It plots your weight and height on a graph to get an answer and is a blunt stick at best, prone to odd results such as suggesting certain rugby internationals are overweight.
"I didn't have such a good spring - I had a couple of crashes in races and a bit of bad luck," she tells us as she collects her Team GB kit in Loughborough, but she is still at her analytical best, prone to immediate self-assessment.
There is an infirmity in Marcel's nature to which the best are prone.
Professional athletes in America, while admired for their physical gifts, are generally thought of as greedy and self-indulgent at best and prone to violent behaviour at worst.
If Lipsyte is often his own best promoter, prone to grandstanding (like announcing his resignation from a brief job at The New York Post on TV), he also, to his credit, gives his critics full voice, particularly the broadcaster Bob Costas, who told Lipsyte he wanted him to be "less corrosive; skeptical, not cynical".
The combined effects of these two factors make existing assays semiquantitative at best and prone to fluctuations and false readouts, especially when adapted to genome-scale analysis.
He fumbled words, missed chances, and, despite his best intentions, was prone to mishandling fragile things.
Years of underinvestment on Soviet-era infrastructure have left the M10, rarely free of traffic jams on the best of days, prone to nasty bottlenecks in several small towns that lack bypasses.
Still, the arrival of a third series of Gimme Gimme Gimme (now on BBC1 on Friday nights, heaven help us, right opposite Will and Grace, TV's other gay man/straight woman flatshare comedy) is proof that even the best actors are prone to bouts of, at best, selective amnesia, or at worst, early-onset Alzheimer's.
Our data suggest that whereas increasing IAP raises the PEEP level needed to achieve the best lung compliance, prone repositioning does not consistently influence the PEEP level needed to achieve "best" values for CLUNG and avoid negative end-expiratory transpulmonary pressures determined using an esophageal balloon catheter.
So the major goal is to find out the best kind of prone position.
