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TrainingNCT07697027

A Study on the Effects of Instability Resistance Training on Dynamic Balance and Rapid Change-of-Direction Ability in College Basketball Recruits

A study testing Unstable Resistance Training Group and Traditional Resistance Training in people with Training and Male, run by Richen Sun at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This experiment aims to investigate the effects of unstable resistance training on the dynamic balance ability and rapid directional change mobility of college basketball majors, while comparing it with traditional resistance training to analyze the statistical differences between the two in enhancing the dynamic… Read more about this study

Who is it for?
Any age, men onlyHealthy volunteers can take part
Conditions the study is for
Training, Male, Athletes
What is being tested?
Unstable Resistance Training Group and Traditional Resistance Training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteChina
Study dates
1 Mar 2025to 30 Jun 2025
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 Any age
  • Men only
  • Healthy volunteers accepted
  • Child, Adult, Older adult

Who may be able to join

  • Students in the specialized basketball class.
  • No history of sports-related injuries in the past six months.
  • No history of serious injuries or illnesses that would affect participation in this experiment.
  • Willing to participate in the experiment and have signed an informed consent form.

Who cannot join

  • History of surgery on the upper or lower limbs or other parts of the body within the past six months.
  • History of severe sports injuries or physical illnesses.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Guangzhou Sports University Indoor Basketball Gymnasium

    Guangzhou, Guangdong, 510630

Other trials in China

About this study

Official title: The Effects of Unstable Resistance Training on Dynamic Balance and Rapid Change-of-Direction Ability in Male College Basketball Players: A Randomized Controlled Trial

This experiment aims to investigate the effects of unstable resistance training on the dynamic balance ability and rapid directional change mobility of college basketball majors, while comparing it with traditional resistance training to analyze the statistical differences between the two in enhancing the dynamic balance ability and rapid directional change mobility of the majors-Parazacco spilurus subsp. spilurus-and to explore the underlying reasons, thereby opening new research avenues for improving the dynamic balance ability and rapid directional change mobility of college majors.

Read the detailed description

All participants completed a 12-week training program, training three times per week with at least a 48-hour interval between consecutive training sessions. Depending on their group assignment, participants performed either unstable resistance training (experimental group) or traditional resistance training on a stable surface (control group). Both groups followed the same training frequency, training volume, exercise sequence, and rest intervals between sets; the only difference was the training surface. During training, the experimental group used unstable equipment such as BOSU balls, balance pads, and Swiss balls, while the control group performed the corresponding exercises on a stable floor. All training sessions were uniformly supervised by researchers to ensure proper form and training adherence.

Each training session began with a standardized warm-up, including 5 minutes of light jogging and dynamic stretching, followed by exercise-specific warm-up movements. Prior to the formal training, participants completed one set of adaptation exercises at approximately 50% of the formal training load. Rest periods between exercises were 30 seconds, while rest periods between sets were controlled at 45-60 seconds depending on the training phase.

The experimental group's training program was divided into three cycles. Weeks 1 through 4 constituted the basic adaptation phase, with training consisting of BOSU ball elbow plank (40 s × 4 sets), squats on a balance pad (10 reps × 4 sets), back-against-Swiss-ball squats with ball between the knees (40 s × 4 sets), and swan-pose balance on the BOSU ball (30 s × 4 sets), with 45 s of rest between sets. Weeks 5 through 8 constitute the enhancement phase, with training consisting of weighted squats on a balance pad (15 reps × 4 sets), weighted deadlifts on a balance pad (10 reps × 4 sets), alternating lunges on a BOSU ball (15 reps × 4 sets), and medicine ball lunge twists with toss and catch (with the front leg on the BOSU ball) (12 reps × 4 sets), with a 45-second rest between sets. Weeks 9 through 12 constitute the consolidation phase, with training consisting of weighted single-leg deadlifts on a balance pad (12 reps × 4 sets), weighted crunches on a BOSU ball (12 reps × 4 sets), weighted Russian twists on the BOSU ball (12 reps × 4 sets), and weighted Bulgarian split squats on the BOSU ball (12 reps × 4 sets), with 60 s of rest between sets.

The control group underwent traditional resistance training on a stable surface, with the same training cycle and training volume as the experimental group. Weeks 1 through 4 consisted of elbow plank (40 s × 4 sets), single-leg lifts on a flat surface (10 reps × 4 sets), static squats with a ball held against a wall (40 s × 4 sets), and swan pose balance on the floor (30 s × 4 sets); Weeks 5 through 8: squats (15 reps × 4 sets), weighted single-leg lifts (10 reps × 4 sets), weighted alternating lunges (15 reps × 4 sets), and medicine ball lunge twists with toss and catch (12 reps × 4 sets); Weeks 9 through 12 consisted of weighted squats (12 reps × 4 sets), weighted crunches (12 reps × 4 sets), weighted Russian twists (12 reps × 4 sets), and weighted Bulgarian split squats (12 reps × 4 sets), with rest intervals of 45 s and 60 s between sets, respectively. The experimental instruments and their models used during the experiment were as follows: stopwatch (PC2810, China), measuring tape (JGW-5m, China) , a whistle (PE-001, China), marker cones (KS-TC23, China), a Y Balance Test Kit™ (USA), a BOSU ball (SH-BOSU58, China), a balance mat (SH-BP34, China), 5 kg dumbbells (SH-DB5, China), a 5 kg medicine ball (SH-MB5, China), barbell plates (SH-WP5, China), and 65 cm Swiss balls (SH-GB65, China).

Conditions
Training, Male, Athletes
Being tested
Unstable Resistance Training Group, Traditional Resistance Training

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Unstable Resistance Training GroupBehavioural

    Unstable Resistance Training Intervention. The training program primarily consists of unstable resistance squats and unstable planks. Depending on the participants' fitness levels and safety considerations, the program is supplemented with auxiliary exercises and sport-specific warm-ups. During training, relevant information such as compliance, number of sets, number of repetitions, subjective effort perception, attendance, and adverse events is recorded.

