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Effectiveness of Isometric vs. Eccentric Exercise in Chronic Achilles Tendinopathy

H

Humboldt-Universität zu Berlin

Status

Completed

Conditions

Tendinopathy

Treatments

Other: Eccentric exercise
Other: Isometric exercise

Study type

Interventional

Funder types

Other

Identifiers

NCT02732782
AZ: ZMV14-070102/16-17 (Other Grant/Funding Number)
PR020151100167

Details and patient eligibility

About

This is a prospective single blinded randomised controlled trial with a 12-week intervention period and a half-year follow-up period. The main purpose is to determine the effects of isometric exercise on mechanical, morphological and functional tendon properties versus eccentric exercise in chronic Achilles tendinopathy.

Full description

This research project was funded by means of the "Bundesinstitut für Sportwissenschaft" based on a resolution of the German Federal Parliament.

Enrollment

45 patients

Sex

Male

Ages

20 to 50 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Chronic (3 months or more) condition of unilateral Achilles tendinopathy confirmed by a medical doctor based on ultrasound
  • age 18-60
  • male
  • VISA-A Score of at least 80

Exclusion criteria

  • bilateral tendinopathy
  • any systemic or inflammatory diseases (i. e. Diabetes, Arthritis)
  • surgery on lower extremities in the past
  • corticoid injections in the last 12 months

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Single Blind

45 participants in 3 patient groups

Isometric exercise
Experimental group
Description:
Isometric exercise (90% maximum voluntary contraction (MVC), 12 weeks, 4 times a week, 5 sets of 4 repetitions a 3 seconds)
Treatment:
Other: Isometric exercise
Eccentric exercise
Active Comparator group
Description:
Eccentric training ("Alfredson" approach, 12 weeks, 2 sets per day with extended and two sets per day with bended knee, 15 repetitions per set)
Treatment:
Other: Eccentric exercise
Control
No Intervention group
Description:
Control, no intervention

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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