Effect of Starting Posture on Three-Dimensional Jaw and Head Movement
Objectives: The effect of body posture on movement of the jaw and head has not yet been clearly established. The relationship between jaw and head movement has implications for conditions such as temporomandibular joint disorders which can be associated with neck pain. The purpose of this quasi-expe...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Stilus Optimus
2022-03-01
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| Series: | eJournal of Oral Maxillofacial Research |
| Subjects: | |
| Online Access: | https://www.ejomr.org/JOMR/archives/2022/1/e4/v13n1e4ht.htm |
| _version_ | 1818059606649208832 |
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| author | Janey Prodoehl Patrick Thomas Joseph J. Krzak Timothy Hanke Joseph Tojanic James Thomas |
| author_facet | Janey Prodoehl Patrick Thomas Joseph J. Krzak Timothy Hanke Joseph Tojanic James Thomas |
| author_sort | Janey Prodoehl |
| collection | DOAJ |
| description | Objectives: The effect of body posture on movement of the jaw and head has not yet been clearly established. The relationship between jaw and head movement has implications for conditions such as temporomandibular joint disorders which can be associated with neck pain. The purpose of this quasi-experimental study was to examine the effect of starting posture on three-dimensional movement of the jaw and head, and to examine the relationship between head and jaw movement during mouth opening.
Material and Methods: Fourteen healthy participants performed jaw opening to comfortable and maximal amounts from three starting body postures (neutral, slumped, upright) while three-dimensional movement of the head, jaw, and trunk was tracked. Separate repeated measures analyses of variance analyses examined the effect of posture on jaw and head rotation and translation, and Pearson product moment correlations examined the relationship between jaw opening and head rotation.
Results: Body posture significantly influenced maximal opening but not comfortable opening (P < 0.0033). There was a positive relationship between head extension and maximum opening in an upright posture (r = 0.74, P = 0.006), and head extension and comfortable opening in neutral and upright postures (r = 0.75 to 0.93, P < 0.0033), although there was no relationship between head extension and jaw opening in a slumped posture when opening comfortably.
Conclusions: Posture can affect three-dimensional movement of the jaw when opening. Negating the normal head extension that occurs with mouth opening when in a slumped posture has implications for the development of temporomandibular and neck problems in some individuals. |
| first_indexed | 2024-12-10T13:19:12Z |
| format | Article |
| id | doaj.art-89c6377295494529a8d7db642802f2a2 |
| institution | Directory Open Access Journal |
| issn | 2029-283X |
| language | English |
| last_indexed | 2024-12-10T13:19:12Z |
| publishDate | 2022-03-01 |
| publisher | Stilus Optimus |
| record_format | Article |
| series | eJournal of Oral Maxillofacial Research |
| spelling | doaj.art-89c6377295494529a8d7db642802f2a22022-12-22T01:47:25ZengStilus OptimuseJournal of Oral Maxillofacial Research2029-283X2022-03-01131e410.5037/jomr.2022.13104Effect of Starting Posture on Three-Dimensional Jaw and Head MovementJaney ProdoehlPatrick ThomasJoseph J. KrzakTimothy HankeJoseph TojanicJames ThomasObjectives: The effect of body posture on movement of the jaw and head has not yet been clearly established. The relationship between jaw and head movement has implications for conditions such as temporomandibular joint disorders which can be associated with neck pain. The purpose of this quasi-experimental study was to examine the effect of starting posture on three-dimensional movement of the jaw and head, and to examine the relationship between head and jaw movement during mouth opening. Material and Methods: Fourteen healthy participants performed jaw opening to comfortable and maximal amounts from three starting body postures (neutral, slumped, upright) while three-dimensional movement of the head, jaw, and trunk was tracked. Separate repeated measures analyses of variance analyses examined the effect of posture on jaw and head rotation and translation, and Pearson product moment correlations examined the relationship between jaw opening and head rotation. Results: Body posture significantly influenced maximal opening but not comfortable opening (P < 0.0033). There was a positive relationship between head extension and maximum opening in an upright posture (r = 0.74, P = 0.006), and head extension and comfortable opening in neutral and upright postures (r = 0.75 to 0.93, P < 0.0033), although there was no relationship between head extension and jaw opening in a slumped posture when opening comfortably. Conclusions: Posture can affect three-dimensional movement of the jaw when opening. Negating the normal head extension that occurs with mouth opening when in a slumped posture has implications for the development of temporomandibular and neck problems in some individuals.https://www.ejomr.org/JOMR/archives/2022/1/e4/v13n1e4ht.htmmandiblemovementkinematicsnecktemporomandibular jointposture |
| spellingShingle | Janey Prodoehl Patrick Thomas Joseph J. Krzak Timothy Hanke Joseph Tojanic James Thomas Effect of Starting Posture on Three-Dimensional Jaw and Head Movement eJournal of Oral Maxillofacial Research mandible movement kinematics neck temporomandibular joint posture |
| title | Effect of Starting Posture on Three-Dimensional Jaw and Head Movement |
| title_full | Effect of Starting Posture on Three-Dimensional Jaw and Head Movement |
| title_fullStr | Effect of Starting Posture on Three-Dimensional Jaw and Head Movement |
| title_full_unstemmed | Effect of Starting Posture on Three-Dimensional Jaw and Head Movement |
| title_short | Effect of Starting Posture on Three-Dimensional Jaw and Head Movement |
| title_sort | effect of starting posture on three dimensional jaw and head movement |
| topic | mandible movement kinematics neck temporomandibular joint posture |
| url | https://www.ejomr.org/JOMR/archives/2022/1/e4/v13n1e4ht.htm |
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