Although this study measured breast density on a continuous scale using the computer-assisted Cumulus method [ 24], the range of physical activity was narrow.
Children who spend more time in front of television and computer screens and less in outdoor physical activity have narrower blood vessels in their eyes, a new study has found.
They have higher minute ventilation and higher levels of physical activity, spend more time outside than adults, and their peripheral airways more susceptible to inflammatory narrowing [ 61].
No association between physical activity level and joint space narrowing or osteophyte occurrence was observed in the Chingford study [34].
This effect was not observed for occupational physical activity alone, probably due to a narrow range of self-reported physical activity at work among females.
It can be narrowed down to the selected groups of residents with physical activity limitations – with the highest risk of MRSA.
It is also possible that a narrower intervertebral disc may cause pain and resultant low levels of physical activity.
bMen vs women, adjusted for age, body mass index, physical activity, grade of osteophytes, grade of joint-space narrowing, and baseline tibial plateau bone area.
"Not being able to swim can narrow people's options to take part in all types of sport and physical activity, like canoeing and sailing, and it has a has a significant impact on their safety".
An alternative theory is that physical activity could provoke vasomotor symptoms in women who have a narrowed thermo-neutral zone [ 11].
