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Kyuichi Niizeki
Observed names:
K. NIIZEKI,
K. Niizeki,
Kyuichi NIIZEKI
Institution:
Yamagata University
Observed institutions:
Yamagata University,
Kobe Design University,
University of California System,
University of California San Diego,
Muroran Institute of Technology,
Yamagata Prefectural University of Health Sciences
show all 6
ORCID:
0000-0001-6958-5527
Observed ORCID:
0000-0001-6958-5527
OpenAlex ID:
A5069170200
Validity of pulse oximetry during maximal exercise in normoxia, hypoxia, and hyperoxia
2002
·
Yoshiki Yamaya
, Harm J. Bogaard
, et al.
·
Journal of Applied Physiology
·
115
Estimation of Melanin and Hemoglobin Using Spectral Reflectance Images Reconstructed from a Digital RGB Image by the Wiener Estimation Method
2013
·
Izumi Nishidate
, Takaaki Maeda
, et al.
·
Sensors
·
87
PDF
Noninvasive imaging of human skin hemodynamics using a digital red-green-blue camera
2011
·
Izumi Nishidate
, Noriyuki Tanaka
, et al.
·
Journal of Biomedical Optics
·
77
PDF
Interaction among cardiac, respiratory, and locomotor rhythms during cardiolocomotor synchronization
1993
·
K. Niizeki
, K. Kawahara
, et al.
·
Journal of Applied Physiology
·
74
Unconstrained cardiorespiratory and body movement monitoring system for home care
2005
·
K. Niizeki
, I. Nishidate
, et al.
·
Medical & Biological Engineering & Computing
·
65
β‐Adrenergic or parasympathetic inhibition, heart rate and cardiac output during normoxic and acute hypoxic exercise in humans
2003
·
Susan R. Hopkins
, Harm J. Bogaard
, et al.
·
The Journal of Physiology
·
61
Visualizing depth and thickness of a local blood region in skin tissue using diffuse reflectance images
2007
·
Izumi Nishidate
, Takaaki Maeda
, et al.
·
Journal of Biomedical Optics
·
43
PDF
Incoherent oscillations of respiratory sinus arrhythmia during acute mental stress in humans
2011
·
Kyuichi Niizeki
, Tadashi Saitoh
·
American Journal of Physiology-Heart and Circulatory Physiology
·
42
Visualizing of skin chromophore concentrations by use of RGB images
2008
·
Izumi Nishidate
, Kiyohiro Sasaoka
, et al.
·
Optics Letters
·
41
Role of the autonomic nervous system in the reduced maximal cardiac output at altitude
2002
·
Harm J. Bogaard
, Susan R. Hopkins
, et al.
·
Journal of Applied Physiology
·
38
Deep learning-based sleep stage classification with cardiorespiratory and body movement activities in individuals with suspected sleep disorders
2023
·
Seiichi Morokuma
, Toshinari Hayashi
, et al.
·
Scientific Reports
·
36
PDF
Non-contact imaging of peripheral hemodynamics during cognitive and psychological stressors
2020
·
Daniel McDuff
, Izumi Nishidate
, et al.
·
Scientific Reports
·
33
PDF
Cardiolocomotor phase synchronization during rhythmic exercise
2014
·
Kyuichi Niizeki
, Tadashi Saitoh
·
The Journal of Physical Fitness and Sports Medicine
·
31
PDF
Cardiac, Respiratory, and Locomotor Coordination during Walking in Humans
1996
·
Kyuichi Niizeki
, Koichi Kawahara
, et al.
·
Folia Primatologica
·
29
Noninvasive spectral imaging of skin chromophores based on multiple regression analysis aided by Monte Carlo simulation
2011
·
Izumi Nishidate
, Aditya Wiswadarma
, et al.
·
Optics Letters
·
28
Intramuscular pressure-induced inhibition of cardiac contraction: implications for cardiac-locomotor synchronization
2004
·
Kyuichi Niizeki
·
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
·
27
Association Between Phase Coupling of Respiratory Sinus Arrhythmia and Slow Wave Brain Activity During Sleep
2018
·
Kyuichi Niizeki
, Tadashi Saitoh
·
Frontiers in Physiology
·
23
PDF
Effects of optison® on pulmonary gas exchange and hemodynamics
2002
·
Yoshiki Yamaya
, Kyuichi Niizeki
, et al.
·
Ultrasound in Medicine & Biology
·
19
Phase-dependent heartbeat modulation by muscle contractions during dynamic handgrip in humans
1999
·
Kyuichi Niizeki
, Yoshimi Miyamoto
·
American Journal of Physiology-Heart and Circulatory Physiology
·
19
A comparison between cardiac output determined by impedance cardiography and the rebreathing method during exercise in man.
1989
·
Kyuichi NIIZEKI
, Yoshimi MIYAMOTO
, et al.
·
The Japanese Journal of Physiology
·
19
PDF
Prediction of ECG signals from ballistocardiography using deep learning for the unconstrained measurement of heartbeat intervals
2025
·
Seiichi Morokuma
, Tadashi Saitoh
, et al.
·
Scientific Reports
·
18
PDF
Respiratory Responses to Passive and Active Recovery from Exercise.
1997
·
Tatsuhisa TAKAHASHI
, Kyuichi NIIZEKI
, et al.
·
The Japanese Journal of Physiology
·
18
PDF
Diffusion coefficients of CO2 molecule and bicarbonate ion in hemoglobin solution measured by fluorescence technique.
1983
·
Katsuo UCHIDA
, Masaji MOCHIZUKI
, et al.
·
The Japanese Journal of Physiology
·
18
PDF
Simple and affordable imaging of multiple physiological parameters with RGB camera-based diffuse reflectance spectroscopy
2020
·
Izumi Nishidate
, Masashi Minakawa
, et al.
·
Biomedical Optics Express
·
17
Anaphylactoid Response to Optison and Its Effects on Pulmonary Function in Two Dogs
2004
·
Yoshiki YAMAYA
, Kyuichi NIIZEKI
, et al.
·
Journal of Veterinary Medical Science
·
17
PDF
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Works count:
117
Citation count:
1,239
H-index:
19
I10-index:
34
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