Offset-Loaded Resistance Band with Segmented Elasticity
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Solution Overview
Problem
Conventional resistance bands lack the ability to provide asymmetric loading, which can lead to muscular imbalances and insufficient engagement of core muscles during exercises, as they offer uniform resistance throughout.
Innovation Solution
An offset-loaded resistance band with distinct elastic properties along its length, featuring a first portion with a different elastic modulus than a second portion, allowing for varying resistance levels when stretched, mimicking the effect of using different weights on each side of the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional resistance band with uniform elasticity is used, then the device structure remains simple and easy to manufacture, but it cannot provide asymmetric loading which leads to muscular imbalances and insufficient core engagement
Solution Approach 1:
The resistance band is divided into multiple segments along its length, each segment having different elastic properties. This segmentation allows the band to provide asymmetric loading by creating different resistance levels at different positions, enabling versatile training exercises while maintaining a relatively simple continuous band structure.
Solution Approach 2:
Different portions of the resistance band are given different local qualities through varying elastic moduli. The band includes at least one portion with a first elastic modulus and another portion with a second elastic modulus, allowing asymmetric loading capability to be achieved by modifying local properties rather than changing the overall device structure.
2Adaptability or versatility
If different weights are used on each side for offset loading, then core muscles are strengthened and muscular imbalance is reduced, but the device complexity increases requiring separate weight attachments
Solution Approach 1:
The patent merges the function of separate weight attachments into the resistance band itself by creating portions with different elastic moduli along the band's length. This integration achieves offset loading capability without requiring additional separate components, maintaining device simplicity while providing asymmetric loading functionality.
Solution Approach 2:
The elastic modulus parameter is changed at different portions of the resistance band to create asymmetric loading. By varying this physical parameter along the band's length, the patent achieves offset loading effects without adding complex mechanical components or attachments.
3Ease of manufacture
If a single elastic band is used, then the device is simple to manufacture, but it provides uniform resistance that does not engage core muscles or address muscular imbalances
Solution Approach 1:
The resistance band is manufactured with different local qualities by varying the elastic modulus at different portions along its length. This allows the band to provide asymmetric resistance patterns that engage core muscles and address muscular imbalances, while still maintaining relative manufacturing simplicity through continuous band construction rather than multiple separate components.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances muscle engagement by creating an asymmetric loading effect, stabilizing the core and reducing muscular imbalances by requiring different forces to stretch each portion of the band, thus providing a more balanced workout.
Implementation Method 1
The elongate cable is resiliently biased toward an unstretched length such that the elongate cable resists being stretched along its length in response to an application of a tension force to the first and second ends
Data Source
AI summary
An exercise apparatus includes an elongate cable being elastic and having opposing first and second ends configured to be grasped by a user. The elongate cable is configured to provide resistance to being stretched along its length in response to an application of a tension force to the first and second ends of the cable and return to its unstretched length upon the user releasing the tension force. The elongate cable includes a first portion having a first elasticity, and a second portion having a second elasticity that is different than the first elasticity of the first portion.