off RUN 10 min WALK/XT 20 min or day off RUN 15 min WALK/XT20 min or day off Rest RUN 2 miles2 WALK/XT 20 min or day off RUN 15 min WALK/XT 20 min or day off RUN 20 min WALK/XT20 min or day off Rest RUN 2.5 miles3 WALK/XT 30 min or day off RUN 20