Head movement properties during voluntary rapid jaw movement in humans

Torisu, Tetsurou; Yamabe, Yoshihisa; Hashimoto, Nobuyuki; Yoshimatsu, Tadashi; Fujii, Hiroyuki

doi:10.1046/j.1365-2842.2001.00782.x

Cited by 22 publications

(15 citation statements)

References 34 publications

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“…Functional coupling occurs between the upper and lower limbs during daily ambulatory movements such as walking, running and swimming (see, for example, DEFIBAUGH (1964), DONKER et al (2001), WANNIER et al (2001) andZEHR andHARIDAS (2003)). In the maxillofacial areas, functional coupling also occurs between the jaw and head during jaw opening and closing (TORISU et al, 2001;YAMABE et al, 1999;ZAFAR, 2000;ZAFAR et al, 2000) and has been suggested to occur between the head and trunk (MIYAOKA et al, 2004;YAMABE et al, 1999), but functional coupling needs to be evaluated quantitatively.…”

Section: Discussionmentioning

confidence: 99%

“…Motor activities that have been recorded with accelerometers include not only daily ambulatory movements, such as walking and running (BoUTEN et al, 1997;FLAVEL et al, 2002;GILBERT et al, 1984;MAKIKAWA et al, 2001;MURAKAMI and MAKIKAWA, 1997;TULEN et al, 2000;WESTERTERP, 1999), but also much smaller movements in maxillofacial areas, such as jaw opening and closing (TORISU et al, 2001;YAMABE et al, 1999;ZAFAR, 2000;ZAFAR et al, 2000). The present study was designed to characterise head movements together with trunk drift recorded with accelerometers in unrestrained subjects.…”

Section: Introductionmentioning

confidence: 99%

“…For example, the upper limbs co-operate closely with the lower limbs during walking, running and swimming DONKER et al, 2001;WANNIER et al, 2001;ZEHR and HARIDAS, 2003). Functional coupling is also recognised between the jaw and head during chewing (TORISU et al, 2001;YAMABE et al, 1999;ZAFAR, 2000;ZAFAR et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of head movements coupled with trunk drift in healthy subjects

Miyaoka¹,

Hirano

Ashida

et al. 2005

Med. Biol. Eng. Comput.

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Accelerometers were used to measure sequential head tilt and trunk drift in 14 healthy young subjects while they performed three kinds of head task. First, maximum inclination angles in anterior, posterior, right and left directions were measured to estimate cervical ranges of motion for flexion-extension and lateral bending. The inclination angles measured (61.2 degrees on average for flexion, 51.7 degrees for extension, 42.7 degrees for right bending and 43.9 degrees for left bending) were consistent with previous findings. Secondly, cross-correlation analysis was applied to evaluate the degree of functional coupling between the head and trunk during flexion-extension and lateral bending. Significantly higher correlation coefficients were found between head tilt and trunk drift when these movements were in the same (iso-) directional condition than in a different (allo-) directional condition. The coupled trunk drift in flexion-extension for the iso-directional condition (10.3 degrees on average) was much larger than for the allodirectional condition (2.3 degrees). Finally, head turning was recorded as oval traces in a biaxial plane. In both clockwise and counter-clockwise head turning conditions, the maximum inclination angles of the traces were larger in the anterior-posterior direction (59.8 degrees anterior and 58.2 degrees posterior, in the clockwise condition, and 47.4 degrees and 47.4 degrees in the counter-clockwise condition) than in the right-left direction (36.3 degrees right and 39.0 degrees left, in the clockwise condition, and 40.5 degrees and 36.7 degrees in the counter-clockwise condition), and the angles in the four directions were almost equal to flexion-extension and lateral bending. The characteristics of the traces recorded and a possible application of the present recording system are discussed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of head movements coupled with trunk drift in healthy subjects

Miyaoka¹,

Hirano

Ashida

et al. 2005

Med. Biol. Eng. Comput.

