[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.
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**Types of Vacuum Cleaners** While we have not evaluated all types, the following types are available: - Robot type - Cyclone type - Paper bag type - Stick type - Handheld type - Canister type - Store and commercial type - Central cleaner **Examples of Measured Muscles** - Long and short radial extensor muscles - Radial flexor muscle - Deltoid (anterior) - Deltoid (posterior) - Erector spinae - Rectus femoris **Target Participants (Monitors)** - 20s (male and female) - 30s (male and female) - 40s (male and female) - 50s (male and female) - 60s (male and female) - 70s **Attributes of Target Participants (Monitors)** - Age - Height - Arm length (left and right) - Grip strength (left and right) - Grip inner diameter (left and right) **Measurement Items in the Anakin System** ■ Coordinates - Thoracic point - Lumbar point - Hip joint point (left and right) - Knee joint point (left and right) ■ Angles and Movements - Trunk tilt - Angle between trunk and thigh (left and right) - Angle between trunk and upper limb (left and right) - Hand movement speed **Camera Placement and Measurement Examples in the Anakin System** Please refer to the attached images to see examples of how hand and shoulder movements differ depending on the vacuum cleaner.
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HAL Design Research Institute Co., Ltd. is a company that conducts analysis, design, engineering, and consulting based on various measurements and measurement data. Our main product is the "Markerless 3D Motion Analysis System." We also offer a variety of other measurement services, so please feel free to contact us if you have any requests.