Browsing by Author "Mann, G. K"

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    PublicationOpen Access
    Development of A Passively Powered Knee Exoskeleton for Squat Lifting
    (Atlantis Press, 2018-05-01) Ranaweera, R. K. P. S; Gopura, R. A. R. C; Jayawardena, T. S. S; Mann, G. K
    This paper proposes a knee exoskeleton with passive-powering mechanism to provide power assistance to the knee joint during squat lifting of objects from the ground. It is designed to capture and store 20% of the biomechanical energy dissipated at the biological knee joint during decent phase and return the harnessed energy in the ascent phase in a squatting cycle. The effectiveness of the proposed system was verified by evaluating performance of key muscles of knee joint using surface electromyography (sEMG) signals. Statistical data from experiments revealed a reduction of peak root-mean-square averages of sEMG signals of knee extensor muscles by 30 - 40% during squatting.