The ornamental design for an exerciseboard for push-ups, as shown and described.
FIG. 1 is a perspective view of an exercise board for push-ups;
FIG. 2 is a front view of the exercise board for push-ups;
FIG. 3 is a top view of the exercise board for push-ups;
FIG. 4 is a left-side view of the exercise board for push-ups;
FIG. 5 is right-side view of the exercise board for push-ups;
FIG. 6 is a rear view of the exercise board for push-ups;
FIG. 7 is a bottom view of the exercise board for push-ups;
FIG. 8 is a façade/front angular view of the exercise board for push-ups;
FIG. 9 is a bottom perspective view of the exercise board for push-ups; and,
FIG. 10 is a perspective view of the exercise board for push-ups as coupled to a cabinet.
The broken lines in FIG. 10 showing a cabinet are for the purpose of illustrating environmental subject matter only and form no part of the claimed design.