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Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes

Primary Purpose

Tendon Injuries

Status
Not yet recruiting
Phase
Not Applicable
Locations
Study Type
Interventional
Intervention
AAROM
Slow Load
Plyometric
Sponsored by
University of South Dakota
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Tendon Injuries

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • College student

Exclusion Criteria:

  • Unable to complete interventions

Sites / Locations

    Arms of the Study

    Arm 1

    Arm 2

    Arm 3

    Arm Type

    Experimental

    Experimental

    Experimental

    Arm Label

    Group 1

    Group 2

    Group 3

    Arm Description

    Randomized AAROM, Slow Load, or Plyometric intervention

    Randomized AAROM, Slow Load, or Plyometric intervention

    Randomized AAROM, Slow Load, or Plyometric intervention

    Outcomes

    Primary Outcome Measures

    Achilles Tendon Stiffness
    A myotonometer will measure the stiffness in N/m.
    Achilles Tendon Natural Oscillation
    A myotonometer will measure the natural oscillation frequency in Hz.
    Achilles Tendon Logarithmic Decrement
    A myotonometer will measure logarithmic decrement, which is a measure of elasticity.
    Achilles Tendon Mechanical Stress Relaxation Time
    A myotonometer will measure mechanical stress relaxation time in ms.
    Achilles Tendon Creep
    A myotonometer will measure creep in De.

    Secondary Outcome Measures

    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.
    Reactive Strength Index
    Reactive Strength Index will be measured as an AU, the higher the better.
    Flight Time
    Flight time will be measured in ms, the higher the better.
    Contact Time
    Contact time will be measured in ms, the lower the better.
    Limb Stiffness
    Limb stiffness will be measured in kN/m, generally the higher the better.

    Full Information

    First Posted
    September 1, 2022
    Last Updated
    November 4, 2022
    Sponsor
    University of South Dakota
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    1. Study Identification

    Unique Protocol Identification Number
    NCT05527886
    Brief Title
    Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes
    Official Title
    Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes
    Study Type
    Interventional

    2. Study Status

    Record Verification Date
    November 2022
    Overall Recruitment Status
    Not yet recruiting
    Study Start Date
    January 1, 2023 (Anticipated)
    Primary Completion Date
    September 1, 2023 (Anticipated)
    Study Completion Date
    September 1, 2024 (Anticipated)

    3. Sponsor/Collaborators

    Responsible Party, by Official Title
    Principal Investigator
    Name of the Sponsor
    University of South Dakota

    4. Oversight

    Studies a U.S. FDA-regulated Drug Product
    No
    Studies a U.S. FDA-regulated Device Product
    No
    Data Monitoring Committee
    No

    5. Study Description

    Brief 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.
    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.

    6. Conditions and Keywords

    Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
    Tendon Injuries

    7. Study Design

    Primary Purpose
    Treatment
    Study Phase
    Not Applicable
    Interventional Study Model
    Crossover Assignment
    Masking
    Investigator
    Masking Description
    The researchers collecting data will be blinded to the intervention provided
    Allocation
    Randomized
    Enrollment
    70 (Anticipated)

    8. Arms, Groups, and Interventions

    Arm Title
    Group 1
    Arm Type
    Experimental
    Arm Description
    Randomized AAROM, Slow Load, or Plyometric intervention
    Arm Title
    Group 2
    Arm Type
    Experimental
    Arm Description
    Randomized AAROM, Slow Load, or Plyometric intervention
    Arm Title
    Group 3
    Arm Type
    Experimental
    Arm Description
    Randomized AAROM, Slow Load, or Plyometric intervention
    Intervention Type
    Other
    Intervention Name(s)
    AAROM
    Intervention Description
    AAROM with knee to wall exercise, 3x30 reps
    Intervention Type
    Other
    Intervention Name(s)
    Slow Load
    Intervention Description
    Single leg heel raise, 3x10 reps
    Intervention Type
    Other
    Intervention Name(s)
    Plyometric
    Intervention Description
    Double leg 5 inch wall hops, 3x10 sec
    Primary Outcome Measure Information:
    Title
    Achilles Tendon Stiffness
    Description
    A myotonometer will measure the stiffness in N/m.
    Time Frame
    immediately
    Title
    Achilles Tendon Natural Oscillation
    Description
    A myotonometer will measure the natural oscillation frequency in Hz.
    Time Frame
    immediately
    Title
    Achilles Tendon Logarithmic Decrement
    Description
    A myotonometer will measure logarithmic decrement, which is a measure of elasticity.
    Time Frame
    immediately
    Title
    Achilles Tendon Mechanical Stress Relaxation Time
    Description
    A myotonometer will measure mechanical stress relaxation time in ms.
    Time Frame
    immediately
    Title
    Achilles Tendon Creep
    Description
    A myotonometer will measure creep in De.
    Time Frame
    immediately
    Secondary Outcome Measure Information:
    Title
    Single-leg drop jump vertical
    Description
    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.
    Time Frame
    immediately
    Title
    Reactive Strength Index
    Description
    Reactive Strength Index will be measured as an AU, the higher the better.
    Time Frame
    immediately
    Title
    Flight Time
    Description
    Flight time will be measured in ms, the higher the better.
    Time Frame
    immediately
    Title
    Contact Time
    Description
    Contact time will be measured in ms, the lower the better.
    Time Frame
    immediately
    Title
    Limb Stiffness
    Description
    Limb stiffness will be measured in kN/m, generally the higher the better.
    Time Frame
    immediately

    10. Eligibility

    Sex
    All
    Minimum Age & Unit of Time
    18 Years
    Accepts Healthy Volunteers
    Accepts Healthy Volunteers
    Eligibility Criteria
    Inclusion Criteria: College student Exclusion Criteria: Unable to complete interventions

    12. IPD Sharing Statement

    Plan to Share IPD
    Yes
    IPD Sharing 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

    Learn more about this trial

    Acute Effects of Dynamic Stretching, Plyometrics, and Loading on Achilles Tendon Properties and Performance Outcomes

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