The Estimation of Circadian Rhythm Using Smart Wear. - Hazuki Masuda; Shima Okada; Naruhiro Shiozawa; Masaaki Makikawa; Daisuke Goto (EMBC, 2020)

Circadian Rhythm Estimation Using Electrocardiogram. - Hazuki Masuda; Shima Okada; Naruhiro Shiozawa (LifeTech, 2020)

Changes in the Heart Rate During Sleep With Menstrual Cycle Under Free-Living Conditions. - Hazuki Masuda; Shima Okada; Takahide Tanaka; Naruhiro Shiozawa; Yusuke Sakaue; Masanobu Manno (GCCE, 2022)

Evaluation for Biorhythm of Japanese University Students During COVID-19 Pandemic Using Wearable Device. - Hazuki Masuda; Koki Nakauchi; Tianyi Wang 002; Shima Okada; Masaaki Makikawa (ICCE, 2022)

Does In-Bed Airflow to the Feet Improve Postural Balance After Waking?: Aiming to Reduce Fatigue. - Hazuki Masuda; Shima Okada; Masanobu Manno; Aoki Taizo; Hiroshi Maruyama; Shuzhen Zhou (GCCE, 2024)

Estimation of Comfort or Discomfort State During Sleep Using Lower Limb Movement Features. - Shuzhen Zhou; Hazuki Masuda; Kazutaka Yamamoto; Kenta Fuke; Shima Okada; Yusuke Sakaue; Aoki Taizo; Hiroshi Maruyama (ICCE, 2025)

Machine learning model for menstrual cycle phase classification and ovulation day detection based on sleeping heart rate under free-living conditions. - Hazuki Masuda; Shima Okada; Naruhiro Shiozawa; Yusuke Sakaue; Masanobu Manno; Masaaki Makikawa; Tadao Isaka (Comput. Biol. Medicine, 2025)