The present disclosure relates to a system and method of detecting activity by a wheelchair
user. In one aspect, a method comprises collecting motion data of a user device located on …

2015-03-02 Assigned to APPLE INC. reassignment APPLE INC. ASSIGNMENT OF
ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RAGHURAM …

Systems and methods are disclosed for tracking physiologi cal states and parameters for
calorie estimation. A start of an exercise session associated with a user of a wearable com …

A relationship relating a load of exercise and a user's aerobic capacity may be determined
as follows. A processor circuit of a device may retrieve, from a memory, a prior probability …

Improved techniques and systems are disclosed for determining the components of
resistance experienced by a wearer of a wearable device engaged in an activity such as …

In one aspect, the present disclosure relates to a method including obtaining, by a heart rate
sensor of a fitness tracking device, a heart rate measurement of a user of the fitness tracking …

Disclosed systems and methods relate to determining an intensity level of an exercise using
a photoplethysmogram (PPG) sensor. A method of determining an intensity level of an …

A method and a system for determining an energy expenditure of a user while practicing
yoga are described. A heart rate sensing module can measure the user's heart rate. A …

In one aspect, the present disclosure relates to a method including obtaining, by a fitness
tracking device, a plurality of heart rate measurements of the user over a period of time …

A method and a system for determining an energy expenditure of a user by detecting
unmeasurable loads using heart rate and work rate are described. Time-stamped heart rate …