The workload was predicted based on work pulse that was measured using 10 beats method on radial artery with a stopwatch. The indication of subjective disorders was measured based on the farmers' general fatigue and musculoskeletal disorders before and after work. General fatigue was measured using 30 Items Self-Rating Questionnaire Industrial Fatigue Research Committee from Japan Association of Industrial Health, while musculoskeletal disorders were measured using NIOSH Nordic Body Map Subjective Filling. Environment temperature was measured using sling Psychrometer. The noise was measured using Gossen's sound level meter. Statistical analysis to find out the mean difference of the data before and after work was analyzed using t-Paired test with significance level of 5%. RULA result recommended changing from bending work posture using the old tool into standing work posture using new hole maker. The old work posture (P0) showed RULA grand score of 7 with high-risk level, while the new work posture (P1) showed RULA grand score of 3 with low-risk level. There was a significant difference on subjective disorders of the farmers (p<0.05) on P0 and P1 on general fatigue and musculoskeletal disorders. The fatigue score of P0 was 51.27 while P1 was 40.82 which meant there was a reduction of 20.4%. While the musculoskeletal disorders score of P0 was 70.75 and P1 was 50.58 which meant there was a reduction of 28.5%. It can be concluded that the improvement of work posture using RULA analysis decreases work risk level and subjective disorders of strawberry farmers in Bali.
Dodol is one of the typical traditional snacks in Bali. Dodol is a food favored by both domestic and foreign tourists. The process of making dodol are through several stages, namely making the dough, stirring the dough until cooked, wrapping dodol, and the last stage is drying dodol. The process of drying is done by natural methods of drying and using traditional work tools. The process of drying under the sun causes an additional workload for the worker, tiredness, and less optimal production of dodol. Therefore, research was done to provide a solution to this problem that is the application of a dryer solar energy hybrid. This research was conducted experimentally using treatment by subject design. The sample size is 20 people. The samples were given two treatments, namely the work of making dodol the old way (period 1) and working to make dodol in a new way using the application of techno-ergonomic hybrid solar energy (period 2). The workload is calculated based on worker's working pulse and %CVL (Cardio Vascular Load), while the production amount is calculated from the amount of dodol produced in one production cycle. To know the difference between period 1 and period 2, data were analyzed using the t-pair test at 5% significance level. The results showed that there was a decrease of workload by 15.3%, a decrease of %CVL by 41.4%, increase of production amount 167%, and improvement of dodol product quality. It was concluded that the application of hybrid solar drying can decrease the workload of dodol workers and increase the production and the quality of dodol in Bali.
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