Definition With physical laws, we try to improve and optimize the individual swimming styles even further. These include static buoyancy, hydrodynamic buoyancy and the various ways of moving around in the water. It uses biomechanical principles and physics. Static buoyancy Almost everyone manages to drift on the water surface without any buoyancy aid. This apparent … Physical laws in swimming
Laws for bodies gliding in water A body moving in water produces various complicated effects that need to be explained to understand swimming. Forces arising in water are divided into braking and driving forces. The total resistance, which counteracts the human body in the water, consists of three forms: The frictional resistance is caused by … Laws for bodies gliding in water | Physical laws in swimming
Body shapes and flow Not the frontal area of a body as previously assumed, but the ratio of frontal area to body length plays the most important role in the resistance in water. This can be illustrated by the following example. If you pull a plate and a cylinder with the same front surface through … Body shapes and flow | Physical laws in swimming
Drive concepts Conventional drive concept: With the conventional drive concept, the body parts used for propulsion are moved in a straight line and in the opposite direction to the swimming direction (actio = reactio). Large masses of water are moved with increasing speed but little propulsion (paddle wheel steamer). Classical drive concept: drive by means … Drive concepts | Physical laws in swimming
Definition Today’s dolphin swimming developed in the 1930s when swimmers started breaststroke, simultaneously bringing their arms forward above the water surface. This arm action was combined with a conventional breaststroke. The resulting combination was and is still used today in the German Swimming Association (DSV) as butterfly swimming. In 1965 the technique of dolphin swimming … Dolphin Swimming
Definition Breaststroke is one of the oldest swimming styles and is used particularly often in the national area. Nevertheless it is one of the most difficult techniques in swimming. The frequent application in the national area is connected by the DLRG and with it connected rescue thoughts. According to international competition regulations, it was initially … Breaststroke
If you are also interested in other swimming styles and their techniques, then visit our swimming topicThe swimmer is almost in the glide position. The head lies between the arms with the line of sight towards the pool floor. The legs are lower than the hips to initiate the undulating movement. The body lies stretched … Movement description breaststroke (undulation technique)
The swimmer “lies” in the water, the left hand dives into the water with stretched out arm, fingertips first. The view is directed towards the bottom of the pool. The right arm is at the end of the pressure phase. The right arm is lifted out of the water. The upper part of the body … Movement description crawl swimming
Definition From the classical breaststroke in supine position (old German backstroke), the today’s backstroke developed, which is similar to the crawl in supine position. The currently applied backstroke is characterized by a constantly changing rolling motion around the longitudinal axis of the body. The chin is slightly lowered towards the chest and the view is … Backstroke
Competition rules We swim distances of 50 to 200m. The swimmers must push off in a supine position at the start and at every turn. Swimming over the entire distance, except for the turn, is only allowed in the supine position. After the start and after each turn the swimmer may be fully submerged for … Competition rules | Backstroke
Freestyle swimming is the type of swimming in which there is no predetermined movement pattern to be fulfilled. In the freestyle competition the swimmer may swim any swimming style except in the positional swimming. The swimmer is allowed to swim any swimming style except breaststroke, dolphin or backstroke. In freestyle and crawl competitions, however, only … Crawl Swimming
Error The typical mistakes in crawl swimming are: The arms are stretched forward and can therefore quickly cramp. Stretched arm moves through the water. This results in worse leverage. The arm does not pass under the body, but sideways, which leads to serpentines while swimming. Legs are too deep, thus the water resistance increases and … Error | Crawl Swimming
