I claim the ornamental design for a reduced strain toilet seat, as shown and described.
FIG. 1 is a top plan view of a reduced strain toilet seat;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side view thereof; and,
FIG. 6 is a right side view thereof.
The broken line drawings of attachment and stand-off hardware shown in all figures are for illustrative purposes only and forms no part of the claimed design.