# K190966: Katalyst Training System

- Pathway: 510(k) (Traditional)
- Applicant: Katalyst, Inc.
- Decided: Feb 3, 2020 after 297 days
- Product code: NGX (Stimulator, Muscle, Powered, For Muscle Conditioning)
- Device class: 2
- Regulation: 21 CFR 890.5850
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 7 generations back to K881114 (1988). 32 ancestors in all.
3 later devices descend from it; 3 cite it directly.
0 of 36 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K170903: Compex Wireless USA, Djo, LLC (2017) Summary page 4.

## Most influential descendants
- K233770: Pepper EMS Training System (2025), 0 descendants of its own
- K222386: Visionbody (2023), 0 descendants of its own
- K221498: Miha Bodytec II (2022), 0 descendants of its own

## Indications for use
The Katalyst Training System is an Over-The-Counter device intended to stimulate healthy muscles in order to improve or facilitate muscle performance. It is to be used by adults only. The Katalyst Training System is not intended to be used in conjunction with therapy or treatment of medical diseases or medical conditions of any kind. None of the training programs or operational parameters are designed to target injured or ailing muscles and its use on such muscles is contraindicated. The Katalyst Training System's electrical impulses allow the triggering of action potentials on motoneurons of motor nerves (excitations). These excitations of motoneurons are transmitted to the muscle fibers via the motor endplate where they generate mechanical muscle fiber responses that correspond to muscle work. Depending on the parameters of the electrical impulses (pulse frequency, duration of contraction, duration of rest, total session duration), different types of muscle work can be imposed on the stimulated muscles.

Source page: https://510kreport.com/device/K190966
Methodology: https://510kreport.com/methodology