A Study of Certain Factors Influencing Academic Achievement with Special Reference to the Health Factor
idea of measuring vital capacity, breathing capacity or chest circumference, then expan sion. This measure was usually added to the weight/height index. Vierordt's formula for determining weight in connection with body length and chest circumference endeavored to present this combination mathematically. Some investigators believed that strength was a factor in physical well-being, and intro duced the measures of grip, generally used with other measures. Naccarati evolved the