uHealth is becoming more and more important and is changing from a buzzword to a real concept. The u stands for ubiquitous, defined in Wikipedia as "...Omnipresence is the ability to be present in every place at any, and/or every, time; unbounded or universal presence. It is related to the concept of ubiquity, the ability to be everywhere at a certain point in time".
But what is it all about related to clinical practice?
More information to come here about research on clinical use of sensors in body area network scrutinizing the IEEE 802.15.4 standard.
Other actual radio standards are Bluetooth, WiBree (when available), ZigBee stack radios and UWB-IR.
An example of ongoing research can be found at bwsn.net
My approach to uHealth is to look at not only the technological aspects, but how uHealth tools can be implemented in clinical settings to improve care and include the perspective of nurses, physicians and patients.