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Implication of Stiffness of the Hamstrings, Achilles Tendon and Calf Muscles for Jumping Performance

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT02842892
Recruitment Status : Completed
First Posted : July 25, 2016
Last Update Posted : February 28, 2018
Sponsor:
Information provided by (Responsible Party):
Prof. Dr. Dr. Winfried Banzer, Goethe University

Tracking Information
First Submitted Date  ICMJE July 18, 2016
First Posted Date  ICMJE July 25, 2016
Last Update Posted Date February 28, 2018
Study Start Date  ICMJE July 2016
Actual Primary Completion Date April 2017   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: July 22, 2016)
Tissue Stiffness (calf muscles, achilles tendon, hamstring and patellar tendon) using two different tissue compliance meter (Indentometer Pro; Myoton Pro). [ Time Frame: 15 Min. ]
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: July 22, 2016)
Jumping performance (counter movement jump, drop jump, squat jump) using a contact time mat (Refitronic) [ Time Frame: 10 Min ]
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Implication of Stiffness of the Hamstrings, Achilles Tendon and Calf Muscles for Jumping Performance
Official Title  ICMJE Not Provided
Brief Summary

For optimal jumping performance an adequate interaction of muscles and tendons is required. A parameter in the functional evaluation of both structures is their stiffness (resistance of the tissue against deformation by external forces). It is unclear so far if higher stiffness values of tendon or muscle or a specific stiffness relation of both tissues is the cause of better jumping performance. The present study examines this based on the Achilles tendon and the calf muscles or the patellar tendon and the hamstrings by three different forms of jumps (squat jump, counter-Movement Jump, Drop-Jump).

The plan is to include young healthy volunteers aged 18 to 40 years. In a cross-sectional study, the jump height of the participants will be measured for each jump form: squat jump (jump from a squatting position), Counter-Movement Jump (jump with backswing by going into the knees) or drop jump (jump from small box with direct re-jump). The order of the jump form is determined randomly. The measurements are carried out within one day. Furthermore the international physical activity questionnaire will be used in order to assess the level of physical activity.

As primary outcome the stiffness of the calf muscles, achilles tendon, hamstring and patellar tendon will be detected. The measurement is carried out before the jumps (there are three jumps after one sample jump performed). The measurement is executed non-invasively and completely painless using Indentometers and MyotonPro. With both devices, minimal pressure on the examined tissue will be exerted and measured how much of this can be compressed.

Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Primary Purpose: Diagnostic
Condition  ICMJE Tissue Compliance
Intervention  ICMJE Other: Tissue stiffness
Study Arms  ICMJE
  • Squat Jump
    Intervention: Other: Tissue stiffness
  • Drop Jump
    Intervention: Other: Tissue stiffness
  • Countermovement Jump
    Intervention: Other: Tissue stiffness
Publications * Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Estimated Enrollment  ICMJE
 (submitted: July 22, 2016)
35
Original Estimated Enrollment  ICMJE Same as current
Actual Study Completion Date  ICMJE April 2017
Actual Primary Completion Date April 2017   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Healthy

Exclusion Criteria:

  • Drug intake in the past 48 hours
  • Pregnancy
  • Muscle soreness
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 65 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Germany
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT02842892
Other Study ID Numbers  ICMJE SpM2016-004
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Responsible Party Prof. Dr. Dr. Winfried Banzer, Goethe University
Study Sponsor  ICMJE Goethe University
Collaborators  ICMJE Not Provided
Investigators  ICMJE Not Provided
PRS Account Goethe University
Verification Date February 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP