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Flow and Immersion are states of extreme concentration on an activity. For Serious Games, games which focus on achieving learning effects in players, high Flow and Immersion during gameplay can help improve these learning effects. Both Flow and Immersion are currently only measured using questionnaires, which is both delayed and subjective. This work introduces a study which aims to further the understanding of how Flow and Immersion are linked and to ease future work towards a new measurement method using physiological data.

The bone drilling process is characterized with a set of input and output parameters. The first ones define the conditions of the process execution and the second ones determine the outcome. The input parameters feed rate and drill speed have the most importance for the outcome, namely thermal and mechanical damages of the bone tissue. In manual drilling the surgeon controls the input parameters regarding his experience. The control of these parameters and the achievement of their optimal values can be successfully realized only under robotized execution. This work presents basic characteristics of orthopedic drilling robot ODRO as well as a new drill speed control algorithm.

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