Stretching is traditionally used as part of a warmup to increase flexibility or painfree range of motion (ROM) about a joint in an attempt to promote better performances and/or reduce the risk of injury. Physiotherapist also recommend that their athletes or patients stretch before performing strengthening exercises or strength assessment tests. However, authors of recent systematic reviews have suggested that preexercise stretching may temporarily compromise a muscle’s ability to produce force and power output. This ‘‘stretchinginduced force deficit’’ has been reported to affect isometric force , Power, concentric isokinetic peak torque , dynamic constant external resistance (DCER) force , vertical jumping performance and balance different types of PNF techniques have been suggested like static, dynamic , Hold Relax and Contract–Relax, Agonist Contraction and Hold–Relax with Agonist Contraction . Effects of stretching on strength / torque and performance is still in inconclusive with studies showing both increase and decrease in both the variables. There is dearth of evidence related to the subject of peak torque after modal variants of stretching, hence in future there is need for randomized controlled trial on athletes and various patient populations. 

Keywords: Stretching; PNF; Torque; Performance.