This warmup routine can be done by women and those who are beginning to get back in shape after many years of inactivity. It is low impact on the joints, no weights or machines are needed. Warmup for 10 min. and increase the time if you want to turn it into a cardio session.Freddie has founded Freddies Modern Kung Fu in 2009, an online Martial Arts Academy on youtube, that expresses his interpretation of Bruce Lees Tao of Jeet Kune Do. His private underground school is located in Chicago, IL. Fitness and Philosophy lessons are all open to the public. Survival technique lessons are only open to official disciples. All techniques are scientifically proven to be effective and are aimed towards unarmed street survival combat. Freddie hand selects disciples to personally train that have the proper discipline and compassionate heart to become successful in his art. If you are interested in becoming an online disciple of Freddies Modern Kung Fu, check his playlist Becoming a Disciple and email Freddie at freddiesmodernkungfu@live.com to determine if this art is right for you. Freddie is also available for personal and private instruction in Chicago, IL. Check out Artistic Wisdom by Wise Flow: www.amazon.com