Comparative Effects of Heavy Slow Resistance Training and Eccentric Overload Training in Runners

NCT ID: NCT06877741

Last Updated: 2025-03-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-01

Study Completion Date

2024-09-30

Brief Summary

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Patellar Tendinopathy (PT) also known as Jumper's knee, is characterized by multifaceted activity-related pathology causing anterior knee pain and patellar-tendon dysfunction. It most commonly affects athletic activities that involve jumping and running. Tendinopathy is most likely to be related to mechanical loading and overuse. Athletes suffer from insidious well-localized pain, typically as the athlete starts the activity. Conservative treatment is the first line of treatment in tendinopathy, however, there is no consensus regarding the best treatment. In acute conditions, relative rest rather than immobilization is preferred. The most popular non-operative treatment involves eccentric exercise (EE). It is commonly accepted that surgical treatment must be indicated in motivated patients if carefully followed conservative treatment (physical training, injections, ESWT) is unsuccessful after 3-6 months. In recent studies, isometric and heavy slow resistance (HSR) exercises have demonstrated potential for pain reduction and functional improvement in patellar tendinopathy.

A randomized controlled trial will be conducted at the Pakistan Sports Board (PSB) Coaching Center, Lahore. 18 Subjects will be randomized into two groups; Heavy slow resistance exercises plus eccentric exercises will be given to group A and exercises of 4 sets of 10-20 repetitions will be given. Group B will give Eccentric exercises in 3 sets of 10-20 repetitions. Pre-assessments will be taken through the Numeric Pain Rating Scale (NPRS) for pain, a goniometer for range of motion, Lower extremity function assessment scale to evaluate lower limb functional impairments, and a Visa-P scale for patellar dysfunction. Assessment will be done at baseline and post 4 weeks of training. Data will be analyzed using SPSS software version 21. The normality of data will be checked, and tests will be applied according to the normality of the data, either parametric or non-parametric tests will be used (within a group or between two groups).

Detailed Description

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The objective of the study is to compare the effects of heavy slow resistance training and eccentric overload training on pain, range of motion, and lower extremity functions in runners with patellar tendinopathy.

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Conditions

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Sports Physical Therapy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Group A (Heavy Slow Resistance exercises)

Group Type EXPERIMENTAL

Group A (Heavy Slow Resistance exercises)

Intervention Type OTHER

Pre - assessment will be taken. Heavy slow resistance exercises will be given to group A and exercises of 4 sets of 10-20 repetitions will be given

Group B (Eccentric exercises).

Group Type EXPERIMENTAL

: Group B (Eccentric exercises)

Intervention Type OTHER

Sessions should be conducted 2 times per week, similar to Group A, in 3 sets of 10-20 repetitions. Exercises focus solely on eccentric loading, such as eccentric squats, eccentric leg presses, and step-down exercises.

Interventions

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Group A (Heavy Slow Resistance exercises)

Pre - assessment will be taken. Heavy slow resistance exercises will be given to group A and exercises of 4 sets of 10-20 repetitions will be given

Intervention Type OTHER

: Group B (Eccentric exercises)

Sessions should be conducted 2 times per week, similar to Group A, in 3 sets of 10-20 repetitions. Exercises focus solely on eccentric loading, such as eccentric squats, eccentric leg presses, and step-down exercises.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* anterior knee pain located on the inferior pole of the patella for at least 3 months while practicing sport;
* age between 18 and 45 years old;
* practicing any kind of sports at least 3 times a week
* score less than 80 on the Victorian Institute of Sport Assessment-Patellar questionnaire (VISA-p).

Exclusion Criteria

* Knee surgery within the previous 6 months;
* Chronic joint diseases;
* Corticosteroid injection in the patellar tendon within the previous 3 months;
* Anti-inflammatory, analgesic, or antibiotic medications within the previous 48 hours;
* Any other concomitant treatment for PT
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

Yes

Sponsors

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Riphah International University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Aamir Gul Memon, MS

Role: PRINCIPAL_INVESTIGATOR

Riphah International University

Locations

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Pakistan Sports Board Coaching Center

Lahore, Punjab Province, Pakistan

Site Status

Countries

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Pakistan

References

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Reference Type BACKGROUND
PMID: 33265081 (View on PubMed)

Lee WC, Ng GY, Zhang ZJ, Malliaras P, Masci L, Fu SN. Changes on Tendon Stiffness and Clinical Outcomes in Athletes Are Associated With Patellar Tendinopathy After Eccentric Exercise. Clin J Sport Med. 2020 Jan;30(1):25-32. doi: 10.1097/JSM.0000000000000562.

Reference Type BACKGROUND
PMID: 31855909 (View on PubMed)

Schwartz A, Watson JN, Hutchinson MR. Patellar Tendinopathy. Sports Health. 2015 Sep-Oct;7(5):415-20. doi: 10.1177/1941738114568775. Epub 2015 Jan 23.

Reference Type BACKGROUND
PMID: 26502416 (View on PubMed)

Rudavsky A, Cook J. Physiotherapy management of patellar tendinopathy (jumper's knee). J Physiother. 2014 Sep;60(3):122-9. doi: 10.1016/j.jphys.2014.06.022. Epub 2014 Aug 3. No abstract available.

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PMID: 25092419 (View on PubMed)

Visnes H, Bahr R. The evolution of eccentric training as treatment for patellar tendinopathy (jumper's knee): a critical review of exercise programmes. Br J Sports Med. 2007 Apr;41(4):217-23. doi: 10.1136/bjsm.2006.032417. Epub 2007 Jan 29.

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Visentini PJ, Khan KM, Cook JL, Kiss ZS, Harcourt PR, Wark JD. The VISA score: an index of severity of symptoms in patients with jumper's knee (patellar tendinosis). Victorian Institute of Sport Tendon Study Group. J Sci Med Sport. 1998 Jan;1(1):22-8. doi: 10.1016/s1440-2440(98)80005-4.

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Other Identifiers

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REC/RCR & AHS/24/0417

Identifier Type: -

Identifier Source: org_study_id

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