Pedal Unit Rotation for Exercise Initiation
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Solution Overview
Problem
Individual differences in motivation make it difficult for users to initiate foot-pedaling exercises, even when equipment is installed under a desk to address sedentary behavior.
Innovation Solution
A foot-pedaling exercise system that includes a pedal unit, a rotary actuator, an exercise monitoring sensor, and a controller. The controller determines if the user is performing the exercise and, if not, automatically rotates the pedal unit to encourage the user to start exercising.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If foot-pedaling exercise equipment is installed under a desk to eliminate lack of daily exercise, then physical activity is promoted, but users still fail to perform the exercise due to low motivation
Solution Approach 1:
The system performs preliminary action by automatically rotating the pedal unit before the user needs to exercise. The controller detects when the user has been seated without exercising for a predetermined time and automatically activates the rotary actuator to rotate the pedals, creating a kinetic chain effect that prompts the user to start exercising without requiring them to initiate the action themselves.
2Ease of operation
If the system automatically rotates the pedal unit to help users start exercising, then exercise initiation is improved, but the device complexity increases
Solution Approach 1:
The system integrates multiple functions into existing components. The rotary actuator, originally designed to assist pedal rotation during exercise, is also used to automatically rotate the pedals when the user has been inactive. The exercise monitoring sensor serves dual purposes: detecting user exercise performance and triggering the automatic rotation function. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The system performs self-service by automatically detecting when the user has been inactive and initiating the pedal rotation without requiring user input. The controller monitors exercise status through the exercise monitoring sensor and autonomously activates the rotary actuator when predetermined conditions are met, making the system self-regulating and reducing the burden on the user.
3Productivity
If the system continuously monitors exercise performance, then exercise adherence is improved, but energy consumption increases
Solution Approach 1:
The system uses periodic action by monitoring exercise status at predetermined time intervals rather than continuously. The controller checks whether the user has been inactive for a predetermined time period (such as 5 minutes) before triggering the automatic rotation function. This periodic monitoring approach maintains effective exercise adherence while significantly reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
A foot-pedaling exercise system assists workers, the foot-pedaling exercise system including an integrated pedal unit, rotatably supported by an equipment main body. The system includes a sitting part that performs yaw and roll turns through a turn actuator. When an exercise monitoring sensor detects inactivity, the controller initiates control to create a kinematic chain that encourages natural exercise motions of the user.