Posture measurement using a smartphone inclinometer application.

Reproducibility and validation of posture measurement methods using smartphone inclinometer applications. - Reliability of smartphone-based posture measurement methods.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000055938

Enrollment

Registered

2024-10-25

Start date

2023-07-01

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

No disease (for healthy subjects)

Interventions

Within a day, one examiner took two measurements with a smartphone in (1) the supinated position and (2) the elevated position of the upper limb, respectively, while the other subject took one measure

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Men and women with no physical disability were targeted.

Exclusion criteria

Exclusion criteria: Those experiencing pain in the lumbar or shoulder joint at the time of measurement. Or pain occurs before the measurement.

Design outcomes

Primary

Measure	Time frame
The short side of the smartphone is placed on the spinous processes of (1) th1/2, (2) th12/L1 and (3) L4/5. The thoracic kyphosis angle was defined as (1) + (2) and the lumbar lordosis angle as (2) + (3). To assess reproducibility, one of the examiners measured once, and a second measurement was taken four hours later. Another examiner also took a measurement at the second time. Measurements with a smartphone and an analogue level were carried out on a separate day.	—

Measure

Time frame

The short side of the smartphone is placed on the spinous processes of (1) th1/2, (2) th12/L1 and (3) L4/5. The thoracic kyphosis angle was defined as (1) + (2) and the lumbar lordosis angle as (2) + (3). To assess reproducibility, one of the examiners measured once, and a second measurement was taken four hours later. Another examiner also took a measurement at the second time. Measurements with a smartphone and an analogue level were carried out on a separate day.

—

Countries

Japan

Contacts

Public ContactHiroki Takayama

Hanna Central College of Rehabilitation Department of Physical Therapy

h.takayama@kuriokagakuen.ac.jp0743-78-8711

Outcome results

None listed

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