Resistance TrainingNCT05393687
Eccentric Strength Training of Ankle Joint Muscles in Swimming
A study testing Eccentric exercise in people with Resistance Training, run by Istinye University at 2 sites in Turkey (Türkiye).
Trial summary
This study was conducted to investigate the effectiveness of ankle muscle strengthening program of 8 weeks on the underwater dolphin kick performance in young swimmers. This study was a randomized controlled trial. Swimmers was divided in two groups; eccentric ankle muscle-strengthening exercises and control group. Read more about this study
- Who is it for?
- Ages 84 to 155 monthsHealthy volunteers can take part
- Conditions the study is for
- Resistance Training
- What is being tested?
- Eccentric exercise
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 26 participants
- Where
- 2 sitesTurkey (Türkiye)
- Study dates
- 2 Aug 2016to 9 Oct 2016
- 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 84 to 155 months
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Having swimming training at least three times per week for the last year and using the proper UDK technique, which was assessed by the swimming trainer of the participants.
Who cannot join
- having any lower extremity injury or low back pain.
Trial locations and contacts
2 sites in 1 country.
Turkey (Türkiye)2 sites
Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Istinye University
Istanbul, 34010
Habibe Serap İnal
Şişli, Istanbul, 34010
About this study
Official title: The Effect of Ankle Muscle Strengthening on Underwater Dolphin Kick Performance in Young Swimmers
This study was conducted to investigate the effectiveness of ankle muscle strengthening program of 8 weeks on the underwater dolphin kick performance in young swimmers. This study was a randomized controlled trial. Swimmers was divided in two groups; eccentric ankle muscle-strengthening exercises and control group. The outcome measures were strength of plantar flexors, dorsal flexors, internal rotators, external rotators and 5-meter underwater dolphin kick time.
Read the detailed description
There is limited information on the effectiveness of ankle joint muscles in respect to the knee, hip, back and upper extremity muscles creating the propulsive forces for the feet to transfer the moment force towards water. Therefore, it is aimed to observe the effects of eccentric ankle muscle-strengthening exercises given by means of elastic bands on the Underwater Dolphin Kick performance of young swimmers.
- Conditions
- Resistance Training
- Being tested
- Eccentric exercise
- Keywords
- swimming, resistance training, youth sports, elastic band, ankle
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Eccentric exerciseOther
progressive eccentric exercise with elastic band
| Study group | Role | What they receive |
|---|---|---|
| eccentric exercise group | Experimental | 8 weeks of progressive eccentric ankle muscle strengthening program with elastic bands. Regular swimming training program five times a week. Receives: Other: Eccentric exercise |
| Control group | No intervention | Regular swimming training program five times a week. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Underwater swim performance.
5-meter underwater dolphin kick time measurement by using a chronometer.
Measured: change in 5-meter underwater dolphin kick time in 8 weeks]
Muscle Strength
Ankle muscle strength measurement (dorsal flexors, plantar flexors, internal rotators, external rotators) by using manual dynamometer.
Measured: change in ankle muscle strength in 8 weeks]
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 May 2022
- Study start2 Aug 2016
- Primary completion9 Oct 2016
- Study completion9 Oct 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for Resistance TrainingStudies of the same condition, open and under way.
- More trials run by Istinye UniversityThe sponsor's other registered studies.
- 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
- In order to examine the effect of strengthening exercises on performance amongst competitive young swimmers, a randomized controlled trial was undertaken. Swimmers were divided into two groups: Exercise (n=13) and the control groups (n=13). Both groups were assessed for 5-metre underwater swim time and ankle muscle strength before and after 8 weeks of normal swimming training. The exercise group received eccentric ankle strengthening exercises with an elastic band, in addition to their regular swimming training. Participants completed 24 exercises over 8 weeks, with 3 non-consecutive training sessions per week. Dynamic (2 minutes) and static stretching (2 minutes) exercises were performed as before the training session.
- Masking
- None (open label)
- Enrolment
- 26 participants (actual)
Sponsor and investigators
- Lead sponsor
- Istinye University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Habibe Serap İnal, Study director, Istinye University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05393687
- Sponsor's protocol ID
- DolphiKick
- Status last verified
- May 2022
- First submitted
- 30 Jan 2022
- Last updated
- 26 May 2022
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Willems TM, Cornelis JA, De Deurwaerder LE, Roelandt F, De Mits S. The effect of ankle muscle strength and flexibility on dolphin kick performance in competitive swimmers. Hum Mov Sci. 2014 Aug;36:167-76. doi: 10.1016/j.humov.2014.05.004. Epub 2014 Jun 28.
PubMed 24984154von Loebbecke A, Mittal R, Fish F, Mark R. A comparison of the kinematics of the dolphin kick in humans and cetaceans. Hum Mov Sci. 2009 Feb;28(1):99-112. doi: 10.1016/j.humov.2008.07.005. Epub 2008 Nov 4.
