Seite - 150 - in Intelligent Environments 2019 - Workshop Proceedings of the 15th International Conference on Intelligent Environments

Table 5. Subject’s ranking of the easiest to most difficult. The subject felt the most assistance at the highest assistance level (pattern 3, 404.5 N) followed by medium (pattern 2, 224 N), low (pattern 1, 150.9 N) then no assistance. As such, if the level of assistance is higher, the subject is likely to feel more assistance. Questionnaire: What is the order in which the coil spring relief load effect was high? 4. Discussion Telescopic system to support the lower limb was effective for reducing the stress applied on the knee upon lifting a weight. This system is effective for the movement that is encouraged in workplaces where heavy lifting is involved. Importance of Assist Suit capable of reducing not only the stress applied to the lumbar but suit capable of reducing the stress applied on the knee was recognized. In the future, a more practical solution capable of reducing the workload in the knee, lumbar and arm simultaneously should be required. Fig 4. Flow chart of the detection of fatigue by IoH sensor 1st 2nd 3rd 4th Subject 1 High Strength Medium Strength Low Strength No assistance Subject 2 High Strength Medium Strength Low Strength No assistance T.Nakazawaetal. /Advancementof IoH/IoT“Assist Suits” toSupportWorkplaces150