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“…Relationship between stomatognathic-and head-neck systems Functional or physiological significance of the coupling between the stomatognathic system and the head-neck system has been frequently reported (Hellström et al, 2000;Zeredo et al, 2002;Eriksson et al, 1998;Torisu et al, 2001, Koolstra and Eijden, 2004). Dessem and Luo (1999) observed a neural projection from masticatory-muscle spindle afferents to the cervical spinal cord in rats by combining retrograde and intracellular neural labeling.…”

Section: The Emg Inhibition Is Followed By An Excitatory Periodmentioning

confidence: 99%

Modulation of neck muscle activity induced by intra-oral stimulation in humans

Torisu¹,

Tanaka²,

Murata³

et al. 2014

Clinical Neurophysiology

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* The effect of intra-oral electrical stimulation on the dorsal neck muscle activity was investigated in healthy volunteers.* The electromyographic (EMG) activity was reduced around 50 ms after the painful intra-oral electrical stimulation on average 80 % compared to baseline level in all subjects.* Local anesthesia of the stimulus site resulted in smaller inhibition of the dorsal neck EMG activities and disappearance of the painful sensation evoked by the stimulation.-2 - AbstractObjective: To investigate the effect of painful electrical stimuli applied to intra-oral tissues around the teeth on the neck muscle activity in healthy humans.Methods: Electromyographic (EMG) responses of the dorsal neck muscles evoked by intra-oral electrical stimulation were recorded before and after local anesthesia to the stimulus site in 17 healthy volunteers.Results: Inhibition of dorsal neck muscle EMG activities on average 80% compared to baseline level was observed with a latency around 50 ms after the electrical stimulation before anesthesia, and the EMG activity inhibition decreased after anesthesia of the intra-oral stimulus site. The perceived intensity of the electrical stimuli as scored on a visual analogue scale (VAS) was 6.1 ± 0.4 cm before anesthesia and 1.5 ± 0.2 cm after anesthesia.Conclusion: Intra-oral stimulation can inhibit neck muscle activity. This modulation might be attributed mainly to nociceptive afferent nerves however, non-nociceptive fibers could also be responsible.Significance: Intra-oral information including nociceptive activity can inhibit neck muscle activity. From a clinical viewpoint, the present findings demonstrate the neural connectivity between the trigeminal region and the cervical region raising the possibility that orofacial pain conditions could influence head, neck and shoulder activity.-3 -

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“…Accelerometers have been used to measure a wide range of physiological characteristics [3][4][5][6][7], with emphasis on motor activities [8][9][10][11][12], such as walking and running [5,6,[13][14][15][16][17][18], as well as on some studies of small movements, such as those in the temporomandibular region, mainly related to jaw opening and closing movements [19][20][21], in the characterization of respiratory disorders, such as apneas [3], [22,23], in the study of human body impact and vibration [24,25], its characterization posture [26,27], and movements performed during sleep [28,29].…”

Section: Basic Concepts On Accelerometrymentioning

confidence: 99%

Accelerometry for the motion analysis of the lateral plane of the human body during gait

Côrrea

Balbinot

2011

Health Technol.

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The measurement of a particular limb in the human body is an important task in many applications. Human behavior understanding typically involves human body posture analysis or estimation, as well as the generated corresponding gestures. This behavioral characterization makes it possible to analyze, interpret and animate human actions and, therefore, enables us to use some experimental methodologies. The present aims to contribute to this field by presenting the development of an experimental measurement system for human gait using accelerometry (an accelerometer network distributed on the body). When the subject walks, the system captures and processes the events and determines the angles of the limb. For results assessment, a virtual body model is presented in real-time motion, with data being stored in a database for future evaluations and analyses. The system proposed in this paper showed an average error of 3.1°, has low cost, high accuracy and is suitable for a wide range of applications.

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Head movement properties during voluntary rapid jaw movement in humans

Cited by 22 publications

References 34 publications

Analysis of head movements coupled with trunk drift in healthy subjects

Analysis of head movements coupled with trunk drift in healthy subjects

Modulation of neck muscle activity induced by intra-oral stimulation in humans

Accelerometry for the motion analysis of the lateral plane of the human body during gait

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