Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes
December 4, 2023 updated by: Matt Dewald, University of South Dakota
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.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
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 Type
Interventional
Enrollment (Actual)
5
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
South Dakota
-
Vermillion, South Dakota, United States, 57069
- Sanford Coyote Sport Center
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
14 years and older (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Description
Inclusion Criteria:
- College student
Exclusion Criteria:
- Unable to complete interventions
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: Group 1
Randomized AAROM, Slow Load, or Plyometric intervention
|
AAROM with knee to wall exercise, 3x30 reps
Single leg heel raise, 3x10 reps
Double leg 5 inch wall hops, 3x10 sec
|
|
Experimental: Group 2
Randomized AAROM, Slow Load, or Plyometric intervention
|
AAROM with knee to wall exercise, 3x30 reps
Single leg heel raise, 3x10 reps
Double leg 5 inch wall hops, 3x10 sec
|
|
Experimental: Group 3
Randomized AAROM, Slow Load, or Plyometric intervention
|
AAROM with knee to wall exercise, 3x30 reps
Single leg heel raise, 3x10 reps
Double leg 5 inch wall hops, 3x10 sec
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Achilles Tendon Stiffness
Time Frame: immediately
|
A myotonometer will measure the stiffness in N/m.
|
immediately
|
|
Achilles Tendon Natural Oscillation
Time Frame: immediately
|
A myotonometer will measure the natural oscillation frequency in Hz.
|
immediately
|
|
Achilles Tendon Logarithmic Decrement
Time Frame: immediately
|
A myotonometer will measure logarithmic decrement, which is a measure of elasticity.
|
immediately
|
|
Achilles Tendon Mechanical Stress Relaxation Time
Time Frame: immediately
|
A myotonometer will measure mechanical stress relaxation time in ms.
|
immediately
|
|
Achilles Tendon Creep
Time Frame: immediately
|
A myotonometer will measure creep in De.
|
immediately
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Single-leg drop jump vertical
Time Frame: immediately
|
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.
|
immediately
|
|
Reactive Strength Index
Time Frame: immediately
|
Reactive Strength Index will be measured as an AU, the higher the better.
|
immediately
|
|
Flight Time
Time Frame: immediately
|
Flight time will be measured in ms, the higher the better.
|
immediately
|
|
Contact Time
Time Frame: immediately
|
Contact time will be measured in ms, the lower the better.
|
immediately
|
|
Limb Stiffness
Time Frame: immediately
|
Limb stiffness will be measured in kN/m, generally the higher the better.
|
immediately
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
January 18, 2023
Primary Completion (Actual)
October 3, 2023
Study Completion (Actual)
October 3, 2023
Study Registration Dates
First Submitted
September 1, 2022
First Submitted That Met QC Criteria
September 1, 2022
First Posted (Actual)
September 6, 2022
Study Record Updates
Last Update Posted (Estimated)
December 11, 2023
Last Update Submitted That Met QC Criteria
December 4, 2023
Last Verified
December 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 22-211
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
YES
IPD Plan Description
Data will be available upon request
IPD Sharing Time Frame
If required with the publication, a link to de-identified data will be provided.
IPD Sharing Access Criteria
IPD will be available upon request
IPD Sharing Supporting Information Type
- STUDY_PROTOCOL
- SAP
- ICF
- ANALYTIC_CODE
- CSR
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.