Kiliaridis S, Tzakis M G, Carlsson G E
Department of Orthodontics, University of Göteborg, Sweden.
Am J Orthod Dentofacial Orthop. 1995 Apr;107(4):372-8. doi: 10.1016/s0889-5406(95)70089-7.
The purpose of the study was to evaluate the effects of chewing training on the strength and resistance to fatigue of the masticatory muscles. Twenty-five healthy adults were divided into an experimental group (7 men, 10 women) and a control group (4 men, 4 women). The experimental group chewed a special hard chewing gum one hour daily for 28 days. Maximal bite force and endurance were measured. The maximal bite force already showed a significant increase in the experimental group by the middle of the experimental period (p < 0.05), reached the highest values by the end of the training period (p < 0.001), and also remained at high levels 2 weeks after (p < 0.001). Subjects with weak initial maximal bite force values showed the highest increase in their strength after training (r = -0.66, p < 0.01). This type of training did not influence the endurance time during maximal clenching or the reduction in this endurance time after a dynamic fatigue test. No significant differences were found between the maximal bite force before and that after the fatigue test under either untrained or trained conditions. In the control group no significant differences were found between the recording sessions. In conclusion, 4 weeks training with a hard chewing gum seems to influence the functional capacity of the masticatory muscles and increase their strength.
本研究的目的是评估咀嚼训练对咀嚼肌力量和抗疲劳能力的影响。25名健康成年人被分为实验组（7名男性，10名女性）和对照组（4名男性，4名女性）。实验组每天咀嚼一种特殊的硬口香糖1小时，持续28天。测量最大咬合力和耐力。在实验期中期，实验组的最大咬合力已显著增加（p < 0.05），在训练期结束时达到最高值（p < 0.001），并且在训练后2周仍保持在较高水平（p < 0.001）。初始最大咬合力值较弱的受试者在训练后力量增加最多（r = -0.66，p < 0.01）。这种训练对最大紧咬时的耐力时间或动态疲劳试验后该耐力时间的减少没有影响。在未训练或训练条件下，疲劳试验前后的最大咬合力之间均未发现显著差异。对照组在各记录时段之间未发现显著差异。总之，用硬口香糖进行4周训练似乎会影响咀嚼肌的功能能力并增强其力量。
