Equations estimating a one-repetition maximum match on heavy sets and diverge as reps climb
A one-rep max is the heaviest weight a person can lift once, and published equations estimate it from a lighter set take...
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The usual mid-parental height range missed 12% of Galton's grown children
The usual target height averages the parents' heights, shifts the result 6.5 cm for sex and allows 8.5 cm either side. I...
Dropping the sex point from the AF stroke score moved no combination between bands
In 2024 the European Society of Cardiology replaced the CHA2DS2-VASc stroke score for atrial fibrillation with CHA2DS2-V...
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A baby's growth percentile depends on the chart behind it
A growth percentile ranks one measurement against a reference group of children, and the WHO 2006 standard, the US CDC 2...
How accurate is the Chinese gender chart, and why versions disagree
A test on 2.8 million Swedish births found the Chinese gender chart no better than a coin toss, and simply guessing "boy...
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