Jumping jacks... hit em! 1... 2... 3... Now we've got you feeling so pumped up, let's talk exercise and Apple.

A new Apple patent spotted by AppleInsider seems to suggest the Cupertino firm is working on a system which will allow iPhones and other connected devices to detect when you're working out.

The patent itself is titled "Method and Apparatus for Automatically Adjusting the Operation of Notifications Based on Changes in a Physical Activity Level."

In layman's terms it means when your iPhone, iPod, iWatch etc detects that you're exercising the device can automatically change some settings - such as switching on Do Not Disturb - to ensure you're not distracted.

Just the start?

While "Do Not Disturb" is mentioned frequently in the patent application, the setup could feasibly be rolled out to a wider selection of modes, allowing you to automatically customise your iDevice during a gym session.

The system will have to be able to distinguish between a proper workout and a short burst of activity, but it seems Apple is already on top of this. The filing states: "a short burst of activity - e.g., running to catch a bus - is not mistaken for the beginning of an exercise workout,"

It does raise questions over what other activities Apple may get future iDevices to look for, from detecting when you're in a car to knowing you're getting into bed - it could all get very Big Brother.