Does a lumbar roll make a difference in muscle activity and posture during prolonged typing tasks in those with neck symptoms?: A Randomized Crossover Trial

Does a lumbar roll make a difference in muscle activity and posture during prolonged typing tasks in those with neck symptoms?: A Randomized Crossover Trial - Does a lumbar roll make a difference in muscle activity and posture during prolonged typing tasks in those with neck symptoms?: A Randomized Crossover Trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000049297

Enrollment

Registered

2022-10-24

Start date

2022-10-25

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

Those with neck symptoms

Interventions

60 min-taping tasks with a lumbar roll 60 min-taping tasks without a lumbar roll

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Students and staff of Saitama Prefectural University Those who have neck symptoms including Katakori for at least the last week and have a Neck Disability Index (NDI) of 16% or higher Those who have used computers at least two days a week for a total of at least two hours a week

Exclusion criteria

Exclusion criteria: Those with a history of whiplash or neck fracture or surgery Those who are unable to sit in the experimental environment for one hour continuously for any reason. Those who have difficulty in typing for any reason. Those who are unable to perform standard EMG pretreatment for any reason.

Design outcomes

Primary

Measure	Time frame
EMG Relative rest time of right splenius capitis, upper right trapezius, middle right trapezius, right sternocleidomastoid, right serratus anterior, right longissimus, and right pectoralis major muscles for 60 min	—

Secondary

Measure	Time frame
60-minute cranio-vertebral angle 60-minute cranio-cervical angle Horizontal angle between left and right scapula at 60 minutes Anterior-posterior pelvic tilt angle at 60 minutes Sagittal angle between the pelvic plane and T2 level at 60 minutes Symptom duration Location of symptoms before the task Pain intensity according to the P4 before the task Quality of life according to the EQ5D before the task Katakori Disability Index before the task An 11-point numerical rating scale for bothersomeness due to neck symptoms before the task 11-level neck symptom annoyance immediately after the task	—

Measure

Time frame

60-minute cranio-vertebral angle 60-minute cranio-cervical angle Horizontal angle between left and right scapula at 60 minutes Anterior-posterior pelvic tilt angle at 60 minutes Sagittal angle between the pelvic plane and T2 level at 60 minutes Symptom duration Location of symptoms before the task Pain intensity according to the P4 before the task Quality of life according to the EQ5D before the task Katakori Disability Index before the task An 11-point numerical rating scale for bothersomeness due to neck symptoms before the task 11-level neck symptom annoyance immediately after the task

—

Countries

Japan

Contacts

Public ContactHiroshi Takasaki

Saitama Prefectural University Physical Therapy

physical.therapy.takasaki@gmail.com0489734706

Outcome results

None listed

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