complete upper body bar (CUBB) was designed to train the muscles of the forearm by allowing for pronation and supination while providing the same traditional training for the rest of the upper body. The purpose of this study was to investigate the effectiveness of the CUBB relating to the EMG activity of the forearm during a bench press.
A total of 21 healthy college-aged men volunteered for this study. EMG sensors were placed on the anterior deltoid (AD), pectoralis major (PEC), triceps brachii (TRI), pronator teres (PRO), and supinator (SUP). The participants went through a bench press test in a series of three different randomized conditions: the DB, the BB, and the CUBB. Resistance was set at 30% of body weight. A repeated-measures ANOVA was used to analyze the normalized EMG data (alpha = 0.05).
For the forearm muscles, the CUBB exhibited 41% and 37% higher PRO activation than the DB and BB, respectively. In addition, the CUBB exhibited 67% and 30% more SUP activation than the BB and DB, respectively. For the shoulder and chest muscles (AD and PEC), no significant differences were found among the three conditions.
Bench pressing with a CUBB can engage more upper body muscles and offer individuals additional training benefits.
杠铃（BB）和哑铃（DB）器械常用于卧推训练，以锻炼胸部、肩部和上臂肌肉。最近，一种完整的上身杠铃（CUBB）被设计出来，通过允许旋前和旋后动作来训练前臂肌肉，同时为上身其他部位提供同样的传统训练。本研究的目的是调查CUBB在卧推过程中与前臂肌电图（EMG）活动相关的有效性。
共有21名健康的大学适龄男性自愿参与本研究。肌电图传感器放置在前三角肌（AD）、胸大肌（PEC）、肱三头肌（TRI）、旋前圆肌（PRO）和旋后肌（SUP）上。参与者在三种不同的随机条件下进行卧推测试：DB、BB和CUBB。阻力设定为体重的30%。采用重复测量方差分析来分析标准化的肌电图数据（α = 0.05）。
对于前臂肌肉，CUBB的PRO激活分别比DB和BB高41%和37%。此外，CUBB的SUP激活分别比BB和DB多67%和30%。对于肩部和胸部肌肉（AD和PEC），三种条件之间未发现显著差异。
使用CUBB进行卧推可以使更多的上身肌肉参与其中，并为个人提供额外的训练益处。
