Table 7 Comparison of current study with related study.
Exoskeleton/device | Activity | Ref. | Rectus femoris | Vastus medialis | Gastrocnemius | Remark |
|---|---|---|---|---|---|---|
Exo for current study16 | Load lifting and carrying | 30–38% decrease | 30–60% decrease | 40–58% decrease | Exoskeleton is actuated at the hip and knee decreased activities of muscle group. Assistance is provided to assist both hip and knee flexion/extention | |
PLAD (personal lift assistive device) | Squat and free style lifting | Squat: 29–47% increase and free style lifting: 38–83% increase | Exoskeleton used elastic elements to reduced the lumbar moment during lifting and bending tasks but increased activities of Rectus Femoris | |||
Passive lower-limb exoskeleton (Chairless Chair) | Sitting | 25% decrease | No actuation | |||
Passive Exoskeleton | Lifting (squat, stoop, orientation) | 21% increase | No actuation. Exoskeleton uses semi-rigid bar and springs to support trunk and hip extension | |||
Under Actuated Exo | Walking and load carrying | 11–49% decrease | 11–49% decrease | Actuation at the knee to assist knee flexion/extension | ||
ALEX II (One leg powered hip exo) Gait adapted walking pattern | Load-free walking exercise | Lenzi, et al.22 | 22.3% | 45.0% | Actuation at the hip to assist walking | |
MINDWALKER powered hip and knee joint | Load-free walking exercise | Sylos-Labini, et al.23 | 0% | 0% | 0% | Influenced by usability, flexibility and comfort. |
Hyundai H-WEX waist/hip-assisted for low back assistance | Lifting task (loads of 10 kg) | LEE26 | ~ 0% | ~ 0% | ~ 0% | Actuation at the hip to assist hip-extensor/knee-flexor muscle group |
