Change of cortical foot activation following 70 days of head-down bed rest
نویسندگان
چکیده
منابع مشابه
Increased Brain Activation for Dual Tasking with 70-Days Head-Down Bed Rest
Head-down tilt bed rest (HDBR) has been used as a spaceflight analog to simulate the effects of microgravity exposure on human physiology, sensorimotor function, and cognition on Earth. Previous studies have reported that concurrent performance of motor and cognitive tasks can be impaired during space missions. Understanding the consequences of HDBR for neural control of dual tasking may possib...
متن کاملBrain plasticity and sensorimotor deterioration as a function of 70 days head down tilt bed rest
BACKGROUND Adverse effects of spaceflight on sensorimotor function have been linked to altered somatosensory and vestibular inputs in the microgravity environment. Whether these spaceflight sequelae have a central nervous system component is unknown. However, experimental studies have shown spaceflight-induced brain structural changes in rodents' sensorimotor brain regions. Understanding the ne...
متن کاملEffects of 14 days of head-down tilt bed rest on cutaneous vasoconstrictor responses in humans.
This study tested the hypothesis that head-down tilt bed rest (HDBR) reduces adrenergic and nonadrenergic cutaneous vasoconstrictor responsiveness. Additionally, an exercise countermeasure group was included to identify whether exercise during bed rest might counteract any vasoconstrictor deficits that arose during HDBR. Twenty-two subjects underwent 14 days of strict 6 degrees HDBR. Eight of t...
متن کاملBaroreflex control of muscle sympathetic nerve activity after 120 days of 6° head-down bed rest
Kamiya, Atsunori, Satoshi Iwase, Hiroki Kitazawa, Tadaaki Mano, Olga L. Vinogradova, and Irina B. Kharchenko. Baroreflex control of muscle sympathetic nerve activity after 120 days of 6° head-down bed rest. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R445– R452, 2000.—To examine how long-lasting microgravity simulated by 6° head-down bed rest (HDBR) induces changes in the baroref...
متن کاملFive days of head-down-tilt bed rest induces noninflammatory shedding of L-selectin.
Head-down-tilt bed rest (HDTBR) is a popular model, simulating alterations of gravitation during space missions. The aim of this study was to obtain a better insight into the complexly orchestrated regulations of HDTBR-induced immunological responses, hypothesizing that artificial gravity can mitigate these HDTBR-related physiological effects. This crossover-designed 5 days of HDTBR study inclu...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2018
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00693.2017