62863
Descripción
Fichas por alexlpeart, actualizado hace más de 1 año
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Creado por alexlpeart
hace más de 11 años
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| Pregunta | Respuesta |
| What are the physiological impacts of micro-gravity? | Decreased weight and muscle mass, Orthostatic intolerance, Bone demineralisation (osteoporosis) |
| What are the metabolic consequences of microgravity? | decreased energy intake, decreased protein synthesis |
| What recommendations would you give to if someone was going to experience microgravity? | Ensure exercise is complete, supplement calcium, vit K and vit D and increase protein uptake. |
| What physiological responses do we have to heat stress? | Increases cardiovascular strain, increased skin and core temp, increased fluid loss |
| What are the metabolic effects of heat stress? | increased carbohydrate contribution to energy production. due to elevated adrenaline increasing CHO contribution to energy generation. Also increased muscle temp results in elevated glycogen contribution |
| Give some recommendations for someone going into a hot environment. | Eat a high CHO diet, maximize heat loss and increase fluid intake. |
| Give some physiological responses to cold stress. | Decreased body temp, increased heat retention (shivering, vasoconstriction), increased cardiac output, increased oxygen uptake, increased catachoamines |
| Give some metabolic responses to cold stress. | Increases CHO contribution to energy production due slower FFA oxidation, Shivering elevating energy use by 430kcal and increasing BMR. Also see increased neuropeptide Y NPY and decreased leptin cause increased hunger. |
| Give the physiological effects of altitude. | decreased cardiac output, increased heart rate, increased ventilation rate, weight loss. |
| Give the metabolic effects of altitude. | Negative energy balance due to decreased energy intake at altitude. |
| Give some recommendations of someone going to altitude. | CHO rich diet, which is palatable so your more like to eat it. Also try to become acclimation to your environment before undertaking high levels of physical activity. |
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