determine the importance of fins in swimming.which type of bones joint can be seen in knee and shoulder?
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If you’re like most swimmers, your kick might be the worst part of your swim training. Whether it’s with a kick board or in streamline, you seem to go absolutely nowhere. This has less to do with your leg strength and more to do with your kick technique.
A proper kick technique (flutter) is narrow and compact. The best kick is short and fast, rather than big and powerful. Your legs are essentially straight and the power is generated from the hips. Toes should be pointed. The weakest part of the kick that fins help improve, is the up-kick.
The ‘up-kick’ motion of the kick that engages your hamstrings, glutes and lower back muscles. Adding resistance to this range of motion helps improve your technique by providing you with the positive muscle reinforcement (and propulsion) to make you more efficient and faster.
Diarthroses (freely movable).
Also known as synovial joints, these joints have synovial fluid enabling all parts of the joint to smoothly move against each other. These are the most prevalent joints in your body. Examples include joints like the knee and shoulder.
Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation. Fins first evolved on fish as a means of locomotion
The knee joint is a synovial joint which connects the femur (thigh bone),
The shoulder is made up of three bones: the scapula (shoulder blade), clavicle (collarbone) and humerus (upper arm bone). Two joints in the shoulder allow it to move: the acromioclavicular joint, where the highest point of the scapula (acromion) meets the clavicle, and the glenohumeral joint.