The ornamental design for a shell for monitoringmovement, as shown and described.
FIG. 1 is a top plan view thereof;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a perspective view thereof;
FIG. 6 is a rear view elevational thereof; and,
FIG. 7 is a right side elevational view thereof.
The article takes the form of a shell, which can be fixed (e.g. with an adhesive) on the skin of a human. The shell encloses a device that can monitor movement in space. Accordingly the article is a shell for monitoring movement.