Anthropometric dimensions to predict 1-RM bench press in untrained females

Background. Previous research has indicated a strong relationship between a nthropometric dimensions and strength in males. To date, little work has be en done to explore this topic in females, The purpose of this study was to determine the relationships between selected anthropometric dimensions and 1-RM bench press in untrained college females, Methods. Untrained college females (n=113) were evaluated for 18 measured a nd seven derived anthropometric variables to predict 1-RM bench press stren gth. Triplicate measurements were averaged for five skinfolds, five circumf erences, and six skeletal widths. Derived measurements included Body Mass I ndex, percent fat, fat-free mass (FFM), flexed arm cross-sectional area (CS A), shoulder width: hip width ratio, androgyny index,and somatotype. Results. Highest zero-order correlations with bench press were arm CSA (r=0 .45), flexed arm circumference (r=0.45), mesomorphy (r=0.44), and forearm c ircumference (r=0.42), First-order partial correlations holding constant bo dy mass or FFM generally decreased most correlations with bench press (r<0. 30), Factor loadings were used to produce muscle, length, and fat component s which were placed in a multiple regression analysis to predict bench pres s but resulted in only limited success (R=0.58, SEE=+/-5.6 kg), Coefficient s of variation (SEE/Mean x100) for the equations ranged from was 18.9% to 2 1.0%. Conclusions. Prediction of bench press strength from anthropometric dimensi ons does not appear to be practical or accurate in untrained females.