A system for remote controlled physical activity monitoring, the system comprising: a physical activity monitoring device comprising a controller, the physical activity monitoring device configured to monitor a physical activity of a user of the physical activity monitoring device; and an apparatus wearable on at least one body part of the user of the physical activity monitoring device, the apparatus comprising: at least one orientation measurer, wearable on the at least one body part of the user, the at least one orientation measurer configured to measure orientation of a body part wearing the orientation measurer during a physical activity of the user; a computer processor, associated with the orientation measurer, configured to derive monitoring control data from the measured orientation, the monitoring control data including an instruction to the controller of the physical activity monitoring device; and a data transmitter, associated with the computer processor, wherein: the data transmitter is configured to transmit the derived monitoring control data to the physical activity monitoring device; and the controller of the physical activity monitoring device is configured to control an operation of the physical activity monitoring device based on the monitoring control data, and thereby allowing the user to remotely control the monitoring of the physical activity of the user by the physical activity monitoring device. a physical activity monitoring device comprising a controller, the physical activity monitoring device configured to monitor a physical activity of a user of the physical activity monitoring device; and an apparatus wearable on at least one body part of the user of the physical activity monitoring device, the apparatus comprising: at least one orientation measurer, wearable on the at least one body part of the user, the at least one orientation measurer configured to measure orientation of a body part wearing the orientation measurer during a physical activity of the user; a computer processor, associated with the orientation measurer, configured to derive monitoring control data from the measured orientation, the monitoring control data including an instruction to the controller of the physical activity monitoring device; and a data transmitter, associated with the computer processor, wherein: the data transmitter is configured to transmit the derived monitoring control data to the physical activity monitoring device; and the controller of the physical activity monitoring device is configured to control an operation of the physical activity monitoring device based on the monitoring control data, and thereby allowing the user to remotely control the monitoring of the physical activity of the user by the physical activity monitoring device. at least one orientation measurer, wearable on the at least one body part of the user, the at least one orientation measurer configured to measure orientation of a body part wearing the orientation measurer during a physical activity of the user; a computer processor, associated with the orientation measurer, configured to derive monitoring control data from the measured orientation, the monitoring control data including an instruction to the controller of the physical activity monitoring device; and a data transmitter, associated with the computer processor, wherein: the data transmitter is configured to transmit the derived monitoring control data to the physical activity monitoring device; and the controller of the physical activity monitoring device is configured to control an operation of the physical activity monitoring device based on the monitoring control data, and thereby allowing the user to remotely control the monitoring of the physical activity of the user by the physical activity monitoring device. the data transmitter is configured to transmit the derived monitoring control data to the physical activity monitoring device; and the controller of the physical activity monitoring device is configured to control an operation of the physical activity monitoring device based on the monitoring control data, and thereby allowing the user to remotely control the monitoring of the physical activity of the user by the physical activity monitoring device.