A study on the quantitative evaluation of breathing patterns and gait strategies during the 6-minute walk test in patients with interstitial lung disease.

A study on the quantitative evaluation of breathing patterns and gait strategies during the 6-minute walk test in patients with interstitial lung disease. - A study on the quantitative evaluation of breathing patterns and gait strategies during the 6-minute walk test in patients with interstitial lung disease.

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000055822

Enrollment

Registered

2024-10-14

Start date

2024-08-01

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

Interstitial lung disease, chronic obstructive pulmonary disease, bronchial asthma, bronchiectasi

Interventions

None listed

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: 1. Male patients aged 20 years or older 2. Patients who provide written consent to participate in this study 3. Inpatients or outpatients of Gunma University Hospital 4. Patients diagnosed with one of the following conditions: 1) Patients diagnosed with interstitial lung disease (ILD) 2) Patients diagnosed with chronic obstructive pulmonary disease (COPD) 3) Patients diagnosed with bronchial asthma 4) Patients diagnosed with bronchiectasis

Exclusion criteria

Exclusion criteria: 1. Those who have experienced acute exacerbation within 4 weeks prior to consent 2. Those with unstable cardiovascular disease 3. Those who require walking aids for ambulation 4. Those with orthopedic or neurological conditions that may affect the evaluation of exercise tolerance 5. Those using home oxygen therapy 6. Those unable to provide consent or understand explanations due to cognitive impairment or psychiatric symptoms 7. Those using a pacemaker or implantable defibrillator 8. Those unable to wear the devices used in the study

Design outcomes

Primary

Measure	Time frame
The primary endpoint of this study is to evaluate the correlation between composite acceleration (integrated from the XYZ axes) and respiratory rate, as well as oxygen saturation (SpO2). Specifically, the study aims to clarify how composite acceleration, which captures the overall magnitude and stability of movement during the 6-minute walk test, relates to respiratory function during exercise.	—

Secondary

Measure	Time frame
The secondary endpoints will involve comparisons with other respiratory diseases, such as COPD. This will allow for the analysis of differences between disease groups in terms of walking ability and respiratory function (average respiratory rate, IE ratio). Specifically, by comparing changes in gait patterns and respiratory parameters associated with each condition, the study aims to quantitatively evaluate disease-specific exercise limitations and respiratory dysfunction. The following items will be assessed: Walking ability 1. Changes in gyroscope data (XYZ axes) during walking 2. Magnetic field changesector Magnitude Unit (VMU) 3. Step count 4. Average stride length 5. Cadence Respiratory function during walking 1. IE ratio (Inhalation/Exhalation ratio) 2. Heart rate 3. Number of inhalations and exhalations	—

Measure

Time frame

The secondary endpoints will involve comparisons with other respiratory diseases, such as COPD. This will allow for the analysis of differences between disease groups in terms of walking ability and respiratory function (average respiratory rate, IE ratio). Specifically, by comparing changes in gait patterns and respiratory parameters associated with each condition, the study aims to quantitatively evaluate disease-specific exercise limitations and respiratory dysfunction. The following items will be assessed: Walking ability 1. Changes in gyroscope data (XYZ axes) during walking 2. Magnetic field changesector Magnitude Unit (VMU) 3. Step count 4. Average stride length 5. Cadence Respiratory function during walking 1. IE ratio (Inhalation/Exhalation ratio) 2. Heart rate 3. Number of inhalations and exhalations

—

Countries

Japan

Contacts

Public ContactTakeshi Hisada

Gunma University Graduate School of Health Sciences / Department of Respiratory Medicine and Allergy

hisadat@gunma-u.ac.jp027-220-8944

Outcome results