In some examples, a system for dynamically adjusting one or more workout outputs comprises a heart rate monitor operatively coupled to an automatic workout generator. In some examples, a method of altering one or more workout outputs comprises receiving, by a user interface, one or more workout inputs provided by a user and generating one or more workout outputs based on the one or more workout inputs. In some examples, the method further comprises dynamically altering at least one of the one or more workout outputs in response to the determined physical readiness indicator of the user. In some examples, the method further comprises displaying the one or more workout outputs to the user. In some examples, the physical readiness indicator is determined by analyzing heart rate variability data.

Systems and methods for enabling users to pause interactive content, such as streamed exercise classes, and return to the classes without compromising their class performance statistics or metrics are described. For example, when a user decides to pause (e.g., they have to quickly handle something), they may have their rank removed from a leaderboard, with the leaderboard passing the ranking to the next user of the activity, while the user is still placed on the leaderboard according to an approximated position or ranking.

A physiological monitoring system for noninvasively monitoring physiological parameters of a subject, comprising a fitness monitoring system for monitoring physiological parameters of a subject engaged in a physical activity, in accordance with one embodiment of the invention, includes (i) a monitoring garment adapted to cover at least a portion of a subject's torso, (ii) a magnetometer subsystem including a first magnetometer and a second magnetometer, wherein the first and second magnetometers are responsive to changes in distance therebetween, wherein the magnetometer subsystem is configured to generate and transmit a signal representative of a change in the distance between the first and second magnetometers, wherein the first and second magnetometers are incorporated into the monitoring garment, and wherein the first and second magnetometers are proximate to the subject's chest region when the monitoring garment is worn by the subject.

Systems and methods for enabling users to pause interactive content, such as streamed exercise classes, and return to the classes without compromising their class performance statistics or metrics are described. For example, when a user decides to pause (e.g., they have to quickly handle something), they may have their rank removed from a leaderboard, with the leaderboard passing the ranking to the next user of the activity, while the user is still placed on the leaderboard according to an approximated position or ranking.

Systems and methods for predicting/optimizing physical performance including: receiving a selection of one or more individual performance parameters for a future instance of an event, the individual performance parameters indicative of a desired physical performance; receiving a selection of one or more team performance parameters, the team performance parameters indicative of a physical performance of a team; collecting data related to the individual performance parameters and the team performance parameters from past occurrences of the particular event; identifying a subset of training parameters, from within a collection of training parameter data associated with past occurrences; and providing a training program.

Systems and methods for enabling users to pause interactive content, such as streamed exercise classes, and return to the classes without compromising their class performance statistics or metrics are described. For example, when a user decides to pause (e.g., they have to quickly handle something), they may have their rank removed from a leaderboard, with the leaderboard passing the ranking to the next user of the activity, while the user is still placed on the leaderboard according to an approximated position or ranking.