We are looking to recruit a motivated team of runners who are extremely physically fit both in terms of running at speed and endurance to be part of Martin Creed's Work No. 850 which opened at Tate Britain on 1 July 2008.

Work No. 850 centres on a simple idea: that a person will run as fast as they can every thirty seconds through the gallery. Each run is followed by an equivalent pause, like a musical rest, during which the grand Neoclassical gallery is empty.

You will be expected to sprint for a distance of approximately 86 metres through the gallery. You must be able to complete the 86 metre sprint in less than 15 seconds. At the end of the sprint you will walk back to the start point and repeat the sprint approximately every 2 minutes (ie around 15 sprints) during a ½ hour period maintaining a consistent speed for each sprint.

For our core team of runners we are looking for a minimum commitment of 4 x ½ hours sessions per day with rest breaks in between. We need you to be able to commit to at least 3 days a week (could include weekends) until 16 November 2008.