Modular physical activity monitoring system

A sealed removable puck, comprising:

• a processor;
• a communication interface coupled to the processor;
• at least one sensor comprising an inertial measurement unit including an accelerometer and an angular velocity sensor;
• a sensor interface coupled to the sensor;
• a physical interface configured for coupling to a receptacle;
• wherein the processor is configured to:
• identify, through information received via the physical interface when coupled to the receptacle, an activity-specific article to which the receptacle is attached;
• receive activity-specific sensor information through the physical interface;
• receive activity-agnostic sensor information from the sensor interface;
• and
• provide the received activity-specific and activity-agnostic sensor information wirelessly through the communication interface.

A system, comprising an activity-specific wearable article, the article comprising:

• a material;
• a receptacle coupled to the material, the receptacle structured to removably receive an activity-agnostic puck;
• and
• at least one activity-specific sensor coupled to the receptacle, the activity-specific sensor comprising one of, or a combination of:
• a piezoresistive ink disposed on the material of the article;
• or
• a piezoresistive material used as a portion of, or all of, the material of the article.

A non-transitory computer readable medium, comprising computer-readable instructions which, when executed by a computing device, cause the computing device to:

• receive a first activity plan;
• provide a first direction at a graphical user interface according to the first activity plan, the first direction indicating to position an activity-agnostic puck in a receptacle of a first activity-specific wearable article, and to perform a first activity associated with the first activity-specific wearable article;
• receive first information from the activity-agnostic puck, the first information including information related to performance of the first activity and an identification of the first activity-specific wearable article;
• receive a second activity plan;
• provide a second direction at the graphical user interface according to the second activity plan, the second direction indicating to position the activity-agnostic puck in the receptacle of the first activity-specific wearable article or in a receptacle of a second activity-specific wearable article, and perform a second activity;
• and
• receive second information from the activity-agnostic puck, the second information including information related to performance of the second activity and an identification of the first or second activity-specific wearable article.