IRCT20210725051979N1 IRCT 2021-08-20 Riphah International University Lahore Effects of interventional techniques in calf muscle soreness in runners EFFECTS OF MYOFASCIAL RELEASE VERSUS STATIC STRETCHING IN CALF MUSCLES SORENESS IN RUNNERS ON FLEXIBILITY AND PERFORMANCE 2021-05-05 anticipated 30 Complete https://irct.ir/trial/57951 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Other, Purpose: Treatment, Other design features: the study conducted was randomized clinical trial, Randomization description: simple randomization method is used. individuals are randomized in two groups by using random number table method. stratified randomization is done. allocation was concealed, Blinding description: athletes who are participated in the study are unaware of which treatment is given. investigator is unaware of study groups. physiotherapist who is giving treatment is unaware of other treatment technique that is given to other group. data collectors are unaware of readings of other groups. outcome assessors do not know the result of other group. N/A Healthy runners. Intervention 1: Intervention group 1: "Myofascial release". Intervention 2: Intervention group 2: Static stretching. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is the data will be collected from athletes with their consent that it will not be shared. it will remain confidential.