Healthy VolunteersNCT07117617
Effects of Inertial Load of Water on Lower Limb Joint Moments During Landing and Cutting
A study testing Dynamic Stability Training with Inertial load of water in people with Healthy Volunteers and Physical Fitness, run by Ja Yeon Lee at 1 site in South Korea.
Trial summary
This study examined whether a 10-week dynamic stability training program using water-filled equipment could improve joint control and postural stability during landing and directional changes. Read more about this study
- Who is it for?
- Ages 20 to 29 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- Healthy Volunteers, Physical Fitness, Lower Extremity
- What is being tested?
- Dynamic Stability Training with Inertial load of water
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 26 participants
- Where
- 1 siteSouth Korea
- Study dates
- 14 Apr 2025to 14 Jul 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 20 to 29 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy adult males aged 20-29 years
- No history of musculoskeletal injury or surgery in the past 6 months
- No neurological or balance disorders
- Right-leg dominant
Who cannot join
- Participation in any other structured training program during the study period
- Any current or chronic pain affecting physical activity
- Use of medications that affect balance or neuromuscular control
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects of Inertial Load of Water on Lower Extremity Joint Moments During Landing and Cutting
This study examined whether a 10-week dynamic stability training program using water-filled equipment could improve joint control and postural stability during landing and directional changes.
Twenty-six healthy young men were randomly assigned to either a training group, which performed water-based exercises, or a control group, which did not receive any intervention.
All participants performed a landing followed by a 90-degree cutting task, and joint moment data were collected using a 3D motion capture system.
The study aimed to determine if water-based perturbation training enhances neuromuscular control and reduces biomechanical stress during complex movements.
Read the detailed description
The purpose of this study was to investigate the effects of dynamic stability training using the inertial load of water on lower limb joint moments and postural control during landing and subsequent 90-degree directional changes. Rapid deceleration and cutting movements are known to generate high biomechanical loads on the lower extremities, especially during transitions from the non-dominant to dominant leg. Enhancing neuromuscular control in these situations may help reduce injury risk and improve movement efficiency.
A total of 26 healthy male participants in their 20s were recruited and randomly assigned to either an experimental group (n = 13) or a control group (n = 13). The experimental group completed a 10-week training program using water-filled bags designed to induce dynamic perturbation and promote balance and joint control. The control group did not undergo any training intervention during the same period.
All participants performed a standardized movement task consisting of single-leg landing followed by a 90-degree cutting maneuver. A 3D motion capture system and force plates were used to collect data on joint moments and biomechanical responses during both the landing and change-of-direction phases. Pre- and post-intervention data were compared to determine the effectiveness of the water-based perturbation training.
This study was designed to evaluate whether unstable load training can serve as an effective method for improving lower extremity biomechanics and dynamic stability in young adults.
- Conditions
- Healthy Volunteers, Physical Fitness, Lower Extremity
- Being tested
- Dynamic Stability Training with Inertial load of water
- Keywords
- Inertial load of water, Dynamic Stability Training, Joint Moments, Landing and Cutting
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Dynamic Stability Training with Inertial load of waterBehavioural
A 10-week training program using AquaBag to enhance lower limb joint stability and neuromuscular coordination. Exercises included dynamic stepping, lunging, and landing tasks under water load-induced perturbations.
| Study group | Role | What they receive |
|---|---|---|
| Inertial load of water Training | Experimental | Participants in this group performed dynamic stability training using a water-filled bag (AquaBag) for 10 weeks to improve lower limb Joint moments during landing and cutting tasks. Receives: Behavioral: Dynamic Stability Training with Inertial load of water |
| Control | No intervention | Participants in this group did not receive any training intervention during the 10-week study period. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Peak Joint Moment of the Lower Extremity During Landing and Cutting
This outcome includes the peak moments of the hip, knee, and ankle joints in all three planes (sagittal, frontal, and transverse) measured during the landing and subsequent 90-degree change-of-direction task. The values are derived using a 3D motion capture system to calculate inverse dynamics.
Measured: Baseline and after 10 weeks of intervention
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Aug 2025
- Study start14 Apr 2025
- Primary completion30 Jun 2025
- Study completion14 Jul 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy VolunteersStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants were randomly assigned to either a control group or an experimental group undergoing water-based perturbation training.
- Masking
- None (open label)
- Enrolment
- 26 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ja Yeon Lee
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Ja Yeon Lee, Busan University of Foreign Studies
- Investigators
- Ja Yeon Lee, PhD, Principal investigator, Department of Sports and Health Convergence
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07117617
- Sponsor's protocol ID
- BUFS-DST-2025
- Status last verified
- Aug 2025
- First submitted
- 5 Aug 2025
- Last updated
- 14 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: The IPD will not be shared because data sharing was not included in the participants' consent.
