Lower-Limb Strength AsymmetryNCT07766096
Effects of Unilateral Complex Training on Lower-Limb Strength Asymmetry and Athletic Performance in Basketball Players
A study testing Unilateral Complex Training in people with Lower-Limb Strength Asymmetry and Athletic Performance, run by University of Gaziantep at 1 site in Turkey (Türkiye).
Trial summary
This study evaluated the effects of an eight-week unilateral complex training program on lower-limb strength, inter-limb strength asymmetry, and athletic performance in male basketball players. Read more about this study
- Who is it for?
- Ages 18 to 21 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Lower-Limb Strength Asymmetry, Athletic Performance
- What is being tested?
- Unilateral Complex Training
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 29 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 10 May 2026to 7 Jul 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 21 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Male basketball players who volunteered to participate in the study.
- Having at least 5 years of basketball training experience.
- Participating in regular basketball training at least four times per week during the previous 2 years.
- Being actively involved in regular basketball training and competition.
- Being able to participate in the unilateral complex training and performance testing procedures.
Who cannot join
- Presence of any musculoskeletal injury or health condition that could affect physical performance or prevent participation in the training program.
- Current injury or medical condition restricting participation in basketball training or performance testing.
- Failure to complete the required training or testing sessions.
- Use of medications or treatments that could substantially affect physical performance, if applicable.
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Gaziantep University, Faculty of Sport Sciences
Gaziantep
About this study
Official title: Effects of an Eight-Week Unilateral Complex Training Program on Musculoskeletal Function, Inter-Limb Strength Asymmetry, and Athletic Performance in Male Basketball Players: A Randomized Controlled Trial
This study evaluated the effects of an eight-week unilateral complex training program on lower-limb strength, inter-limb strength asymmetry, and athletic performance in male basketball players. Participants were randomly assigned to either an experimental group that performed unilateral complex training in addition to regular basketball training or a control group that continued regular basketball training. Outcomes included isokinetic knee flexor and extensor strength, hamstring-to-quadriceps strength ratios, inter-limb strength asymmetry, vertical jump performance, and 20-m sprint performance. The study aimed to determine whether unilateral complex training could improve lower-limb neuromuscular function and athletic performance in basketball players.
Read the detailed description
Basketball requires repeated jumping, sprinting, changing direction, and unilateral force production, which may contribute to strength differences between the lower limbs. Unilateral complex training combines resistance exercises with biomechanically similar explosive exercises performed predominantly on one limb. This approach may provide a sport-specific stimulus for improving neuromuscular function and reducing inter-limb strength asymmetry.
In this randomized controlled study, male basketball players were allocated to an experimental or control group. The experimental group completed an eight-week unilateral complex training program twice per week in addition to regular basketball training, whereas the control group continued regular basketball training without the additional intervention. Participants were assessed before and after the intervention using isokinetic knee strength testing, countermovement and Abalakov jump tests, and a 20-m sprint test.
- Being tested
- Unilateral Complex Training
- Keywords
- Basketball, Unilateral Complex Training, Isokinetic Strength Inter-Limb Asymmetry, Athletic Performance, Neuromuscular Performance
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Unilateral Complex TrainingBehavioural
Participants completed an eight-week unilateral complex training program in addition to their regular basketball training. Training was performed twice per week, with approximately 48-72 hours between sessions. Each session lasted approximately 45-55 minutes and combined unilateral resistance exercises with biomechanically similar explosive or plyometric exercises. Training load and exercise difficulty were progressively adjusted throughout the intervention period.
| Study group | Role | What they receive |
|---|---|---|
| Unilateral Complex Training Group | Experimental | Participants in this group performed an eight-week unilateral complex training program twice per week in addition to their regular basketball training. The program combined unilateral resistance exercises with biomechanically similar explosive exercises. Receives: Behavioral: Unilateral Complex Training |
| Control Group | No intervention | Participants in this group continued their regular basketball training throughout the eight-week study period and did not perform the additional unilateral complex training intervention. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Lower-Limb Strength Asymmetry
Lower-limb strength asymmetry will be assessed using an isokinetic dynamometer. Peak torque of the knee extensors and flexors will be measured bilaterally at an angular velocity of 60°/s. Inter-limb asymmetry will be calculated from the strength values of the right and left limbs and expressed as a percentage (%). Lower percentage values indicate lower inter-limb strength asymmetry.
Measured: Baseline and after the 6-week intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Aug 2026
- Study start10 May 2026
- Primary completion6 Jul 2026
- Study completion7 Jul 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Lower-Limb Strength AsymmetryStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants were randomly assigned to either an experimental group receiving unilateral complex training in addition to regular basketball training or a control group continuing regular basketball training.
