Badminton Fitness Training Type (13) 10 straight and 10 cross 20×3 sets or 40×3 sets up 1 down up 2 down up 3 down up 4 cross down up down up down up 1 down up 2 down up 3 down up 4 down up 5 down up 6 down up 7 down up 8 down up 9 down up up 1 down up 2 down up 3 down up 4 cross down up down up CoachingBadminton.com Lee Jae Bok