The Effect of Torque

Overview

Torque is the rotational equivalent of linear force. It is the correct term to describe the force across a joint produced by the contraction of muscles. Although the desired action of the Weightlifter is to produce force on the bar in a linear direction (vertically upwards), it is achieved through the summation of rotational movement (torque) across multiple joints of the body. For example, when a Weightlifter performs a heavy Clean Pull, there must be significant amounts of torque across the ankle, knee and hip joints, and to a smaller extent, the shoulder joint. However, Weightlifters also need to exert considerable force to stabilise the barbell in the receiving position and resist the force of gravity. Slight deviations in body position can significantly influence the weightlifters’ chance of achieving stability. For this reason, a significant part porportion of training focuses on perfecting receiving positions for the Snatch, the Clean and the Jerk.

This video provides and explanation why it is important for athletes to achieve upright vertical receiving positions in the Olympic lifts. The more the vertical the less the angular force (torque) the athlete will have to deal with, and this important in the quest to remain in balance in the receiving position.