- Masking
- None (open label)
- Enrolment
- 29 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Gaziantep
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Zarife Pancar, University of Gaziantep
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07766096
- Sponsor's protocol ID
- 2026-037
- Status last verified
- Aug 2026
- First submitted
- 10 Aug 2026
- Last updated
- 14 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 14 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of an Eight-Week Unilateral Complex Training Program on Musculoskeletal Function, Inter-Limb Strength Asymmetry, and Athletic Performance in Male Basketball Players: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07766096
- Acronym / sponsor ID
- 2026-037
- Keywords
- Basketball, Unilateral Complex Training, Isokinetic Strength Inter-Limb Asymmetry, Athletic Performance, Neuromuscular Performance
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 29 participants (actual)
- Lead sponsor
- University of GaziantepUniversity, hospital or other
- Study start
- 10 May 2026 (actual)
- Primary completion
- 6 Jul 2026 (actual)
- Study completion
- 7 Jul 2026 (actual)
- First posted
- 14 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study evaluated the effects of an eight-week unilateral complex training program on lower-limb strength, inter-limb strength asymmetry, and athletic performance in male basketball players. Participants were randomly assigned to either an experimental group that performed unilateral complex training in addition to regular basketball training or a control group that continued regular basketball training. Outcomes included isokinetic knee flexor and extensor strength, hamstring-to-quadriceps strength ratios, inter-limb strength asymmetry, vertical jump performance, and 20-m sprint performance. The study aimed to determine whether unilateral complex training could improve lower-limb neuromuscular function and athletic performance in basketball players.
Detailed description
Basketball requires repeated jumping, sprinting, changing direction, and unilateral force production, which may contribute to strength differences between the lower limbs. Unilateral complex training combines resistance exercises with biomechanically similar explosive exercises performed predominantly on one limb. This approach may provide a sport-specific stimulus for improving neuromuscular function and reducing inter-limb strength asymmetry.
In this randomized controlled study, male basketball players were allocated to an experimental or control group. The experimental group completed an eight-week unilateral complex training program twice per week in addition to regular basketball training, whereas the control group continued regular basketball training without the additional intervention. Participants were assessed before and after the intervention using isokinetic knee strength testing, countermovement and Abalakov jump tests, and a 20-m sprint test.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Participants were randomly assigned to either an experimental group receiving unilateral complex training in addition to regular basketball training or a control group continuing regular basketball training.
| Arm | Type | Receives |
|---|---|---|
| Unilateral Complex Training Group | Experimental | Behavioral: Unilateral Complex TrainingParticipants in this group performed an eight-week unilateral complex training program twice per week in addition to their regular basketball training. The program combined unilateral resistance exercises with biomechanically similar explosive exercises. |
| Control Group | No intervention | –Participants in this group continued their regular basketball training throughout the eight-week study period and did not perform the additional unilateral complex training intervention. |
Who may qualify
- Ages
- 18 to 21 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Male basketball players who volunteered to participate in the study.
- Having at least 5 years of basketball training experience.
- Participating in regular basketball training at least four times per week during the previous 2 years.
- Being actively involved in regular basketball training and competition.
- Being able to participate in the unilateral complex training and performance testing procedures.
Key exclusion criteria (4 listed)
- Presence of any musculoskeletal injury or health condition that could affect physical performance or prevent participation in the training program.
- Current injury or medical condition restricting participation in basketball training or performance testing.
- Failure to complete the required training or testing sessions.
- Use of medications or treatments that could substantially affect physical performance, if applicable.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Unilateral Complex TrainingParticipants completed an eight-week unilateral complex training program in addition to their regular basketball training. Training was performed twice per week, with approximately 48-72 hours between sessions. Each session lasted approximately 45-55 minutes and combined unilateral resistance exercises with biomechanically similar explosive or plyometric exercises. Training load and exercise difficulty were progressively adjusted throughout the intervention period. | Behavioural | Unilateral Complex Training Group |
Primary outcome
Lower-Limb Strength Asymmetry
Time frame: Baseline and after the 6-week intervention
Lower-limb strength asymmetry will be assessed using an isokinetic dynamometer. Peak torque of the knee extensors and flexors will be measured bilaterally at an angular velocity of 60°/s. Inter-limb asymmetry will be calculated from the strength values of the right and left limbs and expressed as a percentage (%). Lower percentage values indicate lower inter-limb strength asymmetry.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Aug 2026.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Unilateral Complex Training in people with Lower-Limb Strength Asymmetry and Athletic Performance, run by University of Gaziantep at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 14 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Lower-Limb Strength Asymmetry (time frame: Baseline and after the 6-week intervention). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Aug 2026.