Hands-free Middle Back Exercise Device
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Solution Overview
Problem
Existing exercise methods and devices fail to effectively target and strengthen the muscles between the shoulder blades, leading to poor posture due to the recruitment of stronger muscles like latissimus dorsi and biceps brachii, and are often cumbersome and impractical for home use.
Innovation Solution
A portable, adjustable tensile exercise device consisting of two fabric loops connected by a rubber loop that allows users to contract their shoulder blades together and down without using their hands, specifically targeting the middle and lower trapezius and rhomboid muscles, providing adjustable resistance and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hands are used to grasp resistance during middle back exercises, then stronger muscles like latissimus dorsi and biceps brachii are recruited, but the middle back muscles fail to contract properly
Solution Approach 1:
The invention extracts the hands from the resistance-grasping function by placing them in fabric loops that rest on the upper arms. This removes the interfering factor (hand grip) that causes stronger muscles to dominate, allowing the middle back muscles to contract properly without hand involvement in the pulling motion.
Solution Approach 2:
The fabric loops serve as an intermediary between the user's arms and the resistance. Instead of hands directly grasping the resistance, the fabric loops contact the upper arms and transmit force through the rubber band, eliminating the grip mechanism that triggers incorrect muscle recruitment patterns.
2Reliability
If exercise machines are used at home, then middle back muscles can be targeted, but the devices are expensive and require dedicated space
Solution Approach 1:
The invention segments the exercise function into simple, portable components: two fabric loops and a rubber band. This breaks down the complex machinery of traditional exercise equipment into minimal essential elements that maintain effectiveness while eliminating bulk, cost, and storage requirements.
Solution Approach 2:
The invention uses inexpensive, simple materials (fabric and rubber) instead of expensive, durable exercise machine components. While less permanent than gym equipment, these simple objects provide effective middle back training without the high cost and space requirements of traditional machines.
3Strength
If traditional rowing exercises are performed with hands grasping resistance, then upper body strength is developed, but the latissimus dorsi and biceps brachii do the lion's share of the work
Solution Approach 1:
The invention extracts the hands from the resistance-grasping function by placing them in fabric loops that rest on the upper arms. This removes the interfering factor (hand grip) that causes stronger muscles to dominate, allowing the middle back muscles to contract properly without hand involvement in the pulling motion.
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 device effectively strengthens the muscles responsible for shoulder girdle retraction and depression, improving posture by isolating the middle back muscles from stronger upper body groups and offering a convenient, portable solution for home use.
Implementation Method 1
two adjustable fabric loops connected by a rubber loop
Data Source
AI summary
This invention relates to health and fitness and more particularly to exercise methods and devices. This invention is directly related to strengthening the muscles between the shoulder blades associated with poor posture, without the use of the hands. The exercise apparatus comprises two adjustable fabric loops connected to a rubber loop. The user slips one arm into each fabric loop pulling the device up to rest on the back of the upper arms with the rubber loop resting across the front of the body just above chest height. User then contracts the shoulder blades together and down which creates resistance on the rubber loop strengthening the muscles between the shoulder blades.