--- title: Hexoskin Breathing Sensors description: This article explains the Respiratory Inductive Plethysmography (RIP) sensors that are embedded in the Hexoskin Smart Shirts and Hexoskin ProShirts --- [Skip to content](https://support.hexoskin.com/hexoskin-breathing-sensors#main-content) - [English](https://support.hexoskin.com/hexoskin-breathing-sensors) - [Français](https://support.hexoskin.com/fr/capteurs-respiratoires-hexoskin) English Show submenu for translations [More support](https://support.hexoskin.com/kb-tickets/new?hsLang=en) [![Hubspot - Hexoskin Logo - Rectangle](https://support.hexoskin.com/hubfs/Hubspot%20-%20Hexoskin%20Logo%20-%20Rectangle.svg)](https://support.hexoskin.com/?hsLang=en) Open main navigation Close main navigation - - [English](https://support.hexoskin.com/hexoskin-breathing-sensors) - [Français](https://support.hexoskin.com/fr/capteurs-respiratoires-hexoskin) English Show submenu for translations - [More support](https://support.hexoskin.com/kb-tickets/new) - [Contact us](https://support.hexoskin.com/kb-tickets/new) [Contact us](https://support.hexoskin.com/kb-tickets/new?hsLang=en) How can we help you? - There are no suggestions because the search field is empty. 1. [Hexoskin Support Community](https://support.hexoskin.com/?hsLang=en) 2. [Hexoskin Smart Garments](https://support.hexoskin.com/hexoskin-smart-garments?hsLang=en) # Hexoskin Breathing Sensors ## This article explains the Respiratory Inductive Plethysmography (RIP) sensors that are embedded in the Hexoskin Smart Shirts and Hexoskin ProShirts The Hexoskin breathing sensors are based on respiratory inductive plethysmography (RIP) technology. They detect rib cage expansion and compression during respiratory cycles. The embedded loops are located at the thoracic and navel levels and allow for the monitoring of thoracic and abdominal breathing independently. ![](https://support.hexoskin.com/hs-fs/hubfs/mceclip0-png-3.png?width=318&height=292&name=mceclip0-png-3.png) The Hexoskin generates a low current-low-voltage signal and transmits it to the RIP bands in the shirt. Based on the RIP band lengths, the signal oscillates at different frequencies. We monitor these changes in frequency and translate them to respiration values 128 times per second. More precisely, as the user is breathing in and out, the RIP bands generate an oscillation frequency. An increase in chest band diameter (inhalation) will produce a decrease in frequency.  On the Hexoskin App, the signal is processed to invert the values and show a "positive" peak for inhalation and a "negative" peak for exhalation. It was decided to invert the signal for the visualization to be more representative of what the breathing curves should look like.    ![](https://support.hexoskin.com/hs-fs/hubfs/Breathing%20curves%20on%20App_FR-png-1.png?width=280&height=498&name=Breathing%20curves%20on%20App_FR-png-1.png)   On the Hexoskin Dashboard, given that it is showing raw data, you will see an increase in the frequency for exhalations and a decrease in the frequency for inhalation (as shown below). ![](https://support.hexoskin.com/hubfs/Breathing%20curve%20on%20Dashboard_FR-png-1.png)  All inhalations (inspirations) and exhalations (expirations) are detected by Hexoskin. When data is downloaded in binary format, the "inspiration.csv" and "expiration.csv" files are made available. All inhalations and exhalations are time-stamped. For inhalation, the values taken into account are the maximum values (top of the thoracic and abdominal breathing curves) while for exhalation, the values taken into account are the minimum values (bottom of the thoracic and abdominal breathing curves). ![inspiration-expiration explanation_ENG](https://support.hexoskin.com/hs-fs/hubfs/inspiration-expiration%20explanation_ENG.png?width=670&height=313&name=inspiration-expiration%20explanation_ENG.png) The weighted sums (75% thoracic and 25% abdominal) of the inhalation and exhalation values are then calculated and made available in the "inspiration.csv" and "expiration.csv" files. ![](https://support.hexoskin.com/hs-fs/hubfs/inspiration%20csv-png-1.png?width=298&height=230&name=inspiration%20csv-png-1.png)     ![](https://support.hexoskin.com/hs-fs/hubfs/Expiration%20csv-png-1.png?width=298&height=236&name=Expiration%20csv-png-1.png)   - [Hexoskin OneSync Software](https://support.hexoskin.com/hexoskin-onesync-software?hsLang=en#main-content) - [Hexoskin OneSync Advanced Features](https://support.hexoskin.com/hexoskin-onesync-software?hsLang=en#hexoskin-onesync-advanced-features) - [Hexoskin OneSync Basics](https://support.hexoskin.com/hexoskin-onesync-software?hsLang=en#hexoskin-onesync-basics) - [Hexoskin Data Analysis](https://support.hexoskin.com/hexoskin-data-analysis?hsLang=en) - [Hexoskin Support Topics](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#main-content) - [Hexoskin Mobile App](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#hexoskin-mobile-app) - [Hexoskin Articles](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#hexoskin-articles) - [Hexoskin Set-up and Configuration](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#hexoskin-set-up-and-configuration) - [Hexoskin Recorder](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#hexoskin-recorder) - [Hexoskin Troubleshooting](https://support.hexoskin.com/hexoskin-support-topics?hsLang=en#hexoskin-troubleshooting) - [Hexoskin FAQ](https://support.hexoskin.com/hexoskin-faq?hsLang=en#main-content) - [Frequently Asked Question for the Hexoskin community](https://support.hexoskin.com/hexoskin-faq?hsLang=en#frequently-asked-question-for-the-hexoskin-community) - [Order](https://support.hexoskin.com/hexoskin-faq?hsLang=en#order) - [Hexoskin OneView dashboard](https://support.hexoskin.com/hexoskin-oneview-dashboard?hsLang=en) - [Hexoskin OneSync](https://support.hexoskin.com/hexoskin-onesync?hsLang=en) - [Hexoskin Smart Garments](https://support.hexoskin.com/hexoskin-smart-garments?hsLang=en#main-content) - [Hexoskin Device](https://support.hexoskin.com/hexoskin-smart-garments?hsLang=en#hexoskin-device) - [Hexoskin App](https://support.hexoskin.com/hexoskin-app?hsLang=en) - [Hexoskin Dashboard](https://support.hexoskin.com/hexoskin-dashboard?hsLang=en) - [Help for Developers](https://support.hexoskin.com/help-for-developers?hsLang=en) - [Ordering Your Hexoskin](https://support.hexoskin.com/ordering-your-hexoskin?hsLang=en) - [Hexoskin Support](https://support.hexoskin.com/hexoskin-support?hsLang=en) [![Hexoskin - Logo - No Tagline - Rectangle - White - Transparent-Nov-28-2023-04-38-48-1716-PM](https://support.hexoskin.com/hs-fs/hubfs/Hexoskin%20-%20Logo%20-%20No%20Tagline%20-%20Rectangle%20-%20White%20-%20Transparent-Nov-28-2023-04-38-48-1716-PM.png?width=200&height=50&name=Hexoskin%20-%20Logo%20-%20No%20Tagline%20-%20Rectangle%20-%20White%20-%20Transparent-Nov-28-2023-04-38-48-1716-PM.png "Hexoskin - Logo - No Tagline - Rectangle - White - Transparent-Nov-28-2023-04-38-48-1716-PM")](https://hexoskin.com) 5800, Saint-Denis, Suite 601, Montréal (Québec), Canada Copyright © 2026, Hexoskin