Quadriceps Concentric vs Eccentric

Effect of Different Izotonic Quadriceps Exercise Training on Muscle Strength, Muscle Thickness and Balance in Healthy Individuals

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03636854

Enrollment

Registered

2018-08-17

Start date

2018-03-15

Completion date

2019-05-28

Last updated

2020-07-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

Muscle thickness, muscle strength, hop Test, Balance, performance

Brief summary

The aim of the study is to compare the effects of concentric and eccentric exercises on muscle strength, muscle thickness and balance in healthy Individuals. Participants will randomly be divided into 2 groups: Concentric exercise (CE) group, eccentric exercise (EE) group. Concentric exercise group will be doing 2 concentric exercises and eccentric exercise group will be doing 2 eccentric exercise for 8 weeks. The evaluations will be repeated after 8 weeks of training to reveal the effects of concentric and eccentric exercises.

Interventions

OTHERConcentric exercises

Resistance concentric straight leg raise and knee extension will be done.

OTHEREccentric exercises

Resistance eccentric straight leg raise and knee extension will be done.

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 25 Years

Healthy volunteers

Yes

Inclusion criteria

* Age between 18-25 * Healthy individuals * Able to read, write and understand Turkish * Willing and able to attend study

Exclusion criteria

* Any neurological, musculoskeletal or vascular disease in any of the lower extremity * Having lower extremity musculoskeletal pain * Previous history of surgery in any of the lower extremity * Mental and cognitive disorders that would seriously affect cooperation

Design outcomes

Primary

Measure	Time frame	Description
Change in muscle thickness	Before training and after 8 weeks of training	Change in muscle thickness will be measured by using Ultrasound

Secondary

Measure	Time frame	Description
Change in muscle strength	Before training and after 8 weeks of training	Change in muscle strength will be assessed by using hand-held dynamometer.
Change in balance	Before training and after 8 weeks of training	Change in balance will be measured by using Biodex Balance System.
Change in function	Before training and after 8 weeks of training	Change in function will be measured by using single leg hop test

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026