Variable Resistance Athletic Platform via Cable Pulley System
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Solution Overview
Problem
Current sports equipment lacks the ability to provide variable resistance effectively during leg extensions, limiting the effectiveness of exercises that target multiple muscle groups simultaneously, such as the gluteus maximus, spinal erectors, hamstrings, quadriceps, and lower back, and do not adequately stimulate dynamic strength endurance and lactate threshold.
Innovation Solution
An athletic training platform device that utilizes a user interface with a belt attachment and a resistance system comprising weight plates, hydraulic pistons, or other resistance sources, providing adjustable resistance through a cable and pulley system, allowing for variable resistance and multiple ranges of motion while targeting the lower body muscles, including the glutes, hamstrings, and lower back, without loading the upper back or shoulders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a belt attachment with cable and pulley system is used to provide resistance during leg extensions, then variable resistance and multiple ranges of motion can be achieved, but the device complexity increases
Solution Approach 1:
The cable and pulley system serves multiple functions: it provides variable resistance through weight plates, enables multiple ranges of motion (leg extensions, squats, deadlifts), and can be adjusted for different user weights and exercise intensities. This multi-functionality justifies the added complexity by delivering versatile training capabilities through a single integrated system.
Solution Approach 2:
The resistance system is designed to be dynamic rather than static. Weight plates can be added or removed to change resistance levels, the cable can be routed through different pulleys to change the angle and direction of force application, and the system can adapt to different phases of movement (e.g., concentric vs. eccentric). This dynamic adjustability provides variable resistance without requiring a completely different device for each training scenario.
2Strength
If weight plates are used to provide resistance, then strength and lactate threshold can be improved, but the weight of the device increases
Solution Approach 1:
The resistance system is segmented into separate weight plates that can be independently selected and positioned on the cable system. Users only load the weight plates needed for their specific exercise requirements, rather than the entire device being permanently heavy. The weight plates are distributed on a tower structure, allowing selective loading and reducing the effective weight during each exercise session.
Solution Approach 2:
The weight plates are extracted from a fixed, integrated structure and placed on a modular tower system where they can be easily removed, added, or repositioned. This extraction allows the resistance component to be separated from the structural framework, reducing the permanent weight of the device while maintaining the capability to provide heavy resistance when needed through selective plate placement.
3Reliability
If the belt is positioned on the lower back and hips, then traction on the spine and stimulation of glutes is achieved, but the ease of operation decreases
Solution Approach 1:
The belt positioning is simplified through preliminary design features such as pre-formed loops, adjustable straps with quick-adjust mechanisms, or molded contours that guide the belt into the correct position on the lower back and hips. Users benefit from the reliability of proper spine traction and glute stimulation without having to manually position the belt precisely, as the preliminary structural design ensures correct fit and comfort.
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 device enhances muscle strength, dynamic strength endurance, and lactate threshold by providing adjustable resistance, improving blood flow and aiding recovery, while allowing for safe performance of lifts like squats and deadlifts, reducing pelvic tilt and stimulating the lower body effectively.
Implementation Method 1
hydraulic pistons
Data Source
AI summary
A multi-purpose athletic training platform exercise device is provided. A user may stand atop a platform and exercise while connected to a downward pulling source of resistance. This machine allows the user to walk forwards, backwards and side-to-side freely while still having attachment to the resistance source via a connecting means. This will activate all the muscles in the lower body while tractioning the lower back and helping to reduce pelvic tilt. The resistance may be varied during the user effort. The user is able to step off the machine to climb up or down a step, or walk up and down a ramp that may be provided.