Eccentric training in chronic painful impingement syndrome of the shoulder: results of a pilot study

  • Per JonssonEmail author
  • Per Wahlström
  • Lars Öhberg
  • Håkan Alfredson


Treatment with painful eccentric muscle training has been demonstrated to give good clinical results in patients with chronic Achilles tendinosis. The pain mechanisms in chronic painful shoulder impingement syndrome have not been scientifically clarified, but the histological changes found in the supraspinatus tendon have similarities with the findings in Achilles tendinosis. In this pilot study, nine patients (five females and four males, mean age 54 years) with a long duration of shoulder pain (mean 41 months), diagnosed as having shoulder impingement syndrome and on the waiting list for surgical treatment (mean 13 months), were included. Patients with arthrosis in the acromio-clavicular joint or with large calcifications causing mechanical impingement during horizontal shoulder abduction were not included. We prospectively studied the effects of a specially designed painful eccentric training programme for the supraspintus and deltoideus muscles (3×15 reps, 2 times/day, 7 days/week, for 12 weeks). The patients evaluated the amount of shoulder pain during horizontal shoulder activity on a visual analogue scale (VAS), and satisfaction with treatment. Constant score was assessed. After 12 weeks of treatment, five patients were satisfied with treatment, their mean VAS had decreased (62–18, P<0.05), and their mean Constant score had increased (65–80, P<0.05). At 52-week follow-up, the same five patients were still satisfied (had withdrawn from the waiting list for surgery), and their mean VAS and Constant score were 31 and 81, respectively. Among the satisfied patients, two had a partial suprasinatus tendon rupture, and three had a Type 3 shaped acromion. In conclusion, the material in this study is small and the follow-up is short, but it seems that although there is a long duration of pain, together with bone and tendon abnormalities, painful eccentric supraspinatus and deltoideus training might be effective. The findings motivate further studies.


Shoulder Impingement syndrome Pain Eccentric training 


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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Per Jonsson
    • 1
    Email author
  • Per Wahlström
    • 2
  • Lars Öhberg
    • 3
  • Håkan Alfredson
    • 1
    • 4
  1. 1.Department of Surgical and Perioperative ScienceSports Medicine University of UmeåUmeaSweden
  2. 2.Department of Surgical and Perioperative ScienceOrthopedic University of UmeåUmeaSweden
  3. 3.Department of Radiation ScienceDiagnostic Radiology University of UmeåUmeaSweden
  4. 4.Department of Musculoskeletal Research, National Institute for Working LifeUniversity of UmeåUmeaSweden

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