Exercise Rack Load Regulation for Dynamic Resistance Training

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Current strength and conditioning training tools, such as barbells and Smith machines, are limited to isotonic exercises due to fixed weight loads, making isokinetic and isometric exercises difficult to perform, and lack the ability to adjust resistance levels dynamically, leading to monotonous training programs and increased injury risk.

Innovation Solution

A system with a load regulation assembly on an exercise rack that adjusts the magnitude and direction of the applied load, allowing for isotonic, isokinetic, and isometric exercises, equipped with sensors and cameras to monitor user movements and safety, and a controller to manage these adjustments based on selected exercises.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If fixed weight barbells or Smith machines are used, then the equipment structure is simple, but the exercise types are limited to isotonic only

Engineering Contradiction:

Improveexercise typesVSAvoidequipment structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the resistance force magnitude and direction based on real-time detection of user movement parameters. The load regulation assembly changes from a static fixed-weight structure to a dynamic system that continuously modifies resistance characteristics, enabling multiple exercise types (isotonic, isokinetic, isometric) with a single piece of equipment.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the resistance parameters (magnitude and direction) based on detected movement characteristics. By dynamically adjusting these parameters, the system enables different exercise modes without requiring multiple separate pieces of equipment, thus improving versatility while maintaining reasonable structural complexity.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If fixed weight loads are used, then the equipment is simple to operate, but the training programs become monotonous

Engineering Contradiction:

Improvetraining programsVSAvoidoperation simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically detects user movements and adjusts resistance parameters without requiring manual intervention. The automated control system monitors movement speed, position, and force, then dynamically modifies the resistance profile, enabling varied training programs while maintaining ease of operation through automation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system incorporates sensors that continuously monitor user movement parameters and provide feedback to the control system. This closed-loop feedback mechanism enables the equipment to automatically adapt resistance characteristics based on real-time performance data, creating diverse training programs while keeping the user interface simple.

Inventive Principle:

Principle #23Feedback

3Reliability

If free weights are used, then the equipment structure is simple, but there is no way to control movement speed or match applied force

Engineering Contradiction:

Improvesafety protectionVSAvoidcontrol system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system introduces an intermediary control system between the user and the resistance force. This intermediary actively monitors movement parameters and adjusts resistance in real-time, providing safety protection by preventing excessive forces while maintaining reasonable structural complexity through modular sensor and actuator integration.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces passive mechanical resistance systems with an active electromechanical control system. Sensors and actuators substitute for purely mechanical weight systems, enabling dynamic force matching and speed control while enhancing safety. The control system complexity is justified by the significant improvements in reliability and training effectiveness.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

4Adaptability or versatility

If Smith machines are used, then the equipment provides guided movement, but isokinetic and isometric exercises cannot be performed

Engineering Contradiction:

Improveexercise typesVSAvoidmovement control

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system transitions from the static guided movement of Smith machines to a dynamic movement control system. The load regulation assembly can adapt to various movement patterns and velocities, enabling isokinetic and isometric exercises in addition to traditional isotonic movements, thereby improving exercise type versatility while maintaining ease of operation through automated control.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20260069915A1Apparatus, system for strength and conditioning training

Publication Date: 2026.03.12 THE UNIVERSITY OF HONG KONG

AI summary

A system for strength and conditioning training includes an exercise rack and a load regulation assembly mounted on the rack, the load regulation assembly moveable relative to the rack, wherein the load regulation assembly is configured to receive and support a weight, and the load regulation assembly is configured to adjust the magnitude and/or direction of an applied load.