Body Composition Index Calculation for Fair User Performance Comparison
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Solution Overview
Problem
Existing methods fail to provide an objective comparison of body composition change performances among users with different initial compositions and physical characteristics, as they do not account for individual variations in gender, age, height, weight, and skeletal muscle mass when measuring weight control efforts.
Innovation Solution
A computing device and method that calculates an index value by determining a second period required for a user group with similar characteristics to achieve body composition changes, allowing for a fair comparison by dividing the second period by a first period of body composition change, thereby generating an index value for comparing performances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If body composition changes are measured using standard measurement devices, then body composition data can be obtained, but objective comparison of performance between users with different initial compositions is not possible
Solution Approach 1:
The patent transforms the comparison metric from absolute body composition change values to a normalized index value that accounts for initial body composition parameters. By changing the parameter of comparison from raw difference to ratio-based index (actual change divided by reference change), the system enables fair comparison across users with different starting points while maintaining measurement precision.
Solution Approach 2:
The patent introduces an intermediary calculation layer between measurement and comparison. Instead of directly comparing body composition changes, the system uses body composition index values as an intermediary metric that normalizes performance data. This intermediary allows users with different initial compositions to be compared on a standardized scale.
2Ease of operation
If users with different initial body compositions are compared using the same metrics, then comparison is simplified, but the comparison becomes unfair and inaccurate
Solution Approach 1:
The system changes the comparison parameter from absolute values to relative index values. By calculating body composition index values that reflect initial composition states, the patent maintains operational simplicity while significantly improving comparison accuracy and fairness across diverse user groups.
3Productivity
If body composition changes are measured without considering initial composition, then measurement process is straightforward, but performance evaluation becomes meaningless
Solution Approach 1:
The patent performs preliminary calculation of body composition index values based on initial composition data before conducting performance evaluation. This preliminary action preserves measurement efficiency while ensuring that subsequent performance assessments are meaningful and accurate by accounting for individual starting points.
Data Source
AI summary
Provided is a computing device for generating an index value for comparing the body composition change performance between users having different body compositions. The computing device can comprise: a communication unit for acquiring body composition data of a user from a connected body composition measurement device or updating a body composition change amount of the user for a first period of time; a processor for calculating a second period of time required for a pre-selected user group in order to achieve the body composition change amount; and an output unit for generating an index value for comparing the body composition change performance between users having different body compositions by using the first period of time and the second period of time.