Results 81 to 90 of about 257,333 (244)

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

Experimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner, Giovanni Vinetti, Giacomo Strapazzon, Hannes Gatterer   +3 more
wiley   +1 more source

Factors influencing heart rate variability in nurses following night shifts: a prospective observational clinical study

BMC Nursing
Background Heart rate variability (HRV) has been established as a key indicator of autonomic nervous system activity, reflecting both sympathetic and parasympathetic modulation.
Taihe Zhan, Ziying Zhang, Zhimin Shi, Hongyan Xie, Daogang Zha, Xiumei Wei   +5 more
doaj   +1 more source

RETROSPECTIVE EVALUATION OF THE FETUS AND NEWBORN ON THE BASIS OF INDICATORS OF FETAL HEMODYNAMICS AND TRANSCRANIAL CEREBRAL OXIMETRY

Медицинский вестник Юга России, 2013
Purpose: identify the correlation between antenatal evaluation of fetus and newborn according to cerebral fetal hemodynamic and transcranial cerebral oximetryMaterials and methods.
V. A. Kulakova, A. V. Orlov, M. G. Nekrasova   +2 more
doaj   +1 more source

Sex differences in dynamic cerebral autoregulation responses to resistance and endurance training in humans

Experimental Physiology, EarlyView.
Abstract Exercise maintains brain health and reduces the risk of cerebrovascular diseases, such as stroke and dementia. The benefits of different ‘modalities’ of exercise on male and female cerebral autoregulation are unclear. In this study, we compared adaptations in dynamic cerebral autoregulation (dCA) during spontaneous and forced oscillations in ...
Hannah J. Thomas, Channa E. Marsh, Leanne Lester, Louise H. Naylor, Kurt J. Smith, Daniel J. Green   +5 more
wiley   +1 more source

Evaluation of brain death using transcranial Doppler.

, 1989
Cerebral blood flow velocities in the middle cerebral arteries were measured using transcranial Doppler in 12 patients with conditions that ultimately resulted in brain death.
Sirotta, P, Newell, D W, Grady, M S, Winn, H R   +3 more
core   +1 more source

CARE‐ing for concussions: Development of the Calgary Adapted aRm Ergometer (CARE) exertion test: A physiological alternative to the Calgary Concussion Cycle Test

Experimental Physiology, EarlyView.
Abstract Aerobic exercise testing helps facilitate recovery post‐concussion. Current protocols (Calgary Concussion Cycling Test: CCCT) are inaccessible for athletes with lower‐body impairments (i.e. Para athletes). This study compared physiological parameters for a novel arm crank test, the Calgary Adapted aRm Ergometer (CARE) test, with the CCCT ...
Jonathan D. Smirl, Joshua J. Burkart, Matthew G. Neill, Jean‐Michel Galarneau, Elizabeth K. S. Fletcher, Joel S. Burma, Nathan E. Johnson, John J. Leddy, Mohammad N. Haider, William M. Adams, Cheri Blauwet, Chantel T. Debert, Carolyn A. Emery   +12 more
wiley   +1 more source

Determination of hemispheric dominance with mental rotation using functional transcranial Doppler sonography and FMRI

, 2010
the aim of this study was to investigate specific activation patterns and potential gender differences during mental rotation and to investigate whether functional magnetic resonance imaging (fMRI) and functional transcranial Doppler sonography (fTCD ...
Johannes T. Heverhagen, Karl Martin Klein, Anke Hermsen, Rosenow, Felix, Susanne Knake, Felix Rosenow, Hattemer, Katja, Heverhagen, Johannes T, Klein, Karl Martin, Plate, Annika, Keil, Boris, Wolfgang H. Oertel, Haag, Anja, Knake, Susanne, Hermsen, Anke, Oertel, Wolfgang H, Anja Haag, Annika Plate, Hamer, Hajo M, Boris Keil, Katja Hattemer, Hajo M. Hamer   +21 more
core   +1 more source

Physiological evaluation of the Calgary adapted aRm ergometer (CARE) concussion exertion test in adolescent athletes: A repeated‐measures observational study

Experimental Physiology, EarlyView.
Abstract Exertion testing helps inform exercise prescription during concussion recovery. The Calgary Adapted aRm Ergometer (CARE) test, developed as the first upper‐body specific exertion test, aims to improve accessibility and inclusivity in concussion care.
Joshua J. Burkart, Matthew G. Neill, Jean‐Michel Galarneau, Tegan Wilder, Sarah Johns, Joseph Carere, John J. Leddy, Mohammad N. Haider, William M. Adams, Cheri Blauwet, Chantel T. Debert, Carolyn A. Emery, Jonathan D. Smirl   +12 more
wiley   +1 more source

Transcranial Doppler ultrasound evaluation of vascular recanalization following tissue plasminogen activator intravenous thrombolysis in acute middle cerebral artery occlusion: A case report and literature review

SAGE Open Medical Case Reports
Acute cerebral infarction, or stroke, is one of the leading causes of death and disability among adults worldwide, and the key to its treatment is achieving early recanalization of occluded blood vessels, methods for which include intravenous ...
Shuangyun Lv, Ronghui Liu, Jiapeng Sun, Hongmei Liu, Jinhui Bian, Changxia Ding, Xin Guo   +6 more
doaj   +1 more source

Diagnosis of delayed cerebral ischaemia and cerebral vasospasm in subarachnoid haemorrhage

Neurología (English Edition), 2010
Objective: A review of current foundations for the medical diagnosis of vasospasm and delayed cerebral ischaemia due to spontaneous subarachnoid haemorrhage.
P.L. Rodríguez García, L.R. Rodríguez Pupo, D. Rodríguez García   +2 more
doaj   +1 more source