Automated monitoring of exercise devices

A monitoring arrangement for use with an exercise device, the monitoring arrangement comprising:

• an inertial measurement device configured to detect an exercise activity of the exercise device;
• an activity measurement device separate from the inertial measurement device, the activity measurement device having an active mode and a disabled mode, the activity measurement device being operable to quantify the exercise activity of the exercise device when in the active mode, and the activity measurement device using less power when in the disabled mode than in the active mode;
• and
• a control unit configured to:
• detect, via the inertial measurement device, a start of the exercise activity;
• cause the activity measurement device to operate in the active mode upon detecting the start of the exercise activity;
• and
• operate the activity measurement device to generate measurement data that represents the exercise activity when in the active mode;
• wherein the activity measurement device is defaulted to the disabled mode to save power.