When I first read this headline, I thought it was saying that riding a bicycle caused Parkinson's lol. But it is saying that observations (and measurments, too - hooray!) may help when trying to diagnose atypical versus regular PD.
Read here:
http://health.usnews.com/health-news...sons-diagnosis
" A patient's ability to ride a [COLOR=#005497 !important][COLOR=#005497 !important]bicycle[/COLOR][/COLOR] can help doctors determine whether the patient has Parkinson's disease or atypical parkinsonism . . . "
These tests using exercise equipment may give us more accurate information than simple observations of how we tap our fingers or walk!
Peg