Impact of daily artificial gravity on autonomic cardiovascular control following 60-day head-down tilt bed rest [PDF]
Frontiers in Cardiovascular Medicine, 2023 Impaired cardiovascular autonomic control following space flight or immobilization may limit the ability to cope with additional hemodynamic stimuli. Head-down tilt bedrest is an established terrestrial analog for space flight and offers the opportunity ...
J.-N. Hoenemann +16 more
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Effect of head-down tilt on clinical outcome and cerebral perfusion in ischemic stroke patients: A case series [PDF]
Frontiers in Neurology, 2022 BackgroundThe effect of head position on stroke is not clear. The current study aimed to observe the effect of head-down tilt on acute ischemic stroke (AIS) patients with large vessel occlusion.MethodsWe observed the influence of head-down tilt position ...
Zi-Ai Zhao +6 more
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The effect of steep head-down tilt on respiratory status in endometrial cancer patients with obesity during robot-assisted hysterectomy [PDF]
Gynecologic Oncology Reports, 2022 Objective: To evaluate the effect of head-down tilt on airway pressure in gynecologic patients with obesity during robot-assisted hysterectomy. Methods: We retrospectively reviewed the records of 27 patients with body mass index (BMI) ≥ 25 kg/m2 who ...
Akira Mitsuhashi +3 more
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Effects of intermittent seating upright, lower body negative pressure, and exercise on functional tasks performance after head-down tilt bed rest [PDF]
Frontiers in PhysiologyIntroductionBed rest can be used as a ground-based analog of the body unloading associated with spaceflight. In this study, we determined how strict head-down tilt bed rest affects subjects’ performance of functional tests (sit-to-stand, tandem walk ...
Gilles Clément +4 more
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Ventilatory response to head‐down‐tilt in healthy human subjects [PDF]
Experimental PhysiologyPostural fluid shifts may directly affect respiratory control via a complex interaction of baro‐ and chemo‐reflexes, and cerebral blood flow. Few data exist concerning the steady state ventilatory responses during head‐down tilt.
Abdulaziz Alsharifi +6 more
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Cardiovascular responses to leg-press exercises during head-down tilt [PDF]
Frontiers in Sports and Active LivingIntroductionPhysical exercise and gravitational load affect the activity of the cardiovascular system. How these factors interact with one another is still poorly understood.
Cristiano Alessandro +4 more
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Effect of 60 days of head down tilt bed rest on amplitude and phase of rhythms in physiology and sleep in men [PDF]
npj MicrogravityTwenty-four-hour rhythms in physiology and behaviour are shaped by circadian clocks, environmental rhythms, and feedback of behavioural rhythms onto physiology.
María-Ángeles Bonmatí-Carrión +6 more
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The drainage volume control by elevation of drainage height versus head down tilt in supine position for management of cerebrospinal fluid leakage following lumbar posterior surgery [PDF]
BMC Musculoskeletal DisordersObjective To compare the clinical outcomes of control of drainage volume through either elevating the drainage height or tilting the head down in a supine position for the management of cerebrospinal fluid leakage (CSFL) following posterior lumbar ...
Ping Dong +4 more
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Are head-down tilt bedrest studies capturing the true nature of spaceflight-induced cognitive changes? A review [PDF]
Frontiers in Physiology, 2022 Although a number of studies have examined cognitive functions in space, the reasons behind the observed changes described by space research and anecdotal reports have not yet been elucidated. A potential source of cognitive changes is the cephalad fluid
Irén Barkaszi +4 more
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Simulating microgravity with 60 days of 6 degree head-down tilt bed rest compromises sleep [PDF]
npj MicrogravityAstronauts in space often experience sleep loss. In the AGBRESA (Artificial Gravity Bed Rest) study, we examined 24 participants (mean age ± SD, 33 ± 9 years) during two months of 6o head-down tilt (HDT) bed rest, which is a well-established spaceflight ...
Luise Strauch +6 more
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