FIG. 1 is a front elevational view of a massage chair, showing our new 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 right side elevational view thereof showing wires in broken lines;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a front view showing the massage chair when the pillow is moved to the upper part;

FIG. 9 is a front view showing the massage chair when the pillow is moved to the lower part;

FIG. 10 is a left side elevational view showing the massage chair when the backrest is inclined rearward;

FIG. 11 is a left side elevational view showing the massage chair when the footrest is extended;

FIG. 12 is a left side elevational view showing the massage chair when the backrest is inclined rearward and the footrest is extended;

FIG. 13 is a perspective view illustrating how an individual, shown in broken in lines, uses the massage chair; and,

FIG. 14 is a left side elevational view illustrating how an individual, shown in broken lines, uses the massage chair.

The broken line showings of the wires in FIG. 5 and the human form in FIGS. 13 and 14 are for environmental purposes only and form no part of the claimed design.