Exercise Rack Load Regulation for Variable Resistance Control
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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 or control user movements, 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, using motors and sensors to enable isotonic, isokinetic, and isometric exercises, and includes safety features to prevent injuries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If barbells or dumbbells are used for resistance training, then the training can be performed with simple equipment, but the resistance level cannot be adjusted during training and isokinetic exercise cannot be achieved
Solution Approach 1:
The training system integrates multiple exercise modes (isotonic, isokinetic, isometric) into a single platform. The load regulation assembly can dynamically adjust resistance characteristics to support different exercise types, making one piece of equipment capable of performing functions that previously required multiple different devices.
Solution Approach 2:
The system transitions from static fixed-weight barbells to a dynamic load regulation assembly that can continuously modify resistance during exercise. The assembly moves along guided rails and uses motorized control to adjust load characteristics in real-time, enabling adaptive resistance training.
2Adaptability or versatility
If fixed weight barbells are used, then the equipment structure is simple, but the resistance level cannot be adjusted during training
Solution Approach 1:
The load regulation assembly replaces static weight plates with a dynamic system that uses motorized actuators to adjust resistance. The assembly can be positioned at different locations along the guided rails and can modify the mechanical advantage ratio, providing continuous resistance adjustment without requiring manual weight changes.
Solution Approach 2:
The system changes the resistance parameter dynamically during exercise execution. By adjusting the position of the load regulation assembly and modifying the mechanical linkage geometry, the system varies the resistance level and characteristics to match the user's performance throughout the range of motion.
3Ease of operation
If free weights are used, then the training is simple to perform, but there is no way to control user movements to be of constant speed
Solution Approach 1:
The system incorporates sensors to detect user movement parameters such as velocity and position. This feedback is used by the control system to adjust the load regulation assembly's position and resistance characteristics in real-time, enabling the system to maintain constant speed during isokinetic exercise or enforce proper movement patterns.
Solution Approach 2:
The system replaces purely mechanical free-weight exercise with a controlled mechanical system that uses motors and sensors to regulate movement. The load regulation assembly actively controls the resistance and motion characteristics, substituting passive gravity-based resistance with an actively controlled mechanical system.
4Adaptability or versatility
If Smith machine is used, then the training path is fixed, but isokinetic exercise cannot be performed due to inability to continuously modify load
Solution Approach 1:
The system transforms the static fixed-path Smith machine concept into a dynamic system where the load regulation assembly can move along guided rails and continuously modify the load characteristics. The motorized control enables real-time adjustment of resistance to achieve isokinetic exercise, unlike the static Smith machine design.
5Reliability
If conventional training equipment is used, then the equipment is simple and widely available, but adequate safety protection is not provided during extreme training exercises
Solution Approach 1:
The system uses sensors to continuously monitor exercise parameters such as force, velocity, and position. When abnormal conditions are detected (such as excessive force or improper movement patterns), the control system automatically adjusts the load regulation assembly to reduce resistance or stop the exercise, providing real-time safety protection.
Solution Approach 2:
The system establishes predetermined safety limits and constraints before exercise begins. The control system is programmed with safe operating parameters and will automatically intervene to prevent dangerous movements or excessive loading, proactively protecting the user before injury can occur.
Data Source
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AI summary
A system for strength and conditioning training. The system comprises an exercise rack, a load regulation assembly mounted on the rack, the load regulation assembly is moveable relative to the rack, and; wherein the load regulation assembly is configured to receive and support a weight, and; wherein the load regulation assembly is configured to adjust the magnitude and/or direction of an applied load.