Electrodermal activity measurement provides athletes with new information

Different kinds of physiological measurement systems have been used for a long time in top sports. Wearable devices have made exercise tracking easy for everyone.

Heart rate monitoring is the most used measurement in sports. It was developed by an Australian physician Robert Treffene for swim exercising. In Finland hear rate monitor was invented by the Polar Electro founder, professor Seppo Säynäjäkangas in 1975.

Today there is a huge variety of equipment for hear rate monitoring. The most accurate ones still measure from chest, either with a band or with taped sensors. Wrist worn trackers are comfortable to wear and they have largely displaced chest bands especially with non-professional exercisers. The accuracy of wrist worn trackers has been improved in past years, but it suffers especially at high heart rates.

Heart rate, heart rate variability (HRV) and electrodermal activity (EDA)

Analysing heart rate gives a good view of physical strain. With different algorithms it is possible to understands also recovery, sleep and stress.

Heart rate variability (HRV) has been lately brought up especially in measuring non-physical load. There are challenges, as at high heart rates the algorithms struggle to understand what happens: is the person physically at rest, but nervous (e.g. about a soon-to-start exam), or is it now about physical exercise? Here the accelerometers, present in all of the trackers, are of help. These components can detect whether a person is moving or is at rest, and much more about movement directions and pace.

The electrodermal activity (EDA) measurement brings interesting new information to analyse performance of an athlete. This does not tell about heart, but about sympathetic nervous system activation through sweat gland reactions of skin. Skin is the only organ that is purely innervated by the sympathetic nervous system. The EDA measurement is very sensitive to emotional and cognitive stress, and it has been used in psychological research already for over 100 years. Only lately it has become available for consumers.

The Moodmetric smart ring measures electrodermal activity. The ring is comfortable to wear and it is thus well suited for continuous, long term measurement. Only a sufficiently long measurement period gives a full picture on stress, how it is generated and how recovery happens during weeks, months and even years.

Both top sports, and going after personal goals in exercising benefit of stress load related information. It is good to understand what sources of stress or recovery might affect the performance. For instance, cognitive load of a professional athlete might be less than for someone who need to have a day job to finance the sports career. The professional athlete can probably exercise more, as there is more time for recovery. The results and performance are affected by emotional and cognitive load, if there is no time to unwind.

Read more: Moodmetric-measurement in research

Moodmetric will participate SMASH-sports event in Helsinki the 28-29th November, come to meet us and test the smart ring!

Contact:
Niina Venho
[email protected]
+358 40 710 4087

Moodmetric app now with Diary and more

The Moodmetric ring and app support stress management with the aid of health tech. The app is a simple and visual tool that helps the user to understand and react to stressful things in life.

The new Moodmetric App has now been released for both iPhone and Android users. The app works with current and new ring versions.

The new app gives more tools for stress management

The familiar features of the previous Moodmetric app are still there. The real-time view supports live follow-up on stress levels, and the much appreciated Daily diagram is as before.

The new app supports stress management even better with both more possibilities for user input and automatized analytics. Defining actions and categorizing events show clearly what are the stressors in life, and what brings energy.

Stress/Mood scatter plot

The most impactful new feature is the Stress/Mood scatter plot, that now combines the experienced mood in addition to the stress measurement data provided by the Moodmetric ring.

The Moodmetric level 0-100 is the vertical axis of the scatter plow. The same Moodmetric level is familiar from the previous app version, it is developed for simple reading of the measurement results. The higher the stress level, the higher the vertical position of the life category circles.

The self perceived mood is the horizontal axis. The more use the has noted an event to be of a positive mood, to more to the right it takes the life category circle.

Diary

The scatter plot is based on Diary which is automatically updated with the Moodmetric stress level information. The user can download the phone calendar events to Diary and add notes.

It is possible to add notes to events, choose a category and indicate happy, neutral or bad mood.

 

App development is team work

Planning and development of the new features have  been started at Moodmetric already in spring 2017. We would like to give special thanks to Eero Jaakonaho for the work on perfecting the user experience from the visual perspective.

Both the iOS and Android mobile app new features have been developed at Gofore, in close cooperation with Moodmetric. The end user was kept in mind throughout the project, for example the developers had the possibility to wear the Moodmetric ring. Flexible communication enabled a smooth progress, and the app release was made as planned well before the new ring version deliveries.

Download the new Moodmetric app from AppStore or GooglePlay. If you have an old version with data in, you will not loose it.