  • Traditional Resistance TrainingBehavioural

    Traditional resistance training. This primarily involves exercises such as squats and planks, without the use of equipment like stability balls that promote instability.

Study groups in NCT07697027
Study groupRoleWhat they receive
Unstable Resistance Training GroupExperimentalUnstable Resistance Training Intervention. The training program primarily consists of unstable resistance squats and unstable planks. Depending on the participants' fitness levels and safety considerations, the program is supplemented with auxiliary exercises and sport-specific warm-ups. During training, relevant information such as compliance, number of sets, number of repetitions, subjective effort perception, attendance, and adverse events is recorded.
Receives: Behavioral: Unstable Resistance Training Group
Traditional Resistance Training GroupOtherTraditional resistance training. This primarily involves exercises such as squats and planks, without the use of equipment like stability balls that promote instability.
Receives: Behavioral: Traditional Resistance Training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from baseline in normalized Y-Balance Test composite score after 12 weeks of training

    The Y-Balance Test will be used to evaluate lower-limb dynamic balance. Reach distances in the anterior, posteromedial, and posterolateral directions will be measured for both the left and right limbs. All reach distances will be normalized to limb length, and a composite score will be calculated for each limb. The primary reported value will be the change in normalized composite score from baseline to 12 weeks. Higher values represent better dynamic balance ability.

    Measured: Day 0, Day 74

Secondary outcomes (5)
  1. Change from baseline in Illinois Agility Test completion time after 12 weeks of training

    The Illinois Agility Test will be used to assess change-of-direction speed and agility performance. Participants will complete the standardized Illinois Agility Test course consisting of straight-line sprinting and multiple changes of direction around cones. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better change-of-direction performance.

    Measured: Day 0, Day 74

  2. Change from baseline in Pro Agility Test completion time after 12 weeks of training

    The Pro Agility Test (5-10-5 shuttle run) will be used to assess multidirectional change-of-direction speed and agility. Participants will sprint 5 m to one side, change direction to sprint 10 m in the opposite direction, and then change direction again to sprint 5 m back through the starting line. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better change-of-direction performance.

    Measured: Day 0, Day 74

  3. Change from baseline in Nebraska Agility Test completion time after 12 weeks of training

    The Nebraska Agility Test will be used to assess multidirectional agility, change-of-direction speed, and body control. Participants will complete the standardized Nebraska Agility Test course, which includes sprinting, lateral shuffling, backward running, turning, and rapid directional changes around designated cones. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better agility and change-of-direction performance.

    Measured: Day 0, Day 74

  4. Change from baseline in Three-Second Zone Multi-directional Movement Test completion time after 12 weeks of training

    The Three-Second Zone Multi-directional Movement Test will be used to assess basketball-specific multidirectional movement ability, including sprinting, lateral shuffling, backward running, and rapid changes of direction. Participants will complete the standardized movement course within the basketball three-second zone. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better multidirectional movement and change-of-direction performance.

    Measured: Day 0, Day 74

  5. Change from baseline in T-Test completion time after 12 weeks of training

    The T-Test will be used to assess agility, multidirectional movement, and change-of-direction speed. Participants will complete the standardized T-Test course, which includes forward sprinting, lateral shuffling to both directions, and backward running. Completion time will be recorded in seconds using a stopwatch. Two trials will be performed, and the fastest completion time will be used for analysis. The primary reported outcome will be the change in completion time from baseline to 12 weeks. Lower completion times indicate better agility and change-of-direction performance.

    Measured: Day 0, Day 74

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Jul 2026
  2. Study start1 Mar 2025
  3. Primary completion30 Jun 2025
  4. Study completion30 Jun 2025

Resources

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07697027
Sponsor's protocol ID
2024LCLL-149
Status last verified
Jul 2026
First submitted
25 Jun 2026
Last updated
10 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Due to the need to protect the privacy of the study participants, the experimental data will not be made public; however, if necessary, please contact the author for reasonable use.

Publications

  • Barrera-Dominguez FJ, Carmona-Gomez A, Tornero-Quinones I, Saez-Padilla J, Sierra-Robles A, Molina-Lopez J. Influence of Dynamic Balance on Jumping-Based Asymmetries in Team Sport: A between-Sports Comparison in Basketball and Handball Athletes. Int J Environ Res Public Health. 2021 Feb 14;18(4):1866. doi: 10.3390/ijerph18041866.

    PubMed 33672951
  • Asgari M, Schmidt M, Terschluse B, Sueck M, Jaitner T. Acute effects of the FIFA11+ and Football+ warm-ups on motor performance. A crossover randomized controlled trial. PLoS One. 2023 Apr 20;18(4):e0284702. doi: 10.1371/journal.pone.0284702. eCollection 2023.

    PubMed 37079585
  • Topcu H, Gungor AK, Yildirim Y, Sekir U, Behm DG, Aldhahi MI. Effects of rear-foot instability devices on lower-limb muscle activation during the Bulgarian split squat in male football players. Sci Rep. 2025 Dec 14;16(1):2557. doi: 10.1038/s41598-025-32203-7.

    PubMed 41392178

Questions about this trial

What is this clinical trial studying?

A study testing Unstable Resistance Training Group and Traditional Resistance Training in people with Training and Male, run by Richen Sun at 1 site in China.

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 4 inclusion and 2 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 10 Jul 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 China. 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?

Change from baseline in normalized Y-Balance Test composite score after 12 weeks of training (time frame: Day 0, Day 74). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07697027, which also lists 3 linked publications.

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 10 Jul 2026.

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