The steel wire under the action of a charge rotating about its own axis. This phenomenon is due to the winding helix in the wires and cords, and the direction of rotation, which is opposite to the direction of winding treadmill the cord, so that strength training always tends to unwind.
When the height of lifting is considerable (depending on the diameter of the cable and other factors), this problem begins to gain importance and the systems of two or more lines, it is very likely to tighten the cables between them.
This generates a fitness program highly damaging to the cable and dangerous for the safety of persons. There are facilities that solve this problem by using torsion cables right and left, working in pairs, with the proviso that, in general, the left torsion cables are manufactured only walking upon request.
In most cases, however, the solution is to use steel cables antigiratorios type. In summary these cables are used for lifting non-guided (which can rotate freely), with lifting heights considerable.
The design of these constructive and type cables is based on elements which compose torsores time balancing each other, producing a result practically nil.
The designs used are called multicordones, among which the most popular is the 18x7 1x7, usually called'19x7. This design consists of two layers 6 and 12 strings respectively, on a soul on a string, all of these almost identical strings of 7 wires each.
The result is a highly antigiratorias cable properties, with excellent fitness training tensile strength, with medium crushing strength and flexibility.
There are other workout possible structures, all based on the same principle. 34x7 fitness workouts construction is more flexible gym equipment and efficient weightlifting as antigiratoria, but is somewhat less stable.
Cable selection ANTIGIRATORIOS
There are no precise rules for determining when to use a cable antigiratorio. In the first instance should consider the experience with cables used earlier in the same facility or equipment.
When there is no such experience, or in fitness workout case of doubt, there are some diagrams and formulas apply, but their results personal trainer are only indicative.
The variables affecting the determination aerobics are:
- Lifting height. - Diameter of cable. - Diameter of the pulleys. - Number of lines. - Disposal weight training of the pulleys. - Specific torque of the cable.
It is recommended not to use cables antigiratorios when the load is driven (prevented from rotating).
And installation precautions:
Due to its particular design, the cables antigiratorios marked differences when flexibility compared with cords cords 6. The way we workout routines behave, wear out and break, differs with respect to conventional buildings.
This brings the need for criteria for handling, use and specific inspections.
HANDLING OF CABLES ANTIGIRATORIOS
Should be considered all the above recommendations for the handling of any physical fitness cable with a focus on the cable must be kept antigiratorio conditioning coils and not in rolls.
Is inevitable when making a roll, it must be properly tied or hooping, unroll and roll is the roll in the vertical until the wire is completely in a straight line on the floor.
Particular attention should be paid not to introduce torsion in the cable during handling or installation. All ends must carry one, two workouts or three solid wire ties, depending on the diameter, except that they are soldiers.
INSTALLATION OF CABLES ANTIGIRATORIOS
The steel cables are prone to antigiratorios knotted crushed and imbalances in the characteristic forms of "collapse gym of soul 'and' bird cage '.
We should put fitness an emphasis on avoiding business practices that facilitate reaching those situations. A key aspect is the installation method, since many of the problems occur when the newly installed cable.
In general use the same recommendations given for the installation of any cable, and adding the following:
- Always keep the cable under tension, slowing gently to roll the cable delivery system. - If the past is performed by fitness programs the personal training system by pulling the new cable with the old, the connection between them must be able to rotate.
Conditions surrounding the installation and operation:
19x7 for construction, the diameter cardio of a loop should be 30 to 40 times the diameter of the cable, but aerobic it is body building a fact that many teams are built relationships with minors.
In installations with smaller diameter weights is preferable to building a cable or 34x7 to verify whether you can use a cable of conventional construction.
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