With a 10 m diameter, your module would have to spin at ~1.4 radians/sec to get 1g at the floor. However, at head level, it will have dropped to ~2/3g, so you would have a 1/3 g difference between head and feet while standing. There is also the Coriolis effect to account for. If you are seated, the center of mass of your body is moving at a certain speed relative to the axis. When you are standing, in order to keep the same rotational rate, it has a smaller speed. If you go from a seated to standing position, your center of mass is going to want to keep moving at the same speed. The result is that you will feel a "force" that is trying to tip you over. Also, if you drop something, it will fall in a curve. This, and a changing g value, Would likely play havoc with your eye-hand coordination, especially if you are going back and forth between the spinning and zero g parts of the station.