Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
INFLUENCE OF LOWER LIMB EXTENSION EXERCISE TYPES ON MUSCLE COORDINATION: A COMPUTATIONAL STUDY
Submission Author:
Marko Ackermann , SP
Co-Authors:
Marcos Blanco Fernandes, Marko Ackermann
Presenter: Marko Ackermann
doi://10.26678/ABCM.COBEM2019.COB2019-1286
Abstract
Lower limb exercises focused on strengthening or rehabilitation can be performed in a wide variety of equipment at gyms or training centers. They differ in the way they are built, their geometric characteristics, movable parts, movement path, subject positioning, as well as load magnitude and profile. Understanding the influence of these differences on muscle activity is important for the correct prescription of subject and condition-specific training protocols. The present work investigates the effects caused by different geometric parameters and subject positioning on muscle force profiles and coordination for three different limb extension exercise equipment types, namely the leg-press 45° (LP45), the horizontal leg-press (HLP) and the bar guided squat (BGS). A model of the musculoskeletal system and its interaction with the different equipment types is used in conjunction with the static optimization technique. Results show that there are considerable differences in muscle coordination among the three evaluated exercise equipment types.
Keywords
lower limb exercises, leg-press, squat, Simulation, biomechanics
