Physically, students benefit from improved reflexes, coordination, strength, stamina, flexibility, weight control, and cardiovascular fitness. Classes allow students to relieve stress, get in great shape, improve flexibility, and learn valuable lessons in self-defense, giving all students increased self-confidence & self-discipline to develop a positive attitude toward life.. Goodyear TaeKwonDo Academy is a full time martial arts training facility with lessons available Monday-Saturday. As a member you can attend lessons as often as you like and on the days that best fit your schedule. Our academy is run by full time martial arts professionals with numerous years of teaching and training experience.