IRCT20210108049966N1 IRCT 2021-02-27 Pakistan Society for the Rehabilitation of the Disabled, Lahore. Comparative effects of Daily Adjustable Progressive Resistance Exercises technique and Close kinetic chain exercises on extensor lag in post-operative knee stiffness Comparative effects of Daily Adjustable Progressive Resistance Exercises technique and Close kinetic chain exercises on extensor lag in post-operative knee stiffness 2020-10-20 anticipated 22 Complete https://irct.ir/trial/53641 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Randomization was done through sealed envelope method on sample size of 22 individuals selected on inclusion & exclusion criteria in order to minimize biasness. Written informed consent will be taken. Lottary method will be used for allocation. Number of chits will be equal to total sample size, odd numbers for Group A allocation and even numbers for group B allocation.Each patient will be requested to draw a chit from the box. N/A Stiffness is defined as an inadequate range of motion (ROM) that results in functional limitations in activities of daily living. Although early studies reported stiffness in >50% of patients with TKA. Postoperative stiffness (loss of motion) caused by arthrofibrosis has a deleterious effect on knee function. There is a common belief that the timing of surgery has an effect on the risk of stiffness after anterior cruciate ligament (ACL) reconstruction surgery.. Intervention 1: Intervention group: Group A, 11 participants will receive Conventional physiotherapy treatment in addition to DAPRE technique by leg extension machine. In DAPRE technique, four sets of exercises were performed. The first two sets of exercise consisted of ten and then six repetitions, per- formed against one-half and three-fourths of the previously established working weight. Working weight is the amount of weight a patient uses during an individual session. The full working weight was used on the third set, and the patient performed as many repetitions as possible. After performing each of the third and fourth sets, patients rested for 1 min. 6 weeks (3 sessions per week) • Hot pack: 10 min • Stretching of calf and hamstring muscle: 10 min. Intervention 2: Intervention group: Group B 11 participants will receive Conventional physiotherapy treatment in addition to close kinetic chain exercises. Close kinetic chain exercises for extensor lag is seated leg press, double or single one third knee bend, step up and down exercise, wall slide with weight. Treatment time will be 30 minutes and three session per week will be applied on alternate day for up to 6 weeks. Pre interventional readings will be taken at baseline & post interventional readings at 6th week. 6 weeks (3 sessions per week) • Hot pack: 10 min • Stretching of calf and hamstring muscle: 10 min. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further decision & information is decided yet.