Yesterday, the participant walked 400 metres and then sat down. After a few moments, they placed their right arm in a hardware device and pressed start. The device displayed information via an electronic screen and a paper printout.

Subsequently, a photo was taken with the aid of another device running different software. The image was slightly cropped, the contrast and brightness were manually adjusted, and the #metadata was removed. Finally, the image was uploaded #online and permissions were set accordingly.

I discussed all necessary #data, #protection, and #privacy issues with legal counsel. I received advice on personal information as well as sensitive personal information (e.g. financial, sexual, and political information). The issue of data aggregation was also briefly covered. I've not yet obtained a second opinion.

I've also not yet reviewed the current literature on #public #health, but noted in the observation log that the subject has been a vegetarian for most of their life.

Early next week, I will discuss broader #ethics questions directly with my #research collaborator.