Does the Bow Fit: Using Anthropometry and Grip Strength to Assess Fractional-Size Violin Bows

This study evaluates the dimensions of fractional-size violin bows in relation to the anthropometric and grip-strength measurements of children and adults. In string education, various methods and devices have been put forward to measure children for the correct violin size, but there is a lack of research regarding the proper bow size. Results from this study indicate that fractional-size bows are manufactured with nearly identical dimensions to full-size bows, except for total length. A review of anthropometry research affirms that children’s hands grow at a near constant proportion to their arms. This finding indicates the need for fractional-size bows with dimensions different from the current standard. An analysis of grip-strength research in children at various ages suggests that the weights of fractional-size bows are also not ideal. Experimental bow dimensions are proposed for further study and recommendations are made to decrease the weights of fractional-size violin bows to make them better suited for children.