Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Ken-ichi Yamakoshi"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-11 (2022)
Abstract The flow-mediated dilation (FMD) test is commonly utilized and is the only technique for the assessment of vascular endothelial cell function. With this test, the augmentation of a brachial artery diameter following reactive hyperemia is mea
Externí odkaz:
https://doaj.org/article/72812c98b55741c9aff475b4352c627b
Publikováno v:
PeerJ, Vol 9, p e11479 (2021)
Background Although cuff-sphygmomanometry is used worldwide in medical and healthcare fields, it is a fact that the use of an occlusive cuff to obtain blood pressure (BP) is troublesome and inconvenient. There have therefore been on-going efforts to
Externí odkaz:
https://doaj.org/article/aae4b57de8e54f8fb16821e5de59d1d4
Publikováno v:
Journal of Biomechanical Science and Engineering, Vol 4, Iss 3, Pp 443-455 (2009)
Hip protectors can reduce the incidence of hip fractures. However, low user acceptance and compliance in use remain a major obstacle in the effective use of hip protectors, due to its discomfort and extra effort needed to wear it, etc. A leak-allowed
Externí odkaz:
https://doaj.org/article/3ce1fa120c774968a2570c75a0dbcc99
Autor:
Takehiro Yamakoshi, Jihyoung Lee, Kenta Matsumura, Yasuhiro Yamakoshi, Peter Rolfe, Daiki Kiyohara, Ken-ichi Yamakoshi
Publikováno v:
PLoS ONE, Vol 10, Iss 12, p e0143506 (2015)
The aim of this study was to compare conventional photoplethysmography (PPG) in a finger with PPG using an integrating sphere (ISPPG) to enhance scattered light collection. Two representative wavelengths were used; 1160 nm, a window through the absor
Externí odkaz:
https://doaj.org/article/d95d0ee56232459aa8434f3bb1bc2af7
Publikováno v:
Medical & Biological Engineering & Computing. 59:1585-1596
Noninvasive and convenient measurement of vascular stiffness is of considerable importance for early detection and treatment of arteriosclerosis. Volume elastic modulus ( $${E}_{{v}}$$ ) is one of representative measures reflecting effective vascular
Autor:
Mitsuhiro Ogawa, Masamichi Nogawa, Ikuto Suzuki, Kimihiro Seino, Hisashi Naito, Ken-ichi Yamakoshi, Shinobu Tanaka
Publikováno v:
Medical & Biological Engineering & Computing. 58:67-74
Presently, there is no convenient method to measure 24-h urinary Na excretion, which is an important index of daily Na intake, and 24-h urine collection involves a complex process. However, the Na-to-creatinine ratio (NCR) in spot urine has the poten
Publikováno v:
PeerJ, Vol 9, p e11479 (2021)
PeerJ
PeerJ
Background Although cuff-sphygmomanometry is used worldwide in medical and healthcare fields, it is a fact that the use of an occlusive cuff to obtain blood pressure (BP) is troublesome and inconvenient. There have therefore been on-going efforts to
Autor:
Hisashi Naito, Kimihiro Seino, Masamichi Nogawa, Shinobu Tanaka, Ikuto Suzuki, Mitsuhiro Ogawa, Ken-ichi Yamakoshi
Publikováno v:
Advanced Biomedical Engineering. 7:72-81
Publikováno v:
IEEE Transactions on Biomedical Engineering. 64:1131-1137
Objective : The so-called volume-compensation method (VCM) allows noninvasive instantaneous arterial blood pressure (BP) measurement in human fingers. The VCM is mostly carried out with photoplethysmography (PPG) to detect arterial volume pulsations.
Autor:
Naoto Tanaka, Takehiro Yamakoshi, Hiroaki Sakai, Kosuke Motoi, Yasuhiro Yamakoshi, Ken-ichi Yamakoshi
Publikováno v:
BioMedical Engineering
Background Taking a bath sometimes poses a risk for subjects with chronic cardiopulmonary disorders, due to the thermal effect and water pressure on his/her body. The ECG measurement would be helpful for the early recognition of abnormal cardiac beat