midsyr is a system designed to develop or exercise the muscles of the human body as a whole , it comprises the development of the muscles of the chest , upper limbs and lower limbs by a simultaneous resistance effort . the user will be forced to develop the body muscles exerting resistance against the urging force the system will propose , and this having been previously programmed . the midsyr system allows the user to choose the degree or intensity of effort to unfold , sequence or alternation of the exercise of the session , the duration thereof , the pauses and the total time of the session . the midsyr system has a power source , which in this case is a linear electromagnet appropriately selected , which being fixed transmits force towards to two , front and rear sliding magnetic metal bars of magnetic field reception and at the same time , ten wires running to the traction points on the user &# 39 ; s body , suitably located to obtain the desired effect . two cables run to the torso , one in front and one in the back , four cables run to the upper extremities , two above and two in the bottom of the forearms and four wires run to the lower extremities , two of them above and two in the bottom of the thighs . the two wires for the torso are attached to a removable band placed around the user &# 39 ; s chest , as it was said , one in front and the other in the back . the four wires to the upper extremities also are joined to removable bands placed on the user &# 39 ; s wrist , two above ( left and right forearms ) and two below ( left and right forearms ). the four cables to the lower extremities are also joined to removable bands placed in the user &# 39 ; s thighs , two above ( left and right thighs ) and two below ( left and right thighs ). the five wires , which run towards the body above and back parts come out from the electromagnet towards the back area of the same and are connected to the rear slider . while the five wires that run to the body bottom and above parts , they run over the electromagnet and are linked to the previous slider bar . on the left and right support bases , on which the user is located , in each there is fixed band to enter the feet , so that these are predicated upon them . the cables are attached to the bars by hooks anchored in them for easy removal . the sliders move supported by two shafts , left and right , supported on the speakers with bronze core attached to the bars and move with them sliding axially on the shafts . both groups of wires are actuated alternately . the electromagnet is governed by controlling the intensity of the supply current , its polarity and supply times through unplc logo ( plc acronym for programmable logic controller ), which is connected to a touch screen ( touch panel ) or keyboard , allow the user to program the required workout . the electromagnet can connect directly to the electricity supply , the voltage of 220 v , 110 v , 380 v or any other , providing the electromagnet for each case . combinations of traction as front - back and below - above can be modified by changing the order of connection of the cables and their installation . the sliding magnet bars are electromagnets but of low intensity , polarized permanently to be attracted and repelled by the main electromagnet depending how it changes polarity . the electrical system has a cooling system that includes a motor , a fan and a compartment with openings for air input and output properly positioned ( fig6 ). cables have a metal chain segment in the end of the connection to the slide bars , with the aim of regulating the length according to the users height and for this to deactivate the cables , disengaging them easily . the control of the force provided by the electromagnet is performed by a current - current transducer , which regulates the intensity of the supply current to the electromagnet according to the signal sent by the plc logo to 4 - 20 ma . controlling the polarity alternation in the main electromagnet is achieved by two relays installed in the power supply line according to fig4 . the alternation is controlled by the plc logo , along the length of each feeding , pauses and total time . the alternation can be programmed or not by the user . finally , the plc logo is connected to a keyboard or a visual communication screen , whereby the sequence can be programmed to the effect required . the connection diagram of the control elements is shown in fig4 . to avoid impact between the sliding bars and the electromagnet , there are rubber dampers assembled around the support shaft . when the system is activated , the user will experience a traction solicitation forward or backward in the torso and up or down in the upper and lower extremities , which must withstand during the activity of the electromagnet according to previously selected program . midsyr exercises virtually every muscle a person needs to develop . taking the advantage of meeting this objective simultaneously thus becoming the most effective body - building , and have a lot of options to choose from in terms of intensity of solicitations , sequence , pauses or the total time of the workout , being therefore very well suited for rehabilitating muscle areas or limbs of the body that require it . the system has a safety circuit to interrupt the operation of the equipment in case of need , which consists of an electric switch that the user has in hand , it is a “ dead hand ,” that is , it is active while oppressed , if the user releases the switch , interrupts the electrical current that feeds the electromagnet , stopping midsyr operation . according to what is shown in fig1 , midsyr consists of the following main parts . the main electromagnet ( 1 . 2 . 1 ) which is the source of power and attracts or repels the bars induced of field reception ( 1 . 2 . 2 ), which transmits the force of the main electromagnet to the cables ( 1 . 3 ), support shafts ( 1 . 2 . 3 ), which allow to the induced bars to be supported and slide on the sliding speakers ( 1 . 2 . 4 ). the rubber dampers ( 1 . 2 . 5 ) prevent impacts between adjacent components , the wires ( 1 . 3 ) which bear the force generated by the main electromagnet to the different body parts . the removable bands ( 1 . 3 . 11 ) used to quickly connect or disconnect the wires to the user &# 39 ; s torso or extremities , structural folding frame ( 1 . 5 ), comprising by lower circular support ( 1 . 5 . 1 ), the left ( 1 . 5 . 2 ) and right support bases ( 1 . 5 . 3 ) where the user stands . the fixed bands for the left ( 1 . 5 . 4 ) and right foot ( 1 . 5 . 