Method and apparatus for measuring rowing skill

A system for providing real-time performance feedback on a rowing machine, the rowing machine comprising a load unit 1 coupled to a support track, a seat slidably coupled to the support track, a handle 3 coupled to the load unit arranged to move relative to the load unit 1 by a pulling action 5 on the handle, and a foot stretcher 4 coupled to the support track arranged to receive a pushing action thereon, the system comprising: a first sensor 13 configured to measure a first parameter indicative of the pulling action on the handle; a second sensor 11 configured to measure a second parameter indicative of the pushing action received by the foot stretcher 4; and a data processing unit, DPU, configured to determine a relationship between the pulling action on the handle and the pushing action received by the foot stretcher 4 based on the first and second parameters. The foot stretcher 4 is rigidly coupled to the load unit 1, the load unit 1 is slidable on the support track via rollers (18, fig 4) and the second sensor measures velocity of the load unit 1 relative the support track.