Still Struggling in the Water? You Need Significant Thrust to Swim Smoothly
People often say 'streamlining' is for fast and easy swimming, but streamlining itself requires sufficient propulsion. If your propulsion is insufficient, or your time is disproportionate to the propulsion you can generate, you will not be able to move forward.
Propulsion
Swimming propulsion refers to the force that pushes the body forward while swimming.
Scenarios where propulsion is generated and where it is not generated
Forward swimming means moving forward, as it generates a pushing force. The maximum power in swimming comes from leaps or side kicks. Ideally, we glide smoothly and use force to kick the wall, without losing the pushing force from the wall kick. However, due to frictional resistance, the speed will gradually decrease and eventually lead to stopping, at this point we need to slide our limbs to create new propulsion.
So, when is the scenario for generating power?
- Now is the time to move water with our limbs.
- Grasp the water in front of you, walk backward, and then kick.
Scenarios where propulsion is not generated? That is, the conditions are not met above
For example
- Arm movement (moving the arms back to their original position above the water surface) may be movement, but it is movement made while outside the water, and there is no propulsion.
- During streamlining, the arms extend forward in the water, this does not mean we are creating new power, this is due to the propulsion generated by the previous hand and foot work.
Propulsion, streamlining and speed
Because there is propulsion, we can streamline it and make it easier.HoweverIf the streamlining time is too long, the power will gradually decrease and eventually decline. What does this mean?Streamlining will not generate propulsion initially, but because streamlining is based on previous propulsion, the body will move forward during streamlining.If you compare the propulsion generated by hand and foot kicks to the conserved strength, you will feel that the speed gradually decreases during streamlining, and will eventually stop.
When propulsion is exhausted, it stops. At this point we need to pay attention that when propulsion decreases, when the streamlining speed gradually decreases, the next foot kick or hand grasp will generate propulsion and will continue to move forward without sinking.By the way, the shorter the distance between the generation of propelling force and the generation of the next propelling force, the faster the speed will be.
In a 50m race, the pool speed is very fast, almost without streamlining. Repeatedly generate propulsion to find the maximum swimming speed. Conversely, the longer the streamlining time, the harder it is to obtain the maximum swimming speed.
In practice, we can calculate the number of actions (how many times we swim), and then according to the number of times, we can determine whether the action increases or decreases to judge the effect of a single swim. Analyze this is a way to increase propulsion or improve streamlining skills. If we don't care about the swim time, we can obtain fun by increasing streamlining time and reducing the number of strokes.
Summary: Not only streamlining 'long' but also 'walk' waterIf we don't have enough propulsion, even if we streamline, we will not be able to swim smoothly. At the same time,
Improving streamlining posture (streamlined body) is an effective way to improve propulsion during streamlining. On the other hand, increasing propulsion is to increase absolute reserve strength. Don't make the streamlining time between two actions too long.
Combining theory and practice, lay a solid foundation for sports, improve sports skills, avoid sports injuries, I am Coach Teacher, thank you for your attention, I hope to receive your messages, let us exchange and progress together.#Spring Sports Power#
