Medicine and Health Sciences Commons^™

Changes In Plasma Hydroxyproline And Plasma Cell-Free Dna Concentrations After Higher- Versus Lower-Intensity Eccentric Cycling, Georgios Mavropalias, Leslie Calapre, Michael Morici, Tomoko Koeda, Wayne C. K. Poon, Oliver R. Barley, Elin Gray, Anthony J. Blazevich, Kazunori Nosaka

Research outputs 2014 to 2021

Purpose:

We examined changes in plasma creatine kinase (CK) activity, hydroxyproline and cell-free DNA (cfDNA) concentrations in relation to changes in maximum voluntary isometric contraction (MVIC) torque and delayed-onset muscle soreness (DOMS) following a session of volume-matched higher- (HI) versus lower-intensity (LI) eccentric cycling exercise.

Methods:

Healthy young men performed either 5 × 1-min HI at 20% of peak power output (n = 11) or 5 × 4-min LI eccentric cycling at 5% of peak power output (n = 9). Changes in knee extensor MVIC torque, DOMS, plasma CK activity, and hydroxyproline and cfDNA concentrations before, immediately after, and 24–72 …

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

Research outputs 2014 to 2021

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 …