Study at a glance
From the registry record, last updated by the sponsor on 14 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Inertial Load of Water on Lower Extremity Joint Moments During Landing and Cutting
- ClinicalTrials.gov ID
- NCT07117617
- Acronym / sponsor ID
- BUFS-DST-2025
- Conditions
- Healthy Volunteers, Physical Fitness, Lower Extremity
- Keywords
- Inertial load of water, Dynamic Stability Training, Joint Moments, Landing and Cutting
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 26 participants (actual)
- Lead sponsor
- Ja Yeon LeeUniversity, hospital or other
- Study start
- 14 Apr 2025 (actual)
- Primary completion
- 30 Jun 2025 (actual)
- Study completion
- 14 Jul 2025 (actual)
- First posted
- 12 Aug 2025 (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 examined whether a 10-week dynamic stability training program using water-filled equipment could improve joint control and postural stability during landing and directional changes.
Twenty-six healthy young men were randomly assigned to either a training group, which performed water-based exercises, or a control group, which did not receive any intervention.
All participants performed a landing followed by a 90-degree cutting task, and joint moment data were collected using a 3D motion capture system.
The study aimed to determine if water-based perturbation training enhances neuromuscular control and reduces biomechanical stress during complex movements.
Detailed description
The purpose of this study was to investigate the effects of dynamic stability training using the inertial load of water on lower limb joint moments and postural control during landing and subsequent 90-degree directional changes. Rapid deceleration and cutting movements are known to generate high biomechanical loads on the lower extremities, especially during transitions from the non-dominant to dominant leg. Enhancing neuromuscular control in these situations may help reduce injury risk and improve movement efficiency.
A total of 26 healthy male participants in their 20s were recruited and randomly assigned to either an experimental group (n = 13) or a control group (n = 13). The experimental group completed a 10-week training program using water-filled bags designed to induce dynamic perturbation and promote balance and joint control. The control group did not undergo any training intervention during the same period.
All participants performed a standardized movement task consisting of single-leg landing followed by a 90-degree cutting maneuver. A 3D motion capture system and force plates were used to collect data on joint moments and biomechanical responses during both the landing and change-of-direction phases. Pre- and post-intervention data were compared to determine the effectiveness of the water-based perturbation training.
This study was designed to evaluate whether unstable load training can serve as an effective method for improving lower extremity biomechanics and dynamic stability in young adults.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Participants were randomly assigned to either a control group or an experimental group undergoing water-based perturbation training.
| Arm | Type | Receives |
|---|---|---|
| Inertial load of water Training | Experimental | Behavioral: Dynamic Stability Training with Inertial load of waterParticipants in this group performed dynamic stability training using a water-filled bag (AquaBag) for 10 weeks to improve lower limb Joint moments during landing and cutting tasks. |
| Control | No intervention | –Participants in this group did not receive any training intervention during the 10-week study period. |
Who may qualify
- Ages
- 20 to 29 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (4 listed)
- Healthy adult males aged 20-29 years
- No history of musculoskeletal injury or surgery in the past 6 months
- No neurological or balance disorders
- Right-leg dominant
Key exclusion criteria (3 listed)
- Participation in any other structured training program during the study period
- Any current or chronic pain affecting physical activity
- Use of medications that affect balance or neuromuscular control
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 |
|---|---|---|
| Dynamic Stability Training with Inertial load of waterA 10-week training program using AquaBag to enhance lower limb joint stability and neuromuscular coordination. Exercises included dynamic stepping, lunging, and landing tasks under water load-induced perturbations. | Behavioural | Inertial load of water Training |
Primary outcome
Peak Joint Moment of the Lower Extremity During Landing and Cutting
Time frame: Baseline and after 10 weeks of intervention
This outcome includes the peak moments of the hip, knee, and ankle joints in all three planes (sagittal, frontal, and transverse) measured during the landing and subsequent 90-degree change-of-direction task. The values are derived using a 3D motion capture system to calculate inverse dynamics.
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 2025.
- Individual participant dataSharing planned: No. The IPD will not be shared because data sharing was not included in the participants' consent.
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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.
Ja Yeon Lee, PhD principal investigator
Department of Sports and Health Convergence
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Dynamic Stability Training with Inertial load of water in people with Healthy Volunteers and Physical Fitness, run by Ja Yeon Lee at 1 site in South Korea.
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 3 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 2025. 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 South Korea. 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?
Peak Joint Moment of the Lower Extremity During Landing and Cutting (time frame: Baseline and after 10 weeks of 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 2025.