MAX30001 EV Kit (ECG, BioZ, Heart Rate, and Pace) - Review

Table of contents

RoadTest: MAX30001 EV Kit (ECG, BioZ, Heart Rate, and Pace)

Author: s2000gt

Creation date:

Evaluation Type: Development Boards & Tools

Did you receive all parts the manufacturer stated would be included in the package?: True

What other parts do you consider comparable to this product?:

What were the biggest problems encountered?: Minor install issue with windows 7. Readings easily distorted by movement, this could be a real problem for wearables

Detailed Review:

I would like to thank Maxim semiconductor for such an interesting and different road test platform. Although I do work in the medical equipment field,

the areas of Bio Impedance and ECG monitoring are new to me.

 

Overview:

 

The MAX30001EVSYS is a very easy board to work with numerous test points and jumper locations. The board is quite large and the layout

makes it simple to reconfigure settings. It would however be nice if the documentation had a jumper settings illustration based on board location as

some of the board text is rather small.

 

The board also includes a MAX32630FTHR board which allows the MAX30001 chip to communicate to the windows pc over USB.

This board has many features not tested in this roadtest including Bluetooth,Power management, 6 axis accelerometer and data logging SD slot.

 

 

The kit includes a nice set of leads, but i would recommend increasing this from 3 to 5 as there are some tests in the software

that need a 5 lead set.

 

 

Software:

 

The GUI software has a main page for quick start settings for the main functions as well as self test routines.

 

 

ECG functions have Channel and MUX screens.

 

 

BioZ functions have Channel, MUX and Load screens.

 

 

Pace function channel screen

 

 

SD logging function screen

 

 

Data registers and Advanced screens

 

 

Test Runs:

 

First up is ECG monitoring. The unit provide a self test function so i tried this first.

The function provided a steady R to R or pulse rate.

 

 

Next was to measure my actual ECG using the included leads and ECG electrodes(not included).

The illustrations show the characteristics of a typical heartbeat and electrode placement.

 

 

Now for the real thing, adequate for R to R, not so much for ECG monitoring.

 

 

Next is Pace detection, this is for people with a pacemaker.

Here again the software provides a self test function for this.

 

 

Finally we come to Bio Impedance. This is perhaps the most interesting aspect of this device from a development standpoint.

While there are many devices on the market that will display a persons heart rate. Bio Impedance has several applications,

the most common being Bio Impedance analysis to determine body mass (BMI) on fat and non fat areas of the body.

The most interesting new application is from a sports medicine (wearables) perspective. Being able to monitor hydration

levels in the whole body with bluetooth connected bands on the arms and legs using this technology.

 

First up the self test function, standard and mOhm scales.

 

 

Bioimpedance calculations for BMI

 

Calculation of Body Fat %

Lukaski & Bolonchuk's (1988)[1] formula for total body water (TBW) is:

 

 

TBW = 0.372(S²÷R) + 3.05(Sex) + 0.142(W) - 0.069(age)

S = Height in centimetres

R = Resistance

W = Weight in Kg

Sex Male =1 Female = 0

Age in years

Example

Athlete is male, 25 years old, height 170cm, weight 65kg - measured resistance is 382

 

 

TBW = 0.372(170² ÷ 382) + 3.05(1) + 0.142(65) - 0.069(25)

TBW = 38.7kg

The hydration constant of the fat free mass (FFM) is 0.73 so we can determine the FFM

 

 

FFM = TBW ÷ 0.73 = 38.7 ÷ 0.73 = 53.01 kg

The Fat Mass = Weight - FFM = 65 - 53.01 = 11.99kg

 

 

Body Fat % = Fat Mass ÷ Weight x 100 = 11.99 ÷ 65 x 100 = 18.5%

 

 

Utilizing 3 lead method for BioZ whole body reading (b).

 

 

 

Conclusion:

 

I find this a fascinating technology with much potential. The dehydration wearable monitor for runners

or hikers sounds like a great application for this device assuming the multiple monitor bands and

bluetooth implementation could be worked out.

 

What would i change about the development board, maybe include the programmer for the

MAX32630FTHR board and two more leads. Perhaps add more channels for the ECG function for

better resolution and more logging functionality in the BioZ monitor.

Anonymous