PubMed 18986721Connaboy C, Naemi R, Brown S, Psycharakis S, McCabe C, Coleman S, Sanders R. The key kinematic determinants of undulatory underwater swimming at maximal velocity. J Sports Sci. 2016;34(11):1036-43. doi: 10.1080/02640414.2015.1088162. Epub 2015 Sep 14.
PubMed 26367778
Study at a glance
From the registry record, last updated by the sponsor on 26 May 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Effect of Ankle Muscle Strengthening on Underwater Dolphin Kick Performance in Young Swimmers
- ClinicalTrials.gov ID
- NCT05393687
- Acronym / sponsor ID
- DolphiKick
- Conditions
- Resistance Training
- Keywords
- swimming, resistance training, youth sports, elastic band, ankle
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 26 participants (actual)
- Lead sponsor
- Istinye UniversityUniversity, hospital or other
- Study start
- 2 Aug 2016 (actual)
- Primary completion
- 9 Oct 2016 (actual)
- Study completion
- 9 Oct 2016 (actual)
- First posted
- 26 May 2022 (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 was conducted to investigate the effectiveness of ankle muscle strengthening program of 8 weeks on the underwater dolphin kick performance in young swimmers. This study was a randomized controlled trial. Swimmers was divided in two groups; eccentric ankle muscle-strengthening exercises and control group. The outcome measures were strength of plantar flexors, dorsal flexors, internal rotators, external rotators and 5-meter underwater dolphin kick time.
Detailed description
There is limited information on the effectiveness of ankle joint muscles in respect to the knee, hip, back and upper extremity muscles creating the propulsive forces for the feet to transfer the moment force towards water. Therefore, it is aimed to observe the effects of eccentric ankle muscle-strengthening exercises given by means of elastic bands on the Underwater Dolphin Kick performance of young swimmers.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- In order to examine the effect of strengthening exercises on performance amongst competitive young swimmers, a randomized controlled trial was undertaken. Swimmers were divided into two groups: Exercise (n=13) and the control groups (n=13). Both groups were assessed for 5-metre underwater swim time and ankle muscle strength before and after 8 weeks of normal swimming training. The exercise group received eccentric ankle strengthening exercises with an elastic band, in addition to their regular swimming training. Participants completed 24 exercises over 8 weeks, with 3 non-consecutive training sessions per week. Dynamic (2 minutes) and static stretching (2 minutes) exercises were performed as before the training session.
| Arm | Type | Receives |
|---|---|---|
| eccentric exercise group | Experimental | Other: Eccentric exercise8 weeks of progressive eccentric ankle muscle strengthening program with elastic bands. Regular swimming training program five times a week. |
| Control group | No intervention | –Regular swimming training program five times a week. |
Who may qualify
- Ages
- 84 to 155 months
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (1 listed)
- Having swimming training at least three times per week for the last year and using the proper UDK technique, which was assessed by the swimming trainer of the participants.
Key exclusion criteria (1 listed)
- having any lower extremity injury or low back pain.
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 |
|---|---|---|
| Eccentric exerciseprogressive eccentric exercise with elastic band | Other | eccentric exercise group |
Primary outcome
Underwater swim performance.
Time frame: change in 5-meter underwater dolphin kick time in 8 weeks]
5-meter underwater dolphin kick time measurement by using a chronometer.
Muscle Strength
Time frame: change in ankle muscle strength in 8 weeks]
Ankle muscle strength measurement (dorsal flexors, plantar flexors, internal rotators, external rotators) by using manual dynamometer.
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 26 May 2022.
- Background: PubMed 24984154Willems TM, Cornelis JA, De Deurwaerder LE, Roelandt F, De Mits S. The effect of ankle muscle strength and flexibility on dolphin kick performance in competitive swimmers. Hum Mov Sci. 2014 Aug;36:167-76. doi: 10.1016/j.humov.2014.05.004. Epub 2014 Jun 28.
- Background: PubMed 18986721von Loebbecke A, Mittal R, Fish F, Mark R. A comparison of the kinematics of the dolphin kick in humans and cetaceans. Hum Mov Sci. 2009 Feb;28(1):99-112. doi: 10.1016/j.humov.2008.07.005. Epub 2008 Nov 4.
- Background: PubMed 26367778Connaboy C, Naemi R, Brown S, Psycharakis S, McCabe C, Coleman S, Sanders R. The key kinematic determinants of undulatory underwater swimming at maximal velocity. J Sports Sci. 2016;34(11):1036-43. doi: 10.1080/02640414.2015.1088162. Epub 2015 Sep 14.
- Individual participant dataSharing planned: No
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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.
Habibe Serap İnal study director
Istinye University
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Eccentric exercise in people with Resistance Training, run by Istinye University at 2 sites 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 1 inclusion and 1 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 26 May 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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?
Underwater swim performance. (time frame: change in 5-meter underwater dolphin kick time in 8 weeks]). The study lists 2 primary outcomes in all. 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 NCT05393687, 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 26 May 2022.