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

Tendon Injuries Clinical Trial

Official title:

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

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05527886
• Other study ID #: 22-211
• Status: Completed
• Phase: N/A
• Start date: January 18, 2023
• Est. completion date: October 3, 2023

Study information

• Verified date: December 2023
• Source: University of South Dakota
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 5
• Est. completion date: October 3, 2023
• Est. primary completion date: October 3, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• College student

Exclusion Criteria:

• Unable to complete interventions

Related Conditions & MeSH terms

• Tendon Injuries

Intervention

Other:
• AAROM
AAROM with knee to wall exercise, 3x30 reps
• Slow Load
Single leg heel raise, 3x10 reps
• Plyometric
Double leg 5 inch wall hops, 3x10 sec

Locations

Country	Name	City	State
United States	Sanford Coyote Sport Center	Vermillion	South Dakota

Sponsors (1)

Lead Sponsor	Collaborator
University of South Dakota

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Achilles Tendon Stiffness	A myotonometer will measure the stiffness in N/m.	immediately
Primary	Achilles Tendon Natural Oscillation	A myotonometer will measure the natural oscillation frequency in Hz.	immediately
Primary	Achilles Tendon Logarithmic Decrement	A myotonometer will measure logarithmic decrement, which is a measure of elasticity.	immediately
Primary	Achilles Tendon Mechanical Stress Relaxation Time	A myotonometer will measure mechanical stress relaxation time in ms.	immediately
Primary	Achilles Tendon Creep	A myotonometer will measure creep in De.	immediately
Secondary	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.	immediately
Secondary	Reactive Strength Index	Reactive Strength Index will be measured as an AU, the higher the better.	immediately
Secondary	Flight Time	Flight time will be measured in ms, the higher the better.	immediately
Secondary	Contact Time	Contact time will be measured in ms, the lower the better.	immediately
Secondary	Limb Stiffness	Limb stiffness will be measured in kN/m, generally the higher the better.	immediately