K. Doi

Distinction Method between Expiratory and Inspiratory Sounds Using Biological Sound Sensor

Shota Nakashima, T. Hirano, K. Matsunaga, 2021, The Proceedings of The 8th International Conference on Intelligent Systems and Image Processing 2021.

Orthogonality-Constrained CNMF-Based Noise Reduction with Reduced Degradation of Biological Sound

Shota Nakashima, T. Hirano, K. Matsunaga, 2021, Sensors.

A Novel Role of Growth Differentiation Factor (GDF)-15 in Overlap with Sedentary Lifestyle and Cognitive Risk in COPD

S. Uehara, T. Donishi, K. Suga, 2020, Journal of clinical medicine.

Computed Tomography Lung Density Analysis: An Imaging Biomarker Predicting Physical Inactivity in Chronic Obstructive Pulmonary Disease: A Pilot Study

M. Yano, K. Matsunaga, K. Oishi, 2023, Journal of clinical medicine.

Neural Network Approach to Investigating the Importance of Test Items for Predicting Physical Activity in Chronic Obstructive Pulmonary Disease

K. Matsunaga, Y. Murata, K. Doi, 2023, Journal of clinical medicine.

Impact of Frailty on Hippocampal Volume in Patients with Chronic Obstructive Pulmonary Disease

T. Donishi, K. Suga, K. Matsunaga, 2021, Biomedicines.

Kinetics of COVID-19 mRNA primary and booster vaccine-associated neutralizing activity against SARS-CoV-2 variants of concern in long-term care facility residents: a prospective longitudinal study in Japan

K. Matsunaga, K. Oishi, T. Kakugawa, 2023, Immunity & Ageing.

Diagnostic Utility of Specific Frailty Questionnaire: The Kihon Checklist for Hippocampal Atrophy in COPD

K. Oishi, Y. Yamaji, Y. Murata, 2024, Journal of clinical medicine.

Gender Difference in the Relationship between Extrapulmonary Factors and Reduced Lung Function in Early Adulthood

K. Oishi, K. Hamada, Y. Yamaji, 2024, Journal of clinical medicine.

A Novel Method for Identifying Frailty and Quantifying Muscle Strength Using the Six-Minute Walking Test

K. Doi, Tsunahiko Hirano, Kazuto Matsunaga, 2024, Sensors.