5 ), which hold firmly to the person when the requested force of the cables are directed upwards . the telescopic column with female ( 1 . 5 . 6 ) and male parts ( 1 . 5 . 7 ) regulate the height of the equipment , the top circular support ( 1 . 5 . 8 ) carrying two folding arms , left ( 1 . 5 . 9 ) and right ( 1 . 5 . 10 ). guideline pulleys for cables ( 1 . 5 . 11 ) used for the direction changes of cables in their route , transport wheels ( 1 . 5 . 12 ) to facilitate the transportation of the equipment . the lower end lock of the column ( 1 . 5 . 13 ) keeps it fixed , the left hinged arm lock ( 1 . 5 . 14 ), the right hinged arm lock ( 1 . 5 . 15 ) and column height lock ( 1 . 5 . 16 ) keep each component in a fixed position . the lower hinge ( 1 . 5 . 17 ) in which the telescopic column pivots , the top hinge ( 1 . 5 . 18 ) in which the top circular support pivots . the control system ( 1 . 4 ), composed of the keyboard or sensitive control panel touch ( 1 . 4 . 1 ) used for programming each session , the plc logo ( 1 . 4 . 2 ) is the brain of the equipment . the safety switch ( 1 . 4 . 3 ) that shuts down the equipment to an emergency , the relay 1 ( 1 . 4 . 4 ) and relay 2 ( 1 . 4 . 5 ) control the rotation of the main activity of the electromagnet , and the current - current transducer ( 1 . 4 . 6 ) controls the strength of the electromagnet by providing intensity toward it . similarly , it consists of a group of ten cables ( 1 . 3 ), the removable bands ( 1 . 3 . 11 ), the ventilation system ( 1 . 6 ), consisting of the motor ( 1 . 6 . 1 ), the fan ( 1 . 6 . 2 ) and the ventilation duct ( 1 . 6 . 3 ). midsyr is folding equipment normally , favoring transport and storage . the lower circular support ( 1 . 5 . 1 ) is the equipment &# 39 ; s base . considering the position of the control panel ( 1 . 4 . 1 ) as the front of the machine , the lower circular support ( 1 . 5 . 1 ) has welded left ( 1 . 5 . 2 ) and right ( 1 . 5 . 3 ) support bases aligned forward and inwardly ; these bases used for the user to stand on them , inserting the feet under the left ( 1 . 5 . 4 ) and right ( 1 . 5 . 5 ) fixed bands . in the back of the lower circular support , ( 1 . 5 . 1 ) there is a fixed lower hinge ( 1 . 5 . 17 ) connecting the female section to the telescopic column . within the housing of the female section ( 1 . 5 . 6 ) of the telescopic column is placed the male section ( 1 . 5 . 7 ) of the same , which can move inside or outside of that . at the upper end of the male section of the telescopic column is fixed a second hinge ( 1 . 5 . 18 ) in which the upper circular support is attached ( 1 . 5 . 8 ). this support carries the control panel ( 1 . 4 . 1 ) that when the equipment is unfolded will be located in front thereof . in addition , this support ( 1 . 5 . 8 ) has left ( 1 . 5 . 9 ) and right ( 1 . 5 . 10 ) folding arms . these arms have a curvature radius that coincides with the inside curvature radius of the upper circular support ( 1 . 5 . 8 ), so that when folded remain close to this along the full extent . the components of the device are dimensioned such that in folded mode , that is , the shortened telescopic column and the upper circular support folded along folding arms will remain within the lower circular support , thereby achieving to occupy very little space for storage . according to fig5 , the deployment of the equipment is done by following these steps : raise the telescopic column back ( 1 . 5 . 6 and 1 . 5 . 7 ) pivoting it within the lower hinge ( 1 . 5 . 17 ). place the bottom end lock of the column ( 1 . 5 . 13 ). place the top circular support ( 1 . 5 . 8 ) in position pivoting it on the top hinge ( 1 . 5 . 18 ) of the telescopic column . raise the left ( 1 . 5 . 9 ) and right ( 1 . 5 . 10 ) folding arms . place the necessary locks ( 1 . 5 . 14 and 1 . 5 . 15 ). place the male part ( 1 . 5 . 7 ) of the telescopic column and the upper circular support ( 1 . 5 . 8 ) to the appropriate height by removing the male section ( 1 . 5 . 7 ) up . place the column height lock ( 1 . 5 . 16 ). midsyr is a system that has required electronic peripheral elements to make the desired choice for any exercise session , through a keyboard or touch screen , with which you can program each of the parameters . level or degree of force to unfold , alternation of requests ( above - below down - front ), the pauses , the duration of each action and the total time of the session . once it is programmed , the system will control the electromagnet to provide the selected force to the cables and the complete sequence of programming made for the workout . as an example , we can mention a workout that defines the following parameters : the effect of traction in the wires of the midsyr can be also generated of various ways , for example using an electric motor , hydraulically or pneumatically . to use a motor , the electromagnet may be replaced by a suitably chosen electric motor , which will transmit force through a pulley to the ten wires that carry to the traction points in the users body , as described above . the five wires leading up to the drive - behind and the five wires leading to drive down - front , they will be wrapped in the motor &# 39 ; s pulley in opposite directions , that is , clockwise and anticlockwise respectively , depending on the motor position . in this case , there will be the necessary peripherals , such as a variable frequency drive ( vfd ), which serve to control the torque or force delivered by the engine . and a plc logo unit , which the user can program the system using a keyboard or a touch screen ( touch panel ) choosing his / her workout also the intensity , duration of the solicitation , the pauses , the alternation and total time , similar to that previously described . in the case of using a hydraulic system , actuated pistons may be employed by an oil or water pump driven by an electric motor , in this case providing a pressure regulator at the output of the pump , achieving to manage the force delivered to the cables by the hydraulic pistons . the sequence of steps of the program for a workout can be programmed on a plc logo unit and a keyboard or a touch screen panel , similar to the previous case . to use a pneumatic system , an air compressor driven by an electric motor can be used to maintain a constant pre - determined pressure in a small buffer tank , which in turn will provide pressurized air to the pneumatic cylinders so that they transmit the strength to the cable assemblies . a plc unit and a keyboard or a touch screen panel , similar to the previous cases , will program the sequence of steps of the program for a workout .