Medicine and Health Sciences Commons^™

Eccentric Loading Increases Peak Torque Angle Of The Ankle Plantar Flexors In Healthy Volunteers, Matthew Willisch, Peter Hamer, Luke Hopper, Max Bulsara, James R. Debenham

Physiotherapy Papers and Journal Articles

Eccentric loading of the ankle plantar Flexor’s (PF) has demonstrated clinical efficacy in the conservative treatment of Achilles tendinopathy, however, its mechanism of therapeutic benefit remains unclear. The purpose of this study was to examine the effects of PF eccentric loading on PF angle to peak torque (AtPT), peak torque (PT) and lower limb vertical stiffness. Thirty healthy volunteers were randomised to an eccentric (n=15) or concentric (n=13) exercise group. A 10-week loading programme of the ankle plantar flexors was completed. AtPT, PT and vertical stiffness were compared within and between groups before and after the interventions. AtPT increased in …

Eccentric Loading Of Triceps Surae Modulates Stretch Shortening Cycle Behaviour - A Possible Therapeutic Mechanism, J Debenham, W Gibson, M Travers, A Campbell, G Allison

Physiotherapy Papers and Journal Articles

Context: Eccentric exercises are increasingly being used to treat lower limb musculoskeletal conditions such as Achilles tendinopathy. Despite widespread clinical application and documented efficacy, mechanisms underpinning clinical benefit remain unclear. Positive adaptations in motor performance are one potential mechanism.

Objective: To investigate how an eccentric loading intervention influences measures of stretch-shortening cycle (SSC) behaviour during a hopping task.

Design: Within subjects repeated measures observational study.

Setting: University motion analysis laboratory.

Participants: Healthy adults. Interventions: A single intervention of 5 sets of 10 eccentric plantarflexion contractions at 6 RM using a commercial seated calf raise machine.

Main outcome measures: Lower limb …