A system and method is provided for enabling the reuse of algorithms in multiple application frameworks with no alterations required of the algorithm once it is developed. The push architecture operates on top of a non-push protocol to combine notifications from multiple data sources. The foot cradle has two complimentary supporting surfaces against which the foot surfaces rest. A breakable membrane is also placed in the conduit so as to be separated when the second luer connector is coupled to this luer connector. Compared with a conventional tread for \u201cGreen Tires\u201d which is reinforced with a silica of higher specific surface area, the tread of the invention has an improved compromise of performances.