MUSCULAR STRENGTH is the ability of a muscle or group of muscles to exert force. It is often measured in terms of the amount of weight a person can lift or the amount of force a muscle can generate. Two words that are commonly used to describe muscular strength are SINEW and BRAWN. SINEW is defined as strong, tough fibrous tissue that connects muscles to bones, while BRAWN is defined as physical strength or power. Both words are used to describe the strength of a muscle or group of muscles.