Measurements of the force-velocity relationship during movements are complicated by aspects such as mixed fiber composition involving fast and slow twitch muscle fibers, anatomical joint configuration involving main joints used for power production, and levels of neural activation involving muscle force and power velocity relationships. (Edgerton, Roy, & Gregor, 1986; Faulkner, Clafin, & McCully, 1986; Gregor et al., 1979; Herbert & Gandevia, 1995; Maclntosh & Holash, 2000; Perrine, 1986; Perrine & Edgerton, 1978; Wickiewicz et al., 1984). Despite these limitations, examination of the force-velocity relationship during concentric or eccentric movements9quantifies the ability of the intact neuromuscular system to function under various loading conditions, which is essential to understanding maximal power production during human movements (Cormie et al., 2011).The ability of skeletal muscle to generate force is critically dependent on sarcomere length. The greatest potential for force production on activation of the cross bridge cycle exists when the sarcomere length provides for optimal overlap between the actin and myosin filaments (Edman, 1966; Gordon et al., 1966; Lieber et al., 1994). At this length, cross-bridge interaction is maximal, which allows for the greatest levels of active tension development (active muscle force) (Edman, 1966; Gordon et al., 1966; Lieber et al., 1994). Force production is impaired when sarcomere lengths are shortened below the optimal length due to the overlap of the actin filaments from the opposite ends of the sarcomere (Lieber, 2010). When stretching a sarcomere beyond its optimal length, it reduces the force production capacity, and at longer lengths cross-bridge interaction is decreased as a result of less overlap between the actin-myosin filaments (Edman, 1966; Gordon et al., 1966; Lieber et al., 1994). While muscular power is identified by the force- velocity relationship, the length-tension relationship influences the ability of muscle fibers to develop force and therefore, plays an important role in maximal muscular power production (Cormie et al., 2011).Methods used to enhance power outputStatic stretching. Static stretching is traditionally used as part of a warm-up to increase flexibility or pain free joint ROM in attempt to promote better performances (Vetter, 2007). It is believed that the slow, controlled movement of static stretching allows the stretch to be performed easily and safely, with reduced risk of injury compared10with other forms of stretching (Smith, 1994). However, studies have suggested that pre- exercise stretching may temporarily compromise a muscle ability to produce force (Behm & Chaouachi, 2011; Behm et al., 2004; Behm et al., 2001; Power, Behm, Cahill, Carroll, & Young, 2004). In addition, some of the measured parameters have included jump height or distance, peak vertical power or velocity, time in air and ground contact time, maximal voluntary contraction force, isokinetic torque, muscle activation, musculotendinous stiffness, muscular vibrations, reaction and movement time, balance and proprioception (Fowles et al., 2000; McNeal & Sands, 2003; Vetter, 2007; Young et al., 2005).