Dr Lisa McNamee looks to space for the benefit of terrestrial medicine
Dr Lisa McNamee discusses the effects of space travel on the human body and how such knowledge can lead to progress in terrestrial medicineIn the microgravity of space it is called “skeletal unloading” and is significantly more rapid. Astronauts can lose up to 1 or 2 per cent of bone density per month in the hip and spine, according to. “This rapid bone loss can place the crew members at risk for bone fracture and risk of early-onset osteoporosis ,” notes the US space agency.
When you first go into microgravity, you get a kind of a shock to the system .. There’s no shame in getting space sick. There is shame in missing the bag Dr Lisa McNamee: 'When you first go into microgravity, you get a kind of a shock to the system.' Photograph: Chris Maddaloni The ISS is larger than a six-bedroom house, with six sleeping quarters, two bathrooms, a gym and a 360-degree view bay window. In the gym there is a treadmill, an ergometer bike and an advanced resistive exercise device.
There are an estimated 300,000 men and women in Ireland with osteoporosis. As a society we don’t have a great understanding of the things that keeps our bones healthy, she suggests, and, traditionally, women’s health has been a neglected area. It is estimated half of all women in Ireland aged over 50 will suffer a fracture due to osteoporosis, and 25 per cent of older men are likely to be similarly affected. There is up to a one-in-three chance of dying within one year of a hip fracture.
In addition to muscle and bone issues, microgravity also causes a fluid shift in the body, typically giving astronauts puffy faces and skinny “chicken” legs. This redistribution of fluid in the body causes pressure to build at the back of the eye resulting in space associated neuro-ocular syndrome. Her father was a helicopter pilot and engineer and she recalls a family trip to the Air and Space Museum in Washington DC, while visiting their uncle over there. “It was like a defining experience.”at St Bricin’s military hospital in Dublin 7, she points out that learnings from military teams, the airline industry and space industry all feed into each other when it comes to managing error, safety and conflict among personnel.
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