Well, today in the USA for dudes over 20 it's about 5-9 and 197 pounds: 40-inch waist; pear shaped. But in 1957 it was more like 5-8 and 165. Thirty-two-inch waist. So by "normal-proportioned" I was meaning "period-correct for 1957."
You know I'm all about those period-correct details.