Hello everyone,
We are six french students from both engineer school and business school and we are studying (on behalf of a french company) applications that use wireless technologies.
As we decided to focus on the field of sports and more specificaly on the measurements of physical and sport activities, we thought this questionnaire could interest you! (it lasts approximately 2 minutes) 
In order to understand your needs and try to answer your wishes, all your answers will be a great help.
Here is the link of the questionnaire:
We thank you all.
Best regards.
Matthieu