Controlled Squat Machine With Knee Stabilization and ROM Limits
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Solution Overview
Problem
Existing squat strength-training machines lack features for stabilizing knee joints and controlling the range-of-motion (ROM) during exercises, leading to increased risk of knee injuries, especially with free weights, and there is a need for a dynamic-positioning, motion-limiting squat-training machine.
Innovation Solution
A frame-based squat strength-training machine with adjustable elasticized resistance bands, pads, and adjustable components to support and restrain the user throughout the squat motion, providing controlled ROM and knee stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If free weights are used for squat exercises, then strength-training benefits are increased, but the risk of knee injuries increases
Solution Approach 1:
The patent introduces a squat training machine as an intermediary device between free weights and the user. The machine includes a frame with guides that constrain the movement path, pads that contact and stabilize the knee joints, and resistance elements that provide controlled resistance. This intermediary structure maintains the strength-training benefits while eliminating the uncontrolled movements that cause knee injuries during free weight squats.
2Object-affected harmful factors
If squat cages are used to control ranges of movement, then injury risks are reduced, but exercise freedom and adaptability are limited
Solution Approach 1:
The patent employs dynamic adjustment mechanisms that allow the exercise parameters to be customized. The resistance elements (springs or elastic bands) can be adjusted to provide variable resistance throughout the range of motion. The pads and guides can be repositioned to accommodate different user needs and exercise variations. This dynamic adaptability reduces injury risks while maintaining exercise freedom, resolving the contradiction between safety and versatility.
3Reliability
If pads and resistance elements are added to stabilize knees and control motion, then knee stabilization is improved, but device complexity increases
Solution Approach 1:
The patent divides the stabilization function into separate modular components: a frame with guides for motion control, adjustable pads for knee support, and independent resistance elements. Each component performs a specific function and can be adjusted or replaced independently. This segmentation achieves reliable knee stabilization while managing device complexity through modular design, allowing each element to be optimized separately.
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
The machine reduces the risk of knee injuries by stabilizing the knees and allowing for variable resistance, enhancing the exercise benefits while ensuring safe and effective squat training.
Implementation Method 1
One or more elasticized resistance bands stretch through the range of motion
Data Source
AI summary
A controlled squat strength-training machine includes a frame with a base mounting forward, intermediate, and rear uprights. The intermediate upright is pivotally connected to the base and is configured for limited rotation fore-and-aft. Knee pads are provided for restraining of users' knees. Users can adjust the resistance of the machine and thereby vary the exercises performed thereon.