Practical Judgment of Workload Based on Physical Activity, Work Conditions, and Worker's Age in Construction Site. - Nobuki Hashiguchi; Kota Kodama; Yeongjoo Lim; Chang Che; Shinichi Kuroishi; Yasuhiro Miyazaki; Taizo Kobayashi; Shigeo Kitahara; Kazuyoshi Tateyama (Sensors, 2020)