This article explains the arm movements of the backstroke in detail. At first, we will look at a video of Ryan Lochte swimming backstroke:
The arm stroke cycle of the backstroke can be divided into the following phases:
These phases are explained below.
To begin our discussion of the arm stroke phases, we will focus on the arm about to end its recovery.
The arm is fully extended and the palm is facing outward. The upper arm enters the water, then the elbow, forearm and hand follow along. The hand enters the water in front of the shoulder and with the pinky finger first.
The arm extends forward for a short time before starting the first downsweep. The entry should be gentle to avoid pushing water downward and forward with the arm, which would increase drag.
The first downsweep is nonpropulsive and prepares the arm for the catch. The arm moves downward and outward. The elbow flexes gradually. The palm and forearm are kept aligned and move into a backward and outward facing position.
The catch is the phase of the arm stroke where the swimmer starts to apply propulsive force. The catch occurs at the end of the first downsweep when the arm is bent about 90° and the forearm and palm are facing outward and backward.
The upper arm, lower arm and hand will keep their relative position over the next two phases of the stroke cycle and move as one big paddle.
While swimming backstroke, the first upsweep is the first propulsive phase of the arm stroke. During this phase, the whole arm moves backward, upward and inward as a unit.
The arm also rotates so that the forearm and palm change from a backward, downward and outward facing position to a backward, upward and inward facing position.
The first upsweep ends when the hand is near the water surface and at the level of the shoulder. Upper arm and forearm are still angled at 90° and the upper arm maintains a certain distance from the ribcage.
The second downsweep is the second propulsive phase of the arm stroke. The arm extends and moves downward, backward and outward. The hand moves from a position near the surface at the end of the first upsweep to a position much deeper than and away from the body.
The forearm is facing backward at the beginning of the downsweep and facing downward and outward at the end of the downsweep. So the forearm only pushes water backward at the beginning of the downsweep.
The wrist flexes during the downsweep, so the palm is facing backward and the hand is pushing water backward for as long as possible.
At the end of the downsweep, the arm should be extended and the palm facing downward and outward.
Depending on the swimmer's individual style, a third propulsive phase may be added at the end of the second downsweep. To do so, the palm is turned upward and backward and the arm moves upward, backward and inward toward the hip, pushing water backward and upward. Finally, the palm is turned inward to prepare for the release.
Swimmers that don't add a third propulsive phase directly move their arm upward toward the hip and turn the palm inward without pushing against the water.
The most common kind of release is done with the thumb pointing upward and the palm turned inward. No excessive force should be used during the release, otherwise water will be unnecessarily pushed upward, increasing drag.
If you watch Ryan Lochte's video above closely, you'll see that his palm is facing downward and forward instead of inward during the upsweep and release. This probably is a kind of small propulsive second upsweep, but it also adds some drag during the exit.
During the release the shoulder of the recovering arm is shrugged forward and upward and the arm exits the water, first at the shoulder, then the upper arm, forearm and hand follow along. This is facilitated by the fact that the body has rolled toward the other arm and the shoulder of the arm about to leave the water is already close to the water surface.
The recovering arm moves in a half-circle from the hip to an upward-pointing position to the overhead position where it enters the water again.
During the recovery, the arm rotates so that the palm moves from an inward facing position at the beginning of the recovery to an outward facing position at the end of the recovery, before entering the water with the pinky finger first.
During the recovery, the arm should be extended and neither too relaxed nor too tense. It should move forward using the momentum of the exit but also rest a bit after the propulsive underwater phases.
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By Christophe Keller, © 2010-2015 Enjoy-Swimming.Com. All rights reserved.