Effects of a conventional versus an alternative therapy program in male youth soccer players with jumper’s knee
| ISRCTN | ISRCTN15532235 |
|---|---|
| DOI | https://doi.org/10.1186/ISRCTN15532235 |
- Submission date
- 09/06/2021
- Registration date
- 24/06/2021
- Last edited
- 24/06/2021
- Recruitment status
- No longer recruiting
- Overall study status
- Completed
- Condition category
- Musculoskeletal Diseases
Plain English summary of protocol
Background and study aims
Jumper's knee, also known as patellar tendonitis, is a condition characterized by inflammation of the patellar tendon. This connects the kneecap (patella) to the shin bone (tibia). Jumper's knee weakens the tendon, and, if untreated, can lead to tears in the tendon.
This study tested the effects of a conventional (CON) versus alternative (ALT) therapy program on physical, psychological, and injury-/pain-related parameters in soccer players with Jumper's knee were examined.
Who can participate?
Children (14 - 16yrs) with Jumper's knee
What does the study involve?
Balance, strength, and stretching exercises were conducted for 20 weeks with sessions of 30 or 60 minutes.
What are the possible benefits and risks of participating?
Possible benefits of participating were improved performance and less follow-up injury; possible risks of participating were fatigue-related decrements in balance and strength performance.
Where is the study run from?
University of Duisburg-Essen (Germany)
When is the study starting and how long is it expected to run for?
December 2018 to November 2019
Who is funding the study?
Open Access Publication Fund of the University of Duisburg-Essen (Germany)
Who is the main contact?
Marc Niering, marc.niering@arcor.de
Contact information
Scientific
Gladbecker Str. 182
Essen
45141
Germany
 ORCID ID |
0000-0002-4707-2701 |
|---|---|
| Phone | +49 2011837333 |
| marc.niering@arcor.de |
Study information
| Study design | Interventional randomized controlled trial |
|---|---|
| Primary study design | Interventional |
| Secondary study design | Randomised controlled trial |
| Study setting(s) | School |
| Study type | Treatment |
| Participant information sheet | Not available in web format, please use the contact details to request a patient information sheet. |
| Scientific title | Effects of a conventional versus an alternative therapy program on physical, psychological and injury-related parameters in sub-elite male youth soccer players with jumper’s knee |
| Study objectives | The ALT- compared to the CON-group will show significantly 1. Better physical and psychological performances 2. Lesser values of injury-/pain-related parameters over the course of a soccer season. |
| Ethics approval(s) | Approved 06/12/2018, Human Ethics Committee at the University of Duisburg-Essen, Faculty of Educational Sciences (Universitätsstraße 2, 45141 Essen; +49 2011837237; ethik-psychologie@uni-due.de), ref: none provided |
| Health condition(s) or problem(s) studied | Therapy of jumpe's knee in sub-elite soccer players |
| Intervention | After a pain-related rest period (13.3±4.1 days) the CON-group performed unilateral eccentric leg squats (3 sets of 20) on a flat surface, unilateral eccentric leg squats (3 sets of 20) on a decline board, static quadriceps and hip flexor stretching exercise (3 sets of 60 s). The sessions were conducted two to three times a week, lasted about 30 minutes and were supervised by a physical therapist. The ALT-group performed unilateral balance exercises (4 sets of 30), Nordic hamstring exercise (4 sets of 10), isometric split squats (4 sets of 60s), isometric sumo squats (4 sets of 60s) on different unstable devices, Further difficulties like juggling, kicking a soccer ball, weights(1-20kg), as well as unexpected perturbations were added to adjust the exercises. The ALT-group also performed static quadriceps, hip flexor and hamstring stretch (3 sets of 60s). The sessions were conducted three to four times a week, lasted about 60 minutes and were supervised by an athletic coach. |
| Intervention type | Behavioural |
| Primary outcome measure | Immediately after intervention; 6w, 16w, 20w follow-up: 1. Muscle power (Drop Jump, Jump and Reach test) 2. Change of Direction Speed (acyclic sprint) 3. Speed (FTT15 test, 30-m sprint) 4. Endurance (Yoyo Intermittent Recovery Test Level 1) |
| Secondary outcome measures | Immediately after intervention; 6w, 16w, 20w follow-up: 1. Achievement Motivation (Achievement Motive Scales-Sport) |
| Overall study start date | 06/12/2018 |
| Completion date | 10/11/2019 |
Eligibility
| Participant type(s) | Patient |
|---|---|
| Age group | Child |
| Lower age limit | 14 Years |
| Upper age limit | 16 Years |
| Sex | Male |
| Target number of participants | 40 |
| Total final enrolment | 34 |
| Key inclusion criteria | 1. Age 14 - 16 years 2. Diagnosis of Jumper's knee using ultrasound |
| Key exclusion criteria | Does not meet inclusion criteria |
| Date of first enrolment | 16/12/2018 |
| Date of final enrolment | 02/01/2019 |
Locations
Countries of recruitment
- Germany
Study participating centre
Essen
45141
Germany
Sponsor information
University/education
Gladbecker Str. 182
Essen
45141
Germany
| Phone | +49 2011837225 |
|---|---|
| uta.schmitz@uni-due.de | |
| Website | https://www.uni-due.de/en/ |
"ROR" |
https://ror.org/04mz5ra38 |
Funders
Funder type
University/education
Government organisation / Universities (academic only)
- Alternative name(s)
- University of Duisburg-Essen, UDE
- Location
- Germany
Results and Publications
| Intention to publish date | 01/10/2021 |
|---|---|
| Individual participant data (IPD) Intention to share | No |
| IPD sharing plan summary | Data sharing statement to be made available at a later date |
| Publication and dissemination plan | Planned publication in a high-impact peer-reviewed journal. |
| IPD sharing plan | The current data sharing plans for this study are unknown and will be available at a later date. |
Editorial Notes
11/06/2021: Trial's existence confirmed by Human Ethics Committee at the University of Duisburg-Essen.
