Uptight responses between clenching and forearm raising with factors of visual feedback and maintenance effort in healthy young women: An experimental study on factorial design

BMC Oral Health

Research

Kelun Wang¹  Changsheng Chen²  Shaoxiong Guo³  Baoyong Li³  Yuan Zhang³  Lijuan Zhou⁴  Meiqing Wang⁵  Xianyu Zheng⁶ 

[1] Center for Sensory-Motor Interaction (SMI), Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Fredrik BajersVej 7 D3, 9220, Aalborg, Denmark;Department of Health Statistics, The Fourth Military Medical University, 710032, Xi’an, Shaanxi, China;Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, 710032, Xi’an, Shaanxi, China;Department of Orthodontics I, Hefei Stomatological Hospital, Clinical College of Stomatology, Anhui Medical University, 230001, Hefei, Anhui, China;Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, 710032, Xi’an, Shaanxi, China;Shanghai Key Laboratory of Craniomaxillofacial Development and Diseases, Fudan University, Shanghai, China;Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, 710032, Xi’an, Shaanxi, China;Stomatologic Hospital & College, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 230032, Hefei, China;

关键词: Psychological responses;    Biting force;    Jaw-closing muscle;    Biceps brachii muscle;    Electromyography;   

DOI  :  10.1186/s12903-023-02767-9

 received in 2022-06-10, accepted in 2023-01-25,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundTo achieve different central preset force levels requires various fine-tuning efforts and may elicit different uptight responses. The mandibular lever system has a distinct regularity in the fine-tuning function of the upper limbs. The purpose of the present study was to detect whether the uptight responses elicited from motivating clenching differ from those induced by motivating forearm raising at different force levels.MethodsTwenty-five healthy females were enrolled in this study. The target was low, medium, and maximum force levels with or without visual feedback and/or maintenance effort. Surface electromyographic (SEMG) activity was recorded from the bilateral anterior temporalis and masseter or left biceps brachii muscle (BicL), and the T-Scan III System synchronously recorded the sensitive force values. The uptight responses and task difficulties were recorded for occlusal and left forearm lifting tasks using a unique visual analogue scale.ResultsThe highest uptight response value was achieved at a low clenching force level with visual feedback requiring no maintenance effort but at a maximum forearm-raising force level with visual feedback and maintenance effort. The SEMG activities of both jaw-closing muscles and BicL were associated with the central preset force level (P < 0.001). However, the maintenance effort only increased the jaw-closing muscles’ SEMG activity at the maximal force level (P < 0.001).ConclusionsClenching at the central preset lower force level with visual feedback is prone to elicit a higher degree of uptight response. The constant need for a low-intensity bite can have a negative effect on an individual's mood.

【 授权许可】

CC BY   
© The Author(s) 2023

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