Results 271 to 280 of about 10,495,398 (335)

Reference values for the phase angle of the electrical bioimpedance: Systematic review and meta-analysis involving more than 250,000 subjects.

Clinical Nutrition, 2020
BACKGROUND & AIMS The bioimpedence phase angle has been considered as a predictor for morbidity and mortality in different clinical situations, although reference values from a large healthy population are lacking.
R. Mattiello, Marina Azambuja Amaral, Eduardo Mundstock, P. Ziegelmann   +3 more
semanticscholar   +3 more sources

Association between phase angle from bioelectrical impedance analysis and level of physical activity: Systematic review and meta-analysis.

Clinical Nutrition, 2019
OBJECTIVE To evaluate the relationship between physical activity and phase angle. DESIGN Systematic Review and Meta-analysis. DATA SOURCES Electronic searches of MEDLINE (via PUBMED), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL ...
Eduardo Mundstock, Marina Azambuja Amaral, Rafael Reimann Baptista, E. Sarria, Rejane Rosaria Grecco Dos Santos, Adriano Detoni Filho, C. A. S. Rodrigues, G. Forte, Lucía Castro, A. Padoin, R. Stein, Lisiane Marçal Pérez, P. Ziegelmann, R. Mattiello   +13 more
semanticscholar   +3 more sources

Phase angle is associated with sarcopenic obesity in post-stroke patients.

Clinical Nutrition, 2023
BACKGROUND & AIMS Evidence is limited concerning the association between bioimpedance analysis-derived phase angle and sarcopenic obesity. This study examined this association in patients who underwent convalescent rehabilitation after stroke.
Y. Yoshimura, H. Wakabayashi, F. Nagano, A. Matsumoto, S. Shimazu, A. Shiraishi, Y. Kido, T. Bise, Kota Hori, K. Yoneda   +9 more
semanticscholar   +1 more source

Association between BIA-derived Phase Angle and Sarcopenia and Improvement in Activities of Daily Living and Dysphagia in Patients undergoing Post-Stroke Rehabilitation

The Journal of Nutrition, Health & Aging, 2022
To investigate the predictive value of the BIA-derived phase angle with respect to the functional prognosis and baseline sarcopenia in patients undergoing post-stroke rehabilitation. Retrospective cohort study.
T. Bise, Y. Yoshimura, H. Wakabayashi, F. Nagano, Y. Kido, S. Shimazu, A. Shiraishi, A. Matsumoto   +7 more
semanticscholar   +1 more source

Exploring the potential role of phase angle as a marker of oxidative stress: A narrative review.

Nutrition (Burbank, Los Angeles County, Calif.), 2021
Chronic conditions including non-communicable diseases have become increasingly prevalent in the past decade. Proinflammatory cytokines are associated with the development of several pathologies, their prognoses, and their associated mortality.
B. R. da Silva, M. C. Gonzalez, E. Cereda, C. Prado   +3 more
semanticscholar   +1 more source

Phase Angle as an Indicator of Baseline Nutritional Status and Sarcopenia in Acute Stroke.

Journal of Stroke & Cerebrovascular Diseases, 2021
OBJECTIVES This study aimed to investigate whether phase angle is an indicator of malnutrition and sarcopenia in acute-phase stroke patients. MATERIALS AND METHODS We conducted a retrospective observational study of stroke patients in a single acute ...
Yoko Sato, Y. Yoshimura, T. Abe
semanticscholar   +1 more source

Gains, Phases and Angles

IFAC Proceedings Volumes, 1984
Abstract Any interactive computer-aided design technique for multivariable feedback systems is critically dependent on the deployment of an appropriate set of indicators with Which to assess stability, performance and robustness. Appropriate generalizations of the classical feedback concepts of gain and phase are developed for this purpose.
Hung, YS, Macfarlane, AGJ
openaire   +2 more sources

Geometric quantum phase and angles

Physical Review D, 1988
The geometric phase in quantum mechanics is formulated for charged particles in a gauge-invariant, geometric manner. It is then extended to an evolution resulting from a sequence of measurements as in the work of Pancharatnam and Aharonov and Vardi. Its close connection to the Feynman formulation of quantum mechanics is pointed out.
, Anandan, , Aharonov
openaire   +2 more sources

Correlation research of phase angle variation and coating performance by means of Pearson’s correlation coefficient

Progress in Organic Coatings, 2020
The impedance characteristic and degradation process of two epoxy coatings in 3.5 % NaCl solution and seawater environment were studied by using electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM) and infrared spectroscopy ...
Tingrui Fu, Xiaobo Tang, Zekai Cai, Y. Zuo, Yuming Tang, Xuhui Zhao   +5 more
semanticscholar   +1 more source