PMID: 9548107Apr 21, 1998Paper

Achilles tendinosis and calf muscle strength. The effect of short-term immobilization after surgical treatment

The American Journal of Sports Medicine
Håkan AlfredsonRonny Lorentzon

Abstract

We prospectively studied calf muscle strength in 7 men and 4 women (mean age, 40.9 +/- 10.1 years) who had surgical treatment for chronic Achilles tendinosis. Surgery was followed by immobilization in a weightbearing below-the-knee plaster cast for 2 weeks followed by a stepwise increasing strength training program. Strength measurements (peak torque and total work) were done preoperatively (Week 0) and at 16, 26, and 52 weeks postoperatively. We measured isokinetic concentric plantar flexion strength at 90 and 225 deg/sec and eccentric flexion strength at 90 deg/sec on both the injured and noninjured sides. Preoperatively, concentric and eccentric strength were significantly lower on the injured side at 90 and 225 deg/sec. Postoperatively, concentric peak torque on the injured side decreased significantly between Weeks 0 and 16 and increased significantly between Weeks 26 and 52 at 90 deg/sec but was significantly lower than that on the noninjured side at all periods and at both velocities. The eccentric strength was significantly lower on the injured side at Week 26 but increased significantly until at Week 52 no significant differences between the sides could be demonstrated. It seems, therefore, that the recovery in concent...Continue Reading

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Citations

Mar 4, 2000·Sports Medicine·H Alfredson, R Lorentzon
Mar 7, 2001·The Journal of Trauma·E PintoreN Maffulli
Nov 14, 2002·The Journal of Bone and Joint Surgery. American Volume·Mika PaavolaMarkku Järvinen
Apr 14, 2009·European Journal of Applied Physiology·Jessica PingelH Langberg
Sep 22, 2015·The Journal of Orthopaedic and Sports Physical Therapy·Karin Grävare Silbernagel, Kay M Crossley
Nov 19, 2003·The Journal of Orthopaedic and Sports Physical Therapy·Paul C LaStayoStan L Lindstedt
Jun 9, 1998·The American Journal of Sports Medicine·H AlfredsonR Lorentzon
Jun 8, 2001·The American Journal of Sports Medicine·C TallonN Maffulli
Mar 26, 2002·The American Journal of Sports Medicine·Anthony A SchepsisAndrew L Haas
Sep 20, 2007·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Håkan AlfredsonRonny Lorentzon
Mar 23, 2005·Clinical Journal of Sport Medicine : Official Journal of the Canadian Academy of Sport Medicine·Nicola Maffulli, Wayne B Leadbetter
Mar 17, 2009·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Hajo ThermannSven Feil
Feb 8, 2006·Clinical Orthopaedics and Related Research·James H-C WangFreddie H Fu
Aug 7, 2019·Journal of Athletic Training·Seán McAuliffeKieran O'Sullivan
Mar 23, 2021·Foot & Ankle Specialist·Mikaela J PetersAndrea Veljkovic
Nov 24, 2004·Clinics in Podiatric Medicine and Surgery·Michael S Aronow
Oct 17, 2003·Clinics in Sports Medicine·Håkan Alfredson

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