There are many different simulators for sports. Some software-controlled models look more like a spaceship than a regular treadmill. Along with ultramodern developments, very simple shells familiar from childhood, such as a sports rope, do not lose their relevance.
Story
The first mention of it dates back to ancient times, to 129 AD. Climbing a rope trained strength and endurance perfectly. Later, the exercise was singled out as a separate type of gymnastics program. From 1896 to 1932 even Olympic awards were played.
At first, the lifting height was 14 meters, the winner of 1896 was able to complete the task in 23.4 s. Then the height was reduced to 7.62 m, the Olympic record - 6.7 s.
A sport climbing rope was reborn in the 90s of the last century in the Czech Republic, where national level competitions are held annually. The record for overcoming a projectile 8 meters long is only 5.5 seconds.
In sports
Products are different in thickness, method of weaving, material of manufacture. Children's sports rope, as a rule, of small diameter. A small handle is not able to securely fix a thick rope. In its manufacture, cotton fiber is used, soft and durable, it can be dyed in any color. Children are happy to learn such a simulator for three years. It helps strengthen the muscles of the hands, develops dexterity and dexterity. Ropes for a sports corner (for children) are sometimes made with knots over a certain distance for the convenience of children.
Tugging requires special strength from the product. Efforts are simultaneously made by a group of people, sometimes several dozen. It is wrapped with tape on both sides in order to protect the fibers from tearing. Length - not less than 33.5 meters, according to existing rules, one team should consist of at least 8 players.
Sports rope is great for losing weight and intense training of athletes. Crossfiters use the horizontal option, practicing swings, punches, throws. One end of the projectile is securely fixed in the wall or floor, the free ends with a special anti- slip coating (so as not to rub your palms and ruffle) are picked up. The rope is used massive, 6-10 meters long.
Requirements
The definition of a rope sounds like this: a strong, thick rope made of synthetic, metal or vegetable fibers intertwined in a certain way. Despite the different intended use of the projectile, it should be:
- anti-allergenic;
- smooth, but not slippery;
- Do not heat up during downhill;
- durable;
- thick enough (in diameter).
All products undergo tensile testing. This is an elementary safety requirement when using a rope.
Material
Materials are divided into two groups: plant and synthetic. Each of them has its advantages and disadvantages:
- Jute. An annual plant up to 4 meters long grows in China, India, Egypt. A sports rope is weaved from 3-4 veins according to the technology worked out for centuries. Modern technology allows you to provide the necessary thickness and strength. Characteristic:
- ecologically pure;
- resistant to ultraviolet;
- antistatic;
- wear resistant;
- has a small weight.
- Cotton. Ropes for a sports corner (children's) are made of this material. Characteristic:
- excellent hygiene indicators;
- elastic;
- resistant to relatively high temperatures;
- does not accumulate static electricity;
- poorly tolerates moisture (susceptible to decay);
- there is no breaking of fibers (with bends);
- has an attractive appearance;
- weighs little;
- resistant to breaking load;
- wear resistant.
- Sisal. Woven-twisted ropes are made from fibers of agave leaves, growing in Kenya, Brazil, Tanzania. Characteristics:
- durable;
- environmentally friendly;
- durable;
- light;
- elastic;
- soft.
- Manila Abaca, or manila, is a natural fiber extracted from a textile banana. It grows in the Philippines and the Moluccas. Characteristics:
- environmentally friendly;
- hygroscopic;
- durable;
- he has a minimum degree of slip;
- high tensile strength.
- Polypropylene This is an artificial material, multifilament fiber or film fibrillated thread. Characteristics:
- smooth;
- resistant to bending;
- possesses the increased resistance to hostile environment;
- light;
- wear resistant;
- does not decay;
- elastic;
- poorly tolerates direct sunlight, deformation reaches 15% (rope elongation).
Fields of application
A braided or twisted product with a minimum diameter of 8 mm can be considered a rope. Everything that is thinner refers to ropes or cords. The scope is very extensive. Ropes can be divided into groups:
- marine, used in shipbuilding, marine and river business;
- rigging (equipment on board);
- load-lifting, with their help they lift and move loads;
- towing; towing vehicles is impossible without them;
- decorative, they make out rooms, home decoration, furniture;
- sports rope as a projectile in individual disciplines and for training.
There are many more areas of human activity where it can come in handy. Despite the various technical characteristics, the ropes perform one task - they withstand the high loads imposed on them.
The choice
In specialized stores you can choose a suitable sports rope. The price depends on the material of manufacture, brand, length and diameter of the product. It ranges from 120 p. for one running meter up to 3000 r. and higher. Large selection and fasteners. It is purchased in kit or separately.
The main criteria are operating conditions. The following nuances should be taken into account: the method of fastening, room humidity, the purpose of use. A correctly selected shell will last more than one year and ensure safety during operation.