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The combat side stroke uses the three main fundamentals of swimming: Balance: There are two things that affect your balance in the water - the head and lungs.Most people when swimming, especially when using breaststroke, will swim with their head up [citation needed] which forces their hips to sink down which is like they are swimming uphill and is a sign of being less comfortable.
Extended Arm Tow (unconscious victim): swimming sidestroke or breaststroke on their back, the rescuer holds the head with a straight arm, the hand cupping underneath the chin, and ensures that the mouth and nose are out of the water.
In ordinary swimming on the right side, the left arm moves gently in the water, almost at rest. [3] Then, when the used arm becomes tired, the swimmer turns on the other side, and the left arm works while the right arm rests. [3] The legs move in opposite directions with legs bent, and straighten as they come together.
The undulations create components of forward thrust complemented by a rearward force, side forces which are wasted portions of energy, and a normal force that is between the forward thrust and side force. Different fish swim by undulating different parts of their bodies. Eel-shaped fish undulate their entire body in rhythmic sequences.
The face-down swimming position allows for a good range of motion of the arm in the water, as compared to the backstroke, where the hands cannot be moved easily along the back of the spine. The above-water recovery of the stroke reduces drag, compared to the underwater recovery of breaststroke .
Backstroke swimming (amateur competition, non-optimal style) In backstroke, the arms contribute most of the forward movement. The arm stroke consists of two main parts: the power phase (consisting of three separate parts) and the recovery. [3] The arms alternate so that one arm is always underwater while the other arm is recovering.
Thrust production in these animals is produced via lift principles, much like in aerial flight. These birds essentially "fly" beneath the surface of the water. Because they have the dual role of producing thrust in both flight and swimming, wings in these animals demonstrate a compromise between the functional demands of two different fluid media.
Because of the direction of thrust is mostly in line with the diver, or slightly upwards, it is suitable for situations where disturbing the silt on the bottom can cause dramatic loss in visibility, such as inside wrecks and caves, and at any other time when the diver needs to swim close to a silty substrate. [2]