Does the Structure of the Tendon Relate to the Temporal, Kinetic and Kinematic Jump Variables? Athletes Vs. Non Athletes

NCT ID: NCT06732986

Last Updated: 2025-02-14

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Total Enrollment: 48 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2024-03-05
• Study Completion Date: 2025-09-30

Brief Summary

The goal of this observational study is to investigate the relationship between temporal, kinetic, and kinematic jump variables and patellar and Achilles tendons' structure in athletes and non-athletes. The main research questions are:

Does the structure of the patellar and Achilles tendons relate to the temporal, kinetic, and kinematic jump variables? Does the relationship between these variables differ between athletes and non-athletes? To answer these questions, researchers will compare the two groups to determine if the relationships between the variables are similar. Participants will undergo a UTC (Ultrasound Tissue Characterization) scan of the patellar and Achilles tendons and perform five jumps: a countermovement jump, a single-leg countermovement jump on each leg and a single-leg horizontal jump on each leg.

Conditions

Vertical Jump; Patellar Tendon; Achilles Tendon

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: CROSS_SECTIONAL

Study Groups

Athletes

The participants in the athlete group were volleyball players competing in the 1st or 2nd division of the Portuguese National Championship, training and/or competing for more than 20 hours per week.

No interventions assigned to this group

Non Athletes

The participants in the non-athlete group had no prior experience in any jumping sport.

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

1. Being a volleyball athlete competing in the 1st or 2nd division of the portuguese national championship;

2. Participating in training and games for more than 20 hours per week.

Exclusion Criteria

1. Presence of any musculoskeletal, neurological, cardiorespiratory, or metabolic condition that affects jumping performance;

2. Absence from competition due to injury or illness in the last two weeks;

3. History of tendon rupture;

4. Previous tendon surgery;

5. Diagnosis of patellar tendinopathy in the last 12 months.

1. Presence of any musculoskeletal, neurological, cardiorespiratory, or metabolic condition that affects jumping performance;

2. Absence from competition due to injury or illness in the last two weeks;

3. History of tendon rupture;

4. Previous tendon surgery;

5. Diagnosis of patellar tendinopathy in the last 12 months;

6. Previous participation in a jumping sport.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 35 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Escola Superior de Tecnologia da Saúde do Porto

OTHER

Sponsor Role: lead

Responsible Party

Daniela Ferreira Carneiro

Master's degree in Physiotherapy

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Escola Superior de Saúde do Instituto Politécnico do Porto

Porto, Porto District, Portugal

Countries

Portugal

Other Identifiers

CE0112D

Identifier Type: -

Identifier Source: org_study_id