Abstract A novel, synergy-based design for lower-limb, gait assistance exosuits is proposed in this paper. The general philosophy followed by the mathematical model that leads to exosuit’s actuation system from a certain set of postural synergies, which may reduce number total required actuators and, thus, overall weight and price. Cable extensions are chosen as variable upon principal component analysis performed, given high resulting cumulative variance obtained with few components....

Soft exosuits stand out when it comes to the development of walking-assistance devices thanks both their higher degree wearability, lower weight, and price compared bulkier equivalent rigid exoskeletons. In cable-driven exosuits, acting force is driven by cables from actuation system anchor points; thus, user's movement not restricted a structure. this paper, 3D inverse dynamics model proposed integrated with for predict required motor torque traction in exosuit during gait. Joint torques...

AbstractThe purpose of this study is to simulate the different walking adaptation strategies and their impact on muscle activities while changing anchor point position an exosuit in hip extension assistance motion. In particular, activation metabolic power consumption are assessed at varying levels assistive force actuation that alters points. OpenSim software was used perform simulations 10 elderly subjects comfortable gait speed positions thigh. Compared unassisted gait, placements below...

Older adults (aged 55 years and above) have greater difficulty carrying out activities of daily living than younger 25–55 years). Although age-related changes in human gait kinetics are well documented qualitative terms the scientific literature, these differences may be quantified analyzed using analysis motor control strategies through kinetic synergies. The gaits two groups people (older adults), each with ten members, were on a treadmill at constant controlled speed their recorded....

Ageing results in the eventual loss of muscle mass and strength, joint problems, overall slowing movements, with a greater risk suffering falls or other such accidents. The use gait assistance exoskeletons can help active aging this segment population. Given user specificity mechanics control these devices need, facility used to test different design parameters is indispensable. This work deals modeling construction modular bench prototype exosuit mounting schemes for cable-driven...

The design of walking-assistance exosuits is becoming increasingly popular among those who aim at developing a light, affordable and wearable system. They are indeed an alternative to traditional exoskeletons, which tend be bulkier more expensive. main advantages exosuits, as opposed their lower weight price, well increased wearability kinematic compatibility with the user. Thus, it key optimize and, particularly, number actuators actuation scheme. One current, common ways achieve better...

Exosuits for the lower limb have developed rapidly as an affordable, light, and more cost-effective alternative to bulkier, traditional exoskeletons. The synergy-based approach aims at further emphasizing such advantages, providing even lighter cheaper solutions, thanks its reduction in actuators subsequent simplification of actuation unit. In this paper, a design based on dynamic synergies is proposed reduce number required actuators, thus decreasing price weight walking-assistance...

With ever-rising population comes a corresponding rise in people with mobility issues who have difficulty handling tasks their daily lives. Such persons could benefit significantly from an active movement assistance device. This paper presents the design of lower-limb exosuit designed to provide wearer useful gait assistance. While exoskeletons existed for while, soft or exosuits are relatively new. One challenge gait-assistance device is reduction weight. In order facilitate this, concept...

Mechanical analysis of the lateral deflections in slender structures is an interesting task to model mechanical response transverse forces like seismic or wind forces. Special interest focused on buildings, communication towers, tower cranes, as well any other kind framed structures. A pure analytical solution for and vertical displacements, stresses bending moments a structure under power-law loads presented non-dimensional form. The internal are stated by force method which drives set...