Exercise Strap System Isolating Muscle Groups
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Solution Overview
Problem
Existing exercise devices often require users to grip weights or rely heavily on forearm strength, leading to excessive stress on joints and ligaments, and may not effectively isolate the intended muscle group during exercise.
Innovation Solution
The exercise device features a strap system with adjustable openings, allowing for customizable fit and reduced reliance on grip strength, thereby isolating muscle groups and distributing stress more evenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the user grips a weight to perform exercise, then the exercise can be performed, but excessive stress is placed on forearm muscles, joints, and ligaments
Solution Approach 1:
The patent removes the gripping action from the exercise mechanism by replacing hand-held weights with a strap system that loops around the body part being exercised. This extracts the harmful gripping function while preserving the exercise function, allowing the targeted muscle group to work without the forearm and grip muscles interfering.
Solution Approach 2:
The strap serves as an intermediary element between the weight and the body, replacing direct hand grip with a distributed body loop configuration. This intermediary mechanism transfers the exercise load from the hands and forearms to the targeted muscle group, reducing stress on joints and ligaments while maintaining exercise effectiveness.
2Device complexity
If a fixed strap configuration is used, then the device structure is simple, but it cannot accommodate different user sizes and preferences
Solution Approach 1:
The patent implements dynamic adjustability in the strap system by incorporating movable sections that can slide within fixed openings. This allows the strap configuration to change and adapt to different user sizes and preferences while maintaining a relatively simple overall structure, resolving the contradiction between structural simplicity and adaptability.
3Reliability
If grip strength is required to secure the exercise device, then the device can be firmly attached, but users with weak grip strength cannot complete the exercise
Solution Approach 1:
The patent extracts the gripping function entirely from the device operation by replacing hand-held components with a strap system that secures around the body through friction and tension distribution. This eliminates the requirement for grip strength to attach or operate the device, allowing users with weak grip strength to complete exercises while maintaining reliable attachment through the strap mechanism.
4Stability of the object's composition
If the wrist is tightly secured with a strap, then stability is improved, but range of motion is restricted
Solution Approach 1:
The patent applies dynamic adjustability to the wrist strap, allowing it to be tightened for stability during exercise and loosened for range of motion when needed. The movable section within the fixed opening enables this dynamic adjustment, resolving the contradiction between maintaining wrist stability and preserving necessary range of motion.
Data Source
AI summary
An exercise device is provided to couple a user's limb to a resistance mechanism and to tighten on the user's limb by a force applied in opposition to the resistance mechanism. The device may include a strap including a first portion, a second portion, and a third portion. The strap may define an adjustable opening configured to receive the user's limb. The first portion and the third portion of the strap may be attached to a closed loop shape configured for coupling to the resistance mechanism. A fixed opening may be coupled to the strap, and the adjustable opening of the strap may be formed by passing the second portion of the strap through the fixed opening. The device may also include a flexible material coupled to the strap and defining a tube providing the fixed opening.