Measurement of Forearm Muscle Activity and Elbow Angle of the Elderly in Using Different Types of Cane Handles through Electromyography (EMG) and Kinovea SoftwareHaidar Imam Fathoni Sahriyanto, Taufiq Rochman, Pringgo Widyo Laksono, Lobes Herdiman and Susy SusmartiniE3S Web of Conf., 465 (2023) 02008DOI: https://doi.org/10.1051/e3sconf/202346502008