FIG. 1 is a front elevational view of the portable trainer, showing our novel design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a perspective view of the portable trainer of the present invention as shown affixed to a door frame and being used by a person exercising.

The broken lines shown in FIG. 7 are for illustrative purposes only and form no part of the claimed design.