CompletedNot Applicable

Acute Muscle Damage After Eccentric Quasi-Isometric Exercise of the Elbow Flexors

Taiwan30 participantsStarted 2020-08-01

Plain-language summary

This study compared the acute muscle damage responses of the elbow flexor muscles following two types of resistance exercise: eccentric quasi-isometric (EQI) exercise and traditional eccentric (ECC) exercise. Thirty healthy young men were randomly assigned to perform either EQI or ECC using a dumbbell elbow flexion exercise. Both groups exercised with the same relative external load and performed the exercise to voluntary fatigue. Muscle function, muscle soreness, and blood markers related to muscle damage were assessed before exercise, immediately after exercise, and over a 7-day recovery period. The purpose of this study was to examine whether EQI exercise, which involves a prolonged isometric phase followed by a very slow eccentric action, induces different levels of acute muscle damage and recovery compared with traditional eccentric exercise.

Who can participate

Age range20 Years – 30 Years

SexMALE

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Healthy young men * Age between 20 and 30 years * No participation in any regular exercise training programs during the previous 12 months * No history of cardiovascular disease, diabetes mellitus, liver disease, respiratory disorders, neuromuscular disease, or musculoskeletal disorders * No long-term use of chronic prescription medications * No history of dizziness, chest discomfort, or falls during physical activity * Not previously diagnosed by a physician as unsuitable for exercise Exclusion Criteria: * History of upper limb musculoskeletal, joint, or bone injuries * Inability to independently perform activities of daily living * Presence of cardiovascular, metabolic, respiratory, neuromuscular, or musculoskeletal disorders * Requirement for assistive devices for ambulation in daily life * Previous medical diagnosis indicating unsuitability for exercise participation * Presence of acute illness at the time of enrollment * History of major surgery within the past 12 months * Severe physical injury that could impair exercise performance or daily activities

What they're measuring

Maximal Voluntary Isometric Contraction (MVC) Torque

Timeframe: Baseline (Day 0) and Days 1, 2, 3, and 7

Trial details

NCT IDNCT07431879

SponsorChinese Culture University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2021-08-01