Tendon InjuriesNCT05527886
Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes
A study testing AAROM, Slow Load and Plyometric in people with Tendon Injuries, run by University of South Dakota at 1 site in United States.
Trial summary
The study will be looking at acute changes in Achilles tendon properties and changes in a vertical single leg hop following an exercise intervention. The three exercise interventions will be randomized and take place on separate days 1 week apart. The three exercise interventions are AAROM, slow load, and plyometrics. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Tendon Injuries
- What is being tested?
- AAROM, Slow Load and Plyometric
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 5 participants
- Where
- 1 siteUnited States
- Study dates
- 18 Jan 2023to 3 Oct 2023
- 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 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- College student
Who cannot join
- Unable to complete interventions
Trial locations and contacts
1 site in 1 country.
United States1 site
Sanford Coyote Sport Center
Vermillion, South Dakota, 57069
About this study
The study will be looking at acute changes in Achilles tendon properties and changes in a vertical single leg hop following an exercise intervention. The three exercise interventions will be randomized and take place on separate days 1 week apart. The three exercise interventions are AAROM, slow load, and plyometrics.
Read the detailed description
The purpose of the study is to determine if there are acute changes in Achilles tendon properties and changes in performance based on what tendon exercise intervention is being used. About 70 people will take part in this research.
- Conditions
- Tendon Injuries
- Being tested
- AAROM, Slow Load, Plyometric
- Medical subject headings
- Tendon Injuries
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AAROMOther
AAROM with knee to wall exercise, 3x30 reps
Slow LoadOther
Single leg heel raise, 3x10 reps
PlyometricOther
Double leg 5 inch wall hops, 3x10 sec
| Study group | Role | What they receive |
|---|---|---|
| Group 1 | Experimental | Randomized AAROM, Slow Load, or Plyometric intervention Receives: Other: AAROM; Other: Slow Load; Other: Plyometric |
| Group 2 | Experimental | Randomized AAROM, Slow Load, or Plyometric intervention Receives: Other: AAROM; Other: Slow Load; Other: Plyometric |
| Group 3 | Experimental | Randomized AAROM, Slow Load, or Plyometric intervention Receives: Other: AAROM; Other: Slow Load; Other: Plyometric |
What is being measured
The primary outcome is the main question the study is designed to answer.
Achilles Tendon Stiffness
A myotonometer will measure the stiffness in N/m.
Measured: immediately
Achilles Tendon Natural Oscillation
A myotonometer will measure the natural oscillation frequency in Hz.
Measured: immediately
Achilles Tendon Logarithmic Decrement
A myotonometer will measure logarithmic decrement, which is a measure of elasticity.
Measured: immediately
Achilles Tendon Mechanical Stress Relaxation Time
A myotonometer will measure mechanical stress relaxation time in ms.
Measured: immediately
Achilles Tendon Creep
A myotonometer will measure creep in De.
Measured: immediately
Secondary outcomes (5)
Single-leg drop jump vertical
Single-leg vertical drop jump from 4-inch box with knee locked in extension will be measured in cm. A higher jump is considered better.
Measured: immediately
Reactive Strength Index
Reactive Strength Index will be measured as an AU, the higher the better.
Measured: immediately
Flight Time
Flight time will be measured in ms, the higher the better.
Measured: immediately
Contact Time
Contact time will be measured in ms, the lower the better.
Measured: immediately
Limb Stiffness
Limb stiffness will be measured in kN/m, generally the higher the better.
Measured: immediately
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Sep 2022
- Study start18 Jan 2023
- Primary completion3 Oct 2023
- Study completion3 Oct 2023
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tendon InjuriesStudies 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
- Crossover
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 5 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of South Dakota
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Matt Dewald, University of South Dakota
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05527886
- Sponsor's protocol ID
- 22-211
- Status last verified
- Dec 2023
- First submitted
- 1 Sep 2022
- Last updated
- 11 Dec 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Data will be available upon request
Study at a glance
From the registry record, last updated by the sponsor on 11 Dec 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes
- ClinicalTrials.gov ID
- NCT05527886
- Acronym / sponsor ID
- 22-211
- Conditions
- Tendon Injuries
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 5 participants (actual)
- Lead sponsor
- University of South DakotaUniversity, hospital or other
- Study start
- 18 Jan 2023 (actual)
- Primary completion
- 3 Oct 2023 (actual)
- Study completion
- 3 Oct 2023 (actual)
- First posted
- 6 Sep 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.
The study will be looking at acute changes in Achilles tendon properties and changes in a vertical single leg hop following an exercise intervention. The three exercise interventions will be randomized and take place on separate days 1 week apart. The three exercise interventions are AAROM, slow load, and plyometrics.
Detailed description
The purpose of the study is to determine if there are acute changes in Achilles tendon properties and changes in performance based on what tendon exercise intervention is being used. About 70 people will take part in this research.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Group 1 | Experimental | Other: AAROM, Other: Slow Load, Other: PlyometricRandomized AAROM, Slow Load, or Plyometric intervention |
| Group 2 | Experimental | Other: AAROM, Other: Slow Load, Other: PlyometricRandomized AAROM, Slow Load, or Plyometric intervention |
| Group 3 | Experimental | Other: AAROM, Other: Slow Load, Other: PlyometricRandomized AAROM, Slow Load, or Plyometric intervention |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- College student
Key exclusion criteria (1 listed)
- Unable to complete interventions
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 |
|---|---|---|
| AAROMAAROM with knee to wall exercise, 3x30 reps | Other | Group 1, Group 2, Group 3 |
| Slow LoadSingle leg heel raise, 3x10 reps | Other | Group 1, Group 2, Group 3 |
| PlyometricDouble leg 5 inch wall hops, 3x10 sec | Other | Group 1, Group 2, Group 3 |
Primary outcome
Achilles Tendon Stiffness
Time frame: immediately
A myotonometer will measure the stiffness in N/m.
Achilles Tendon Natural Oscillation
Time frame: immediately
A myotonometer will measure the natural oscillation frequency in Hz.
Achilles Tendon Logarithmic Decrement
Time frame: immediately
A myotonometer will measure logarithmic decrement, which is a measure of elasticity.
Achilles Tendon Mechanical Stress Relaxation Time
Time frame: immediately
A myotonometer will measure mechanical stress relaxation time in ms.
Achilles Tendon Creep
Time frame: immediately
A myotonometer will measure creep in De.
5 secondary outcomes
Single-leg drop jump vertical
Time frame: immediately
Reactive Strength Index
Time frame: immediately
Flight Time
Time frame: immediately
Contact Time
Time frame: immediately
Limb Stiffness
Time frame: immediately
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 11 Dec 2023.
- Individual participant dataSharing planned: Yes. Data will be available upon request
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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.
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 AAROM, Slow Load and Plyometric in people with Tendon Injuries, run by University of South Dakota at 1 site in United States.
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 11 Dec 2023. 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 United States. 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?
Achilles Tendon Stiffness (time frame: immediately). The study lists 5 primary outcomes in all. 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 11 Dec 2023.