Zupan Michael F, Bullinger Dyana L, Buffington Brenda, Koch Caroline, Parker Samantha, Fragleasso Steve, Fogg Taylor, Rasmussen-Woerner Shay
Human Performance Lab, United States Air Force Academy, 2169 Fieldhouse Dr, USAF Academy, CO 80840.
Health & Wellness Innovation in Healthcare College of Nursing, The Ohio State University, 1585 Neil Avenue, Columbus, HO 43210.
Mil Med. 2018 Mar 1;183(suppl_1):510-515. doi: 10.1093/milmed/usx155.
The purpose of this study is to evaluate physiological responses associated with exercise using two different mouthpieces compared with not using a mouthpiece. Improved performance while using the PX3 Bite Regulator (PX3) may significantly reduce the risk of concussions by allowing an athlete to better prepare, react, absorb, and/or avoid impact completely compared with the restricted breathing or mandibular instability that occurs when using mouthguards. Twenty-three subjects completed a battery of five physiological tests; the 1.5-mile run, sit and reach, anaerobic endurance, leg press, and bench press. Each test battery was completed under three conditions: wearing a PX3, wearing a mouthguard, or no mouthpiece respectfully. The PX3 resulted in significantly faster 1.5-mile run times (667.4 ± 9.4 vs. 684.9 ± 9.2 vs. 679 ± 7.9 s, p ≤ 0.05) and significantly longer anaerobic endurance runs (311 ± 23 vs. 283 ± 18 vs. 286 ± 18yds, p ≤ 0.05) compared with the mouthguard and no mouthpiece. The leg press lifts (51.8 ± 4.1 vs. 46.0 ± 4.3, p ≤ 0.05) while wearing the PX3 were significantly greater than when wearing a mouthguard. There were improvements, but no significant differences for sit and reach (16.8 ± 0.8 vs. 15.9 ± 0.8 vs. 16.4 ± 0.8 in., p = 0.73) and bench press (17.7 ± 1.8 vs. 17.2 ± 1.6 vs. 17.2 ± 1.7 lifts, p = 0.94). The increased performance with the PX3 could be a result of better jaw alignment and/or decreased resistance to airflow.
本研究的目的是评估使用两种不同的咬嘴与不使用咬嘴相比，与运动相关的生理反应。与使用护齿器时出现的呼吸受限或下颌不稳定相比，使用PX3咬嘴调节器（PX3）时表现的改善可能会显著降低脑震荡风险，因为它能让运动员更好地准备、反应、吸收和/或完全避免撞击。23名受试者完成了一系列五项生理测试：1.5英里跑、坐位体前屈、无氧耐力、腿举和卧推。每个测试组在三种条件下完成：分别佩戴PX3、佩戴护齿器或不使用咬嘴。与护齿器和不使用咬嘴相比，使用PX3时1.5英里跑的时间显著更快（667.4±9.4秒对684.9±9.2秒对679±7.9秒，p≤0.05），无氧耐力跑的距离显著更长（311±23码对283±18码对286±18码，p≤0.05）。佩戴PX3时的腿举次数（51.8±4.1次对46.0±4.3次，p≤0.05）显著多于佩戴护齿器时。坐位体前屈（16.8±0.8英寸对15.9±0.8英寸对16.4±0.8英寸，p = 0.73）和卧推（17.7±1.8次对17.2±1.6次对17.2±1.7次，p = 0.94）有改善，但无显著差异。使用PX3时表现的提高可能是由于更好的颌骨对齐和/或气流阻力降低。
