Effects of Adding End-Range Isometric Holds to Isotonic Knee Extensor Training on Isokinetic Performance in Sedentary Adults

The goal of this clinical trial is to learn if adding a short muscle hold (isometric contraction) to a standard leg-strengthening exercise improves knee muscle strength more than the standard exercise alone, in healthy adults who do not exercise regularly. The main question it aims to answer is: Does adding a 5-second hold at the end of each leg-extension exercise lead to greater gains in front-thigh muscle (quadriceps) strength than leg-extension exercise alone? Researchers will compare two exercise groups to see if the added muscle hold makes a difference: Group 1 will do leg-extension exercises with a 5-second hold added at the end of each repetition. Group 2 will do the same leg-extension exercises without the added hold. Participants will: Do leg-extension exercises 3 days a week for 8 weeks Have their thigh muscle strength tested before and after the program using a special exercise machine Have their thigh size measured before and after the program

NCT Number	NCT07667543
Lead Sponsor	Yeditepe University
Conditions	Quadriceps Muscle Strength, Isokinetic
Enrollment	43 participants
Start Date	2014-12-12
Primary Completion	2015-05-26 (estimated)
Study Completion	2015-07-06 (estimated)
Updated on ClinicalTrials.gov	2026-06-30