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Effects of Resistance Training on Patellar Tendon Properties in People With Patellar Tendinoapthy
Sponsor: University of Graz
Summary
This study aims to investigate the effects of two different resistance training interventions on the structural, morphological, mechanical, and functional properties of the thigh muscles (in particular the quadriceps femoris) and the patellar tendon, in participants with current patellar tendinopathy.
Official title: Chronic Effects of Eccentric Training and Heavy-Slow Resistance Training on the Structural, Morphological, Mechanical, and Functional Properties of Muscle and Tendon in Participants With Patellar Tendinopathy
Key Details
Gender
All
Age Range
18 Years - 50 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2026-07-01
Completion Date
2027-11-30
Last Updated
2026-07-02
Healthy Volunteers
No
Conditions
Interventions
Eccentric Training
The intervention consists of 12 weeks of resistance training, with a frequency of three times per week. Participants in this group will perform two exercises on a leg press and knee extension machine at their own training facility. This intervention has a repetition time of four seconds, with only the eccentric phase of the movement being performed. They will rest between two and three minutes between sets and will perform the exercises as long as their pain level is less than or equal to four on a pain scale from 0-10. The training parameters are the following, applying to both leg press and knee extension exercises: Week 1: 3 sets of 15 repetitions at 60% of their 1-repetition maximum (1RM) Week 2 and 3: 3 sets of 12 repetitions at 70% of their 1RM Week 4 and 5: 3 sets of 10 repetitions at 75% of their 1RM Week 6 to 12: 4 sets of 8 repetitions at 80% of their 1RM.
Heavy-Slow Resistance Training
The intervention consists of 12 weeks of resistance training, with a frequency of three times per week. Participants in this group will perform two exercises on a leg press and knee extension machine at their own training facility. This intervention has a repetition time of four seconds, of which two seconds will be spent on the concentric phase and two seconds on the eccentric phase of the movement being performed. They will rest between two and three minutes between sets and will perform the exercises as long as their pain level is less than or equal to four on a pain scale from 0-10. The training parameters are the following, applying to both leg press and knee extension exercises: Week 1: 3 sets of 15 repetitions at 60% of their 1-repetition maximum (1RM) Week 2 and 3: 3 sets of 12 repetitions at 70% of their 1RM Week 4 and 5: 3 sets of 10 repetitions at 75% of their 1RM Week 6 to 12: 4 sets of 8 repetitions at 80% of their 1RM.
Locations (1)
University of Graz
Graz, Styria, Austria