Abstract: Plantarflexors are essential in gait and postural control, they are key components of injury prevention and rehabilitation in sports. Objective: To verify an immediate effect of Cryotherapy and heat on plantarflexor extensibility prior to stretching and to compare which is more effective in young asymptomatic females.40 young female participants were taken and divided in 4 groups,10 in each group and immediate effect was noted. Outcome Measure: ROM. Result: Data analyzed revealed significant increase in ROM in Group which was given Cryotherapy prior to stretching. Conclusion: Cryotherapy prior to stretching has more of an immediate effect compared to superficial heat and Deep heat on plantarflexor extensibility.