Physical education teachers are not just jocks with a clipboard. Kinesiology departments are loaded with science type courses. As a major, you are required to take biology, anatomy & physiology, physics, math...and these are just the prerequisites. Upper division courses are even more daunting and demanding, such as anatomical kinesiology, tests & measurements, motor development through the lifespan, physiology of exercise, motor learning & performance, biomechanics...just to name a few plus all the labs that go with all these courses. In addition to those tough science courses, physical education majors have to know, perform, and teach a wide range of sports. This is done by taking the theory courses, such as theory of gymnastic and tumbling, theory of racquet sports, theory of water sports, folk dance theory, theory of basketball, theory of baseball, theory of soccer, theory of volleyball, theory of tack and field, theory of aerobics and weight training and many many more. Then there are the humanity type KHP courses like history of sport, psychology of sport, principles of sports management, and philosophy of sport and physical education. A physical education major must be a good teacher. In addition to all the applied teaching in all the theory courses, there's an adapted physical eduction course (working with children with disabilities), field study (visiting physical education classes in school settings), and curriculum (putting together lesson plans and unit plans to develop an entire school curriculum). AND last but not least, physical education majors usually take health supplement courses, such as genetics, health and wellness in school settings, nutrition, and first aid and CPR (and not a 4 or 6 hours course, but an entire quarter or semesters worth of fist aid and CPR).
SO, the next time someone says something derogatory about a physical education teacher, let that person know that that physical education teacher had to work just as hard or harder for his or her bachelor of science degree as a one-subject, classroom teacher.