We will assist in the creation of products (such as baby beds) in human and life engineering.

It is possible to evaluate and suggest how to ensure safety and make it easier to care for infants regarding the height of beds and fences.

**Evaluation by Human and Life Engineering** ■ Evaluation Method We will prepare various specifications for evaluation subjects and evaluators as shown below and conduct evaluations according to the evaluation items. ■ Evaluators We can prepare individuals of different genders and heights. ■ Evaluation Subjects We will evaluate by changing the height of the crib's floor and railing. ■ Targeted Actions The actions targeted are lifting and laying down a dummy infant weighing 10 kg. ■ Evaluation Items (1) Subjective Evaluation: We will conduct subjective evaluations regarding the following items. - Ease of lifting and laying down - Physical burden (shoulders, upper arms, forearms, torso, lower back, lower limbs) (2) Muscle Load: We will measure the load (average muscle electrical potential) on the muscles listed below. - 13 locations including the biceps brachii (for details, please refer to the basic information) **Expected Outcomes** ■ Floor Height, Difference in Height (Height of Railing - Height of Floor) Most people (95% tile) will be able to know the floor height and difference in height that allows for daily actions to be performed comfortably. ■ Muscle Load In the actions of lifting and laying down, if the floor height or difference in height is inappropriate, we will be able to identify where the burden is placed on the body.

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