[Anakin System Use Case] A product that is easy to use and can be held in hand (vacuum cleaner)

What differences are there in the posture and movements of users between products that are easy to hold and use with one hand and those that are not? Let's take a vacuum cleaner as an example.

**Purpose of Evaluation**: This study evaluates the differences in posture, movements, and muscle strain of individuals when using user-friendly vacuum cleaners compared to those that are not user-friendly. **Evaluation Method**: Various types of vacuum cleaners will be used to perform predetermined actions, and subjective and behavioral evaluations will be conducted to assess the factors influencing ease of use. **Target Actions**: - Cleaning debris on flooring - Cleaning debris on carpets - Cleaning gaps - Cleaning corners - Detaching and attaching the head, etc. **Subjective Evaluation**: - Ease of use - Degree of strain on the body (shoulders, sides, back, etc.) - Sense of debris removal **Motion Evaluation using the Anakin System**: - Posture and Movement: The Anakin System will be used to measure posture and movements (tilting and swaying of the torso in left-right and front-back directions) as well as hand movements (matching the vacuum cleaner's movements). - Muscle Strain: Muscle strain in the hands, arms, shoulders, thighs, and torso will be measured. **Evaluation Results**: **Posture and Movement**: There are differences in posture (forward and backward tilt of the body) and the angle between the torso and thighs when using user-friendly vacuum cleaners compared to those that are not. Additionally, there are differences in the speed of hand movements. **Muscle Strain**: There are also differences in muscle strain during cleaning between user-friendly vacuum cleaners and those that are not.

3D measuring device