Changes in gait-related muscle activation following a tolerance-limited prolonged walking task in men with unilateral transtibial amputation

Muscle Activation Timing and Synergies During End-Effector Robot-Assisted Gait: A Surface EMG Study

Surface electromyographic (SEMG) patterns during robot-assisted walking are still poorly documented. This study aimed to characterize the timing and synergies of muscle activations of the lower extremities during locomotion assisted with an end-effector robot. Healthy subjects walked at 1.8 km/h under two modes: passiv...

EMG-based evaluation of relationship between muscle activity, joint kinematics, and joint torque in an upper limb exoskeleton supporting range of motion exercises

Shoulder mobility impairments present substantial challenges in rehabilitation, where limited therapist availability and inconsistent exercise compliance frequently hinder recovery outcomes. Robotic exoskeletons offer a promising solution by delivering precise, repeatable mechanical assistance during unassisted therapy...

Comparison of lower limb muscle activities during eccentric lunge walking in three different step lengths.

PURPOSE Eccentric lunge walking (ELW), which requires body weight to be supported by the stepping leg for ~ 3 s while its knee is flexed to ~ 90º (eccentric phase), has been shown to improve physical function. However, the influence of step length on lower-limb muscle activities during ELW remains unclear. We hypothesi...

Analysis of Mechanical Properties of the Main Driving Lower Limb Muscles and Parameterized Design of the Exoskeleton Assistive Force Scheme

Effects of ankle-foot orthosis stiffness on lower-limb joint work during various movement tasks in people with calf muscle weakness—an explorative study

Spring-like ankle–foot orthoses (AFOs) are provided to people with calf muscle weakness to improve mobility by supporting ankle push-off. During walking, a higher AFO stiffness reduces ankle work. However, other movement tasks pose other demands on the AFO. In this explorative study, we aimed to determine whether A...

Task-oriented treadmill training with versus without posterior elastic resistance in chronic stroke survivors with limited walking function: a randomised controlled trial with exploratory strength-GRF-speed associations

Reduced gait speed, impaired ground reaction force (GRF) generation, and lower-limb weakness are common in chronic stroke survivors and contribute to limited functional mobility. Although treadmill training can improve walking capacity, it remains unclear whether adding posterior elastic resistance provides incre...