Design Principles of Available Machines
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Vibration training and therapy devices differ significantly in oscillation parameters like amplitude, frequency, and also in quality and durability. The main reasons for these differences are the used movement principle (side-alternating, vertical, circular horizontal) and the mechanical driving mechanism used by a specific device. Oscillation parameters have an essential impact on training and therapy goals as well as on the performance of the device. As a consequence, significant differences are found between different quality and price categories, which can be relevant for application and safety.
The consequences of decreased production effort not only influence the usability and durability of a device, but also the quality of movement of the platform, namely the extent of high-frequency components related to potential health hazards. Most of these aspects interfere since the used mechanical principle design not only affects durability but also impacts on possible oscillation parameters as well as potential health hazards.
The marketing of devices, unfortunately, often uses incorrect and misleading performance parameters. Many manufacturers are referencing research which used completely different device types, with different oscillation parameters and movement principles. Altogether, this often implies a functionality that in fact is not possible with a specific device.
Quality aspects, therefore, not only include basic oscillation parameters like frequency, amplitude and movement principle but also their reproducibility, oscillation quality (high-frequency components), effects of loads (e.g., caused by intense exercise), durability, maintainability, device classification (training or medical), research performed with the actual device, and also professional support and product training.
KeywordsSide alternation Vertical vibration Quality Driving mechanics Movement principle Reproducibility
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