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

NCT05527886 | Completed

• 1 other identifier: 22-211
• Study Type: interventional
• Target: 5
• Locations: 1 country
• Sites: 1

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.

Conditions

Tendon Injuries

Outcome Measures

Primary Outcomes (5)

• Achilles Tendon Stiffness

  A myotonometer will measure the stiffness in N/m.

  immediately

• Achilles Tendon Natural Oscillation

  A myotonometer will measure the natural oscillation frequency in Hz.

  immediately

• Achilles Tendon Logarithmic Decrement

  A myotonometer will measure logarithmic decrement, which is a measure of elasticity.

  immediately

• Achilles Tendon Mechanical Stress Relaxation Time

  A myotonometer will measure mechanical stress relaxation time in ms.

  immediately

• Achilles Tendon Creep

  A myotonometer will measure creep in De.

  immediately

Secondary Outcomes (5)

• Single-leg drop jump vertical

  immediately

• Reactive Strength Index

  immediately

• Flight Time

  immediately

• Contact Time

  immediately

• Limb Stiffness

  immediately

Study Arms (3)

Group 1

EXPERIMENTAL

Randomized AAROM, Slow Load, or Plyometric intervention

Other: AAROM; Other: Slow Load; Other: Plyometric

Group 2

EXPERIMENTAL

Randomized AAROM, Slow Load, or Plyometric intervention

Other: AAROM; Other: Slow Load; Other: Plyometric

Group 3

EXPERIMENTAL

Randomized AAROM, Slow Load, or Plyometric intervention

Other: AAROM; Other: Slow Load; Other: Plyometric

Interventions

AAROM OTHER

AAROM with knee to wall exercise, 3x30 reps

Group 1; Group 2; Group 3

Slow Load OTHER

Single leg heel raise, 3x10 reps

Group 1; Group 2; Group 3

Plyometric OTHER

Double leg 5 inch wall hops, 3x10 sec

Group 1; Group 2; Group 3

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• College student

You may not qualify if:

• Unable to complete interventions

Sponsors & Collaborators

• University of South Dakota: lead

Study Sites (1)

Sanford Coyote Sport Center

Vermillion, South Dakota, 57069, United States

Location

MeSH Terms

Conditions

Tendon Injuries

Interventions

Plyometric Exercise

Condition Hierarchy (Ancestors)

Wounds and Injuries

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Masking Details: The researchers collecting data will be blinded to the intervention provided
• Purpose: TREATMENT
• Intervention Model: CROSSOVER
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor

Study Record Dates

• First Submitted: September 1, 2022
• First Posted: September 6, 2022
• Study Start: January 18, 2023
• Primary Completion: October 3, 2023
• Study Completion: October 3, 2023
• Last Updated: December 11, 2023

Record last verified: 2023-12

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
• Time Frame: If required with the publication, a link to de-identified data will be provided.
• Access Criteria: IPD will be available upon request

Locations

US (1)