Does the use of a memory foam mattress affect time-dependent positional drift during treatment?

Analysis of the Impact of Memory foam Mattress Use on Intrafractional Setup Error

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT1030260102

Enrollment

Registered

2026-05-01

Start date

2026-05-01

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

Healthy person

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The inclusion criteria are individuals who, based on self report at the time of obtaining informed consent, do not experience physical discomfort when maintaining a supine position due to any disease or condition. As this study is a non-invasive study involving healthy volunteers, submission of a physicians medical certificate is not required.

Exclusion criteria

Exclusion criteria: Individuals who do not consent to participate in this study, or who withdraw their consent to participate in this study

Design outcomes

Primary

Measure	Time frame
Significant differences in the magnitude of surface positional displacement within the region of interest depending on the use of a memory foam mattress	—

Secondary

Measure	Time frame
Correlation between height, body weight, BMI, and age and the magnitude of surface positional displacement within the region of interest	—

Contacts

Public ContactYuki Murakami

The Cancer Institute Hospital of JFCR

yuki.murakami@jfcr.or.jp+81-3-3520-0111

Outcome results