The relationship between neck stiffness and trunk, body posture, and oral behavior

The relationship between neck stiffness and trunk, body posture, and oral behavior - Neck stiffness and body posture & oral behavior

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000029971

Enrollment

Registered

2017-11-15

Start date

2017-11-14

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neck stiffness, tiredness, or pain

Interventions

Desk work under four different conditions

two different posture (condition 1: upright sitting, condition 2: Bad posture sitting) and biting (condition 1: non-contacting teeth, condition 2: clenching)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Faculty staff and students belonging to the University of Tokushima and their families and acquaintances

Exclusion criteria

Exclusion criteria: Those who have orthopedic diseases of the spine, spinal cord diseases, orthopedic diseases of the shoulder joints and other neurological diseases, those who show allergic reactions to the surface electrode, those who are pregnant, those using the cardiac pacemaker, those who are difficult to accomplish tasks due to have cognitive dysfunction

Design outcomes

Primary

Measure	Time frame
Trapetius muscle activity	—

Secondary

Measure	Time frame
Spinal alignment, Muscle hardness and pain threshold of trapetius and masseter muscle, Centroid mobility, Maximum bite force	—

Countries

Japan

Contacts

Public ContactYoshitaka Suzuki

Tokushima University Graduate School Department of Stmatognathic function and Occlusal Reconstruction

yosuzuki@tokushima-u.ac.jp0886337350

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026