chapter  18
Control of grip force in interceptive sport actions
ByFRANÇOIS-XAVIER LI AND YVONNE TURREL L
Pages 10

The literature reveals that grip force is roughly twice the minimal value required to prevent the hand-held object from slipping (see Flanagan and Wing, 1995). This finding suggests that participants tested in laboratory-based experiments have not tended to adopt an efficient strategy. However, it is noteworthy that grip force values are usually relatively low (less than 20 N). It is possible that this low level of task constraint has not pushed participants to adopt an efficient strategy. It is also interesting to note that most of the studies have been conducted using tasks where the load force was applied progressively. This is dramatically different from the impact of a ball on a racket’s surface, which is a discrete and explosive affair.