Root Mean Square of the Successive Differences (RMSSD) is one of a few time-domain tools used to assess heart rate variability, the successive differences being neighboring RR intervals. The automated analysis routine in AcqKnowledge® will perform the analysis within fixed time intervals, between event boundaries (user defined event marks), and focus areas within the data. The software will either paste the data into a journal file or a spreadsheet for further analysis.
Use AcqKnowledge‘s Multi-epoch HRV – Statistical analysis routine to automate RMSSD, SDSD, and pNN50 HRV calculations. There is also an additional script option to perform the same analysis – Script 056: Compute HRV Statistics.
See More...
This is one of many ADVANCED FEATURES for the selected Application. Scroll down for hardware options.
Figure 1 R-R interval
Figure 1 shows the R-R intervals labeled A = (R-R)1, B = (R-R)2, C = (R-R)3, …. (R-R)i represents the interval between two neighboring QRS peaks.
The RMSSD is looking for the successive difference between the intervals meaning:
A-B à(R-R)1 – (R-R)2
B-C à(R-R)2 – (R-R)3…and so forth
The RMSSD calculates to:
RMSSD =
where N = number of RR interval terms
Using the option to export the HRV tachogram to Excel, the calculation of the RMSSD is structured in Excel to appear as shown in Figure 2:
Figure 2 Excel sheet for RMSSD calculation
BIOPAC Research Solutions | ECG
Hardware Bundles are complete solutions for the specified application. Choose your preferred platform and bundle, then click "Request Pricing" to request an estimate, add/remove items, or complete purchase. If you have questions about specific items, click through to the product web page for details and specifications, or contact your Local Sales contact.
MP36R System
Wired | RMSSD for HRV Analysis
MP36R with AcqKnowledge plus lead set & long-term recording electrodes
MP36R System
Wired | RMSSD for HRV Analysis
MP36R with AcqKnowledge plus electrode lead adapter, adhesive disks, 8 mm shielded & unshielded TP electrodes
MP160 System
Wired | RMSSD for HRV Analysis
MP160 plus AcqKnowledge with three ECG amps, multi-lead egg cable, and long term electrodes
MP160 System
Wired | RMSSD for HRV Analysis
MP160 plus AcqKnowledge with ECG amp, module extension cable and long-term electrodes
MP36R System
MP36R System
MP160 System
MP160 System
Mobita
Wireless | RMSSD for HRV Analysis
Mobita system for up to 32-CH Wireless Biopotentials plus AcqKnowledge
Mobita
MP160 System
MRI | RMSSD for HRV Analysis
MP160 plus AcqKnowledge with ECG MRI amp, MRI cable/filter system to biopotential amps, disposable radiotranslucent electrodes and electrode gel
MP160 System
MP36R System
Animal | RMSSD for HRV Analysis
MP36R with AcqKnowledge plus electrode lead adapter and three 12 mm TP unipolar needle electrodes
Stellar
Animal | RMSSD for HRV Analysis
Schedule, Record, and Analyze Stellar Telemetry Data with AcqKnowledge
MP160 System
Animal | RMSSD for HRV Analysis
MP160 plus AcqKnowledge with ECG amp, module extension cable, and unipolar needle electrodes
MP36R System
Stellar
MP160 System
The fEMG Electromyography Smart Amplifier is designed specifically for recording facial EMG signals and electrical activity from other small muscle groups. Use with AcqKnowledge™ software to analyze facial expressions and startle paradigms. BIOPAC’s new Smart Amplifiers are designed for great data. Smart Amplifiers improve performance by amplifying the physiological signal close to the subject, which allows a high-level […]
View AllBIOPAC provides software and hardware that allows research teams to study physiological measures, whether in this reality or in virtual reality, or for a single person or multi-person groups. Here are a few studies focusing on BIOPAC equipment’s ability to record physiological signals, including ECG, EDA, and Respiration. Pairs Performing Under Pressure How does acute stress affect real-time cooperation […]
BIOPAC’s comprehensive Introductory ECG Guide addresses fundamental to advanced concerns to optimize electrocardiography data recording and analysis. Topics include: ECG Complex; Electrical and Mechanical Sequence of a Heartbeat; Systole and Diastole; Configurations for Lead I, Lead II, Lead III, 6-lead ECG, 12-lead ECG, precordial leads; Ventricular Late Potentials (VLPs); ECG Measurement Tools; Automated Analysis Routines for extracting, […]
Read All