- The 20 Minute Bodyweight Workout: Thinner & Stronger Without A Gym Membership (The 20 Minute Fitness Series) by C.N. Pal. Price: Free. Genre: Aerobics, Quick Workouts, Weight Training, Health, Fitness & Dieting, Sports & Outdoors, Training. Rated: 4 stars on 26 Reviews. 55 pages. ASIN: B00CSX1FII.