Is The Level of Muscle Damage After The Drop Jump Protocol Affected By Body Weight and BMI?

Melike Nur Eroğlu50 enrolled

Overview

This study investigated whether muscle damage induced by a drop jump protocol varies based on participants' body weight and BMI. Fifty healthy adults were divided into normal-weight and overweight groups. All participants completed a standardized drop jump protocol, and blood samples were collected before, immediately after, and 24 hours after exercise. Creatine kinase (CK) and lactate dehydrogenase (LDH) levels were analyzed as biomarkers of muscle damage.

Study Type

INTERVENTIONAL

Allocation

NON_RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Body Mass Index Physical Exertion Muscle Damage Creatine Kinase Lactate Dehydrogenases

Interventions

Drop Jump ProtocolBEHAVIORAL

A standardized drop jump (DJ) protocol involving 100 total jumps from a 60 cm platform. Participants performed five sets of 20 jumps, with a 10-second rest between jumps and a 2-minute rest between sets. The protocol was designed to induce muscle damage through eccentric loading.

Eligibility

Sex: MALEMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Healthy adults aged 18-30 * Normal or overweight BMI (18-35 kg/m²) * At least 2 days/week of physical activity * No regular jump training Exclusion Criteria: * Use of medications or supplements * History of musculoskeletal injury * Smoking or alcohol consumption during study period

Locations (1)

Sakarya University of Applied Sciences, Faculty of Sport Sciences, Exercise and Sports Sciences Education, Application and Research Centre

Serdivan, Sakarya, Turkey (Türkiye)

Outcomes

Primary Outcomes

Change in Creatine Kinase (CK) Levels

Serum creatine kinase (CK) concentrations measured at three time points: before the exercise protocol, immediately after the protocol, and 24 hours post-exercise. CK is a biomarker of muscle damage. Blood samples were analyzed using a standard biochemical analyzer.

Time frame: Baseline (pre-exercise), immediately post-exercise, and 24 hours post-exercise

Change in Lactate Dehydrogenase (LDH) Levels

Serum lactate dehydrogenase (LDH) concentrations measured at three time points: before the exercise protocol, immediately after the protocol, and 24 hours post-exercise. LDH is used to evaluate exercise-induced muscle damage. Blood samples were centrifuged and analyzed using standardized laboratory techniques.

Time frame: Baseline (pre-exercise), immediately post-exercise, and 24 hours post-exercise