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

NCT ID: NCT07046598

Last Updated: 2025-07-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-15

Study Completion Date

2024-11-22

Brief Summary

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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.

Detailed Description

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Conditions

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Body Mass Index Physical Exertion Muscle Damage Creatine Kinase Lactate Dehydrogenases

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Normal Weight Group

Participants with a Body Mass Index (BMI) between 18 and 24 kg/m². Subjects in this group performed a standardized drop jump (DJ) protocol consisting of 100 total jumps from a 60 cm platform. Muscle damage markers (Creatine Kinase and Lactate Dehydrogenase) were measured pre-exercise, immediately post-exercise, and 24 hours post-exercise.

Group Type EXPERIMENTAL

Drop Jump Protocol

Intervention Type BEHAVIORAL

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.

Overweight Group

Participants with a Body Mass Index (BMI) between 25 and 35 kg/m². Subjects in this group performed the same standardized drop jump (DJ) protocol as the normal weight group. Blood samples were collected at three time points to evaluate changes in muscle damage markers (Creatine Kinase and Lactate Dehydrogenase).

Group Type EXPERIMENTAL

Drop Jump Protocol

Intervention Type BEHAVIORAL

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.

Interventions

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Drop Jump Protocol

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.

Intervention Type BEHAVIORAL

Eligibility Criteria

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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
Minimum Eligible Age

18 Years

Maximum Eligible Age

30 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Melike Nur Eroğlu

OTHER

Sponsor Role lead

Responsible Party

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Melike Nur Eroğlu

Lecturer

Responsibility Role SPONSOR_INVESTIGATOR

Locations

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

Serdivan, Sakarya, Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

References

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Yeniyol B, Pancar S, Soylu Y, Birinci YZ, Eroglu MN, Fernandez-Elias VE. The overlooked risk in drop jump protocols: higher body weight as a catalyst for increased muscle damage. BMC Sports Sci Med Rehabil. 2025 Sep 29;17(1):278. doi: 10.1186/s13102-025-01330-z.

Reference Type DERIVED
PMID: 41024229 (View on PubMed)

Provided Documents

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Document Type: Informed Consent Form

View Document

Other Identifiers

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SakaryaAppliedSciencesU

Identifier Type: -

Identifier Source: org_study_id

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