The goal of this clinical trial is to learn how delayed onset muscle soreness (DOMS) in the calf muscle (gastrocnemius) affects the muscles of the posterior chain and physical performance in healthy young adults. The main questions the study aims to answer are: Does DOMS in the calf muscle change the biomechanical properties (tone, stiffness, elasticity) of other muscles in the posterior chain? Does DOMS lower trunk endurance, muscle strength, balance, or jump performance? Participants will: Take part in a gastrocnemius exercise protocol designed to safely create DOMS Complete repeated assessments at baseline, immediately after exercise, and at 24, 48, and 72 hours Have their muscle properties measured with a handheld device Complete trunk endurance tests, muscle strength tests, balance tests, and a vertical jump test Provide a blood sample to measure creatine kinase (a marker of muscle damage) This research may help clinicians better understand how soreness in one muscle can influence the whole posterior chain and may guide safer training and recovery strategies.
Age range
18 Years – 25 Years
Sex
ALL
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Muscle Biomechanical Properties (Muscle Tone)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Muscle Biomechanical Properties (Muscle Stiffness)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Muscle Biomechanical Properties (Muscle Elasticity)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Muscle Biomechanical Properties (Muscle Relaxation Time)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Muscle Biomechanical Properties (Muscle Creep)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Trunk Endurance Assessment (Sorenson Test)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Trunk Endurance Assessment (Sit-up Test)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS
Trunk endurance assessment (Side Bridge Test-Right and Left)
Timeframe: Baseline, 24 hours post-DOMS, 48 hours post-DOMS, and 72 hours post-DOMS