Roller skating

Contents: Historical overview Forces that occur Propulsion forces, Thrust, Path and speed, The correct skating movement, Downhill, Stability, Braking force, Resistances - the energy sinks, Rolling resistance, Compression resistance, Sliding, Rolling resistance, Air resistance and streamlines ( aerodynamics), Progress in wind shadow, Rotational resistance of bearings The right equipment The skate, Hard parts, Soft parts, The frame, Special women's skates, The wheels, The rear brake, Bearings, Skate types, Children's skates, Fitness skates, Aggressive skates, Hockey skates, Speed skates , Protective equipment, Special equipment, Which skate is right for me?, Maintenance and care, Changing the wheels, Installing new wheels, Cleaning the bearings Effects on health In a nutshell, Avoiding injuries, Precautions, Applying the traffic safety regulations, Respecting road users, Roller skating in a sports hall, A s necessary conditions, Inspection, Danger sources, Overloading the spine, Painful back, Health and roller skating, Basic rules of training, Prevention of diseases, Performance Correct technique Basic skills, Stride, Angular position of the legs, Load on the legs by turning the feet, Walking on one leg, Upper body turning in the desired direction of movement, Getting used to the roller skates, Straightening, Balance, Stable position, Falling, The first steps, Pushing off and gliding, Turning, Appropriate arm-leg coordination, Braking, Snow plow, Grass stop, Corner brake, Braking for advanced riders, Tailgating, T brake, Endurance and energy-saving skating, Slalom - turning with counter-rotation, Cross step, Backward movement, U-turn, Spin while jumping, Pirouette, Braking for professionals, Powerslide, Hockey stop, Step jump, Uphill, Downhill, Overcoming small obstacles, Curb, Potholes and potholes on the asphalt, The finishing touches Different races Speed races, Marathon, Sprint, Downhill, Ska ter Cross, Summer slalom, Nordic blading, Night tours, Acceleration competition, Twenty-four hour competition, Aggressive skating, Street, Big half pipe, Team games, Roller hockey, Curling football, Inline frisbee, Inline basketball, Dances and formations, Developments, Cross-country skating, Walking skates, Aluminum wheels, Double-row ball bearing, Sail, Joint system, Lighting, Horn, On-board computer, Shock absorbers Appendix Small dictionary Addresses, contact information Source of images