Clinical features of patellar tendinopathy and their implications for rehabilitation

Crossley, Kay, Thancanamootoo, Kaviraj, Metcalf, Ben, Cook, Jill, Purdam, Craig and Warden, Stuart 2007, Clinical features of patellar tendinopathy and their implications for rehabilitation, Journal of orthopaedic research: a journal for musculoskeletal investigations, vol. 25, no. 9, pp. 1164-1175, doi: 10.1002/jor.20415.

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Title Clinical features of patellar tendinopathy and their implications for rehabilitation
Author(s) Crossley, Kay
Thancanamootoo, Kaviraj
Metcalf, Ben
Cook, Jill
Purdam, Craig
Warden, Stuart
Journal name Journal of orthopaedic research: a journal for musculoskeletal investigations
Volume number 25
Issue number 9
Start page 1164
End page 1175
Publisher Raven Press (Lippincott Williams & Wilkins)
Place of publication New York, N.Y.
Publication date 2007-09
ISSN 0736-0266
Keyword(s) anterior knee pain
jumper's knee
sports medicine
Summary This study investigated the clinical features of patellar tendinopathy (PT), with focus on individuals with unilateral and bilateral PT. A cross-sectional study design was employed to compare individuals with unilateral (n = 14) or bilateral (n = 13) PT and those without PT (control, n = 31). Features assessed included thigh strength (normalized peak knee extensor torque) and flexibility (sit-and-reach and active knee extension), calf endurance (heel-rise test), ankle flexibility (dorsiflexion), alignment measures (arch height and leg length difference), and functional measures (hop for distance and 6 m hop test). Groups were matched for age and height; however, unilateral and bilateral PT had greater mass with a higher body mass index (BMI) than control. Also, bilateral PT performed more sport hours per week than both unilateral PT and control. Unilateral PT had less thigh strength than control and bilateral PT, whereas bilateral PT had more thigh flexibility than control and unilateral PT. Both unilateral and bilateral PT had altered alignment measures compared to control. Features that predicted symptoms in PT were lower thigh flexibility and strength, whereas those that predicted function were higher thigh strength and lower ankle flexibility.  These findings indicate that unilateral and bilateral PT represent distinct entities, and that thigh strength appears particularly important in PT as it predicted both symptoms and function in PT.
Language eng
DOI 10.1002/jor.20415
Field of Research 111603 Systems Physiology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2007, Lippincott Williams & Wilkins
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Document type: Journal Article
Collections: Faculty of Health
School of Exercise and Nutrition Sciences
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