JPH05317456A - Step type training machine - Google Patents

Abstract

PURPOSE:To give an optimum movement load to an athlete and to effectively and safely perform a physical movement with oxygen by adjusting the driving speed of right and left crank pedal parts independently driven upward and downward by the legs of an athlete and controlling the movement load applied to the athlete by a control part. CONSTITUTION:An entire construction is composed of a frame part A, a crank pedal part B, a driving part C and a control part D. The driving speed of the crank pedal part B which is independently driven upward and downward by right and left legs of an athlete M is adjusted by the driving part C. A movement load applied to the athlete M is controlled by the control part D. Thus, arms with steps are shortened and the entire construction of the crank pedal part can be made extremely small and compact. A burden born by the athlete can be decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention implements training in which a step with a predetermined load is applied while detecting a pulse of an exerciser, and data of age, sex, and weight which are input in advance before the training and training are performed. Performing aerobic exercise effectively and safely by giving optimum exercise load to the exerciser by varying and controlling the step load even during training based on various data such as the pulse value of the exerciser In addition, the present invention relates to a step-type training machine capable of performing constant-velocity exercise (isokinetic exercise) by stable exercise speed control and performing training without burdening the joints of the exerciser.

[0002]

2. Description of the Related Art In recent years, various training machines aimed at improving physical fitness for young and old people have been developed. For example, a so-called stair climbing type equipped with a pair of left and right crank pedals that can be driven up and down, and transmitting the vertical drive of the left and right crank pedals to the eddy current load means to control the vertical drive of the crank pedals. Although a training machine is known, since it was composed of separate left and right springs as a mechanism for returning the left and right crank pedals of a conventional stair climbing type training machine,
The reaction force due to the springs on the left and right legs of the exerciser was different, and the exerciser could not perform the correct climbing of stairs.

In order to solve the above-mentioned problems, the applicant of the present invention separately equips the left and right crank pedals with springs as a mechanism for returning the left and right crank pedals. Focusing on durability, we developed a crank pedal return mechanism equipped with continuous springs to keep the reaction force of the left and right crank pedals constant,
We have proposed a step-type training machine equipped with an L-shaped crank in order to keep the reaction force of the left and right crank pedals constant and minimize the change in spring tension.

[0004]

However, the step-type training machine of the previously proposed method of pulling back the left and right crank pedals with continuous springs has an L-shaped structure for the left and right crank pedals, and has a corner portion. Since the other end swings up and down by hingedly swinging the pedal mounted on one end, the reaction force of the left and right crank pedals is kept constant and the tension of the spring is changed. Although it is sufficiently effective to minimize it, the structure of the crank pedal is rather large, and load means for controlling the driving speed of the crank pedal that drives the left and right independently up and down. However, there is a problem that the placement of the robot is rather bulky and it cannot be said that it is a compact step-type training machine.

[0005]

In order to solve the above-mentioned problems, the present invention comprises a frame portion A, a crank pedal portion B, a driving portion C and a control portion D, and the foot of an exerciser. Thus, the driving speed of the crank pedal portion B that is independently driven up and down is adjusted by the driving portion C, and the exercise load on the exerciser is controlled by the control portion D.

[0006]

Since the above-mentioned structure is adopted, the arm on which the step is mounted can be shortened, and the entire structure of the crank pedal portion B can be made extremely small and compact.
In addition, the left and right independent crank pedal portion B that is driven up and down
Since the arrangement of the drive unit C for controlling the drive speed of the is stored in the center frame equipped on the base frame in a unit system, it is more compact than the conventional step type training machine. It will be possible. Further, by connecting the left and right steps with a single spring, the load of the vertical movement of the arm can be reduced and the vertical movement of the arm can be made smooth.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a step-type training machine according to the present invention will be described in detail below with reference to FIGS. 1 and 2 are perspective views showing an overall structure of a step-type training machine of the present invention and a main structure thereof.

The overall construction of the present invention comprises a frame portion A, a crank pedal portion B, a drive portion C (including a crank pedal returning mechanism), and a control portion D. The detailed configuration of each of the above units will be described below. The frame portion A includes a base frame 1 formed in a cross beam shape, a center frame 2 formed in a substantially cage shape provided on the base frame 1, and vertically in front of the base frame 1 at a constant interval. The upright post 3 and the rear of the base frame 1 are also upright substantially vertically with a constant interval, the upper part is bent toward the post 3 side, and the tip thereof is the post 3
And the side guard 4 connected to the upper end of the.

The crank pedal portion B is a base frame 1
Brackets standing upright in the vertical direction at a substantially central position in the vertical direction, a pivot shaft 12 and a link shaft 13 extending laterally and parallel to the bracket 11, and the pivot shaft 12 and the link shaft. The base ends are respectively pivoted to 13
It is composed of a pair of left and right arms 14 and links 15 that are vertically swingably arranged, and left and right steps 16 that are pivotally attached to the ends of the left and right arms 14 and links 15 so that their upper surfaces are always held in equilibrium. Has been done.

The drive section C is a drive shaft 22 arranged laterally across a pair of bearings 21 standing vertically on the center frame 2 arranged on the front side of the base plate 1 at regular intervals. Drive shaft 2
2, a pair of left and right free wheel sprockets 24 fixedly mounted on one side of the drive shaft 23, and a rotary shaft 25 inserted from the front into the space of the center frame 2. A speed increaser 28 having a sprocket 26 fixed to one side and a large pulley 27 on the other side, an eddy current load means 29 arranged below the speed increaser 28, the free wheel sprocket 24, and a speed increaser. 28 and the eddy current load means 29 are driven by the movement of the chain 30 whose one end is connected to the vicinity of each step 16 of the left and right arms 14, that is, the movement of both chains 30 that moves with the vertical swing of both arms 14. It is transmitted to a free wheel sprocket 24 that is inserted through the drive shaft 22 at a constant interval, and the free wheel sprocket 24 The rotation of the drive shaft 22 converted into the rotation in the direction is wound between the sprocket 23 arranged on one side of the drive shaft 22 and the sprocket 26 arranged on one side of the rotary shaft 25 constituting the speed increaser 28. The eddy current load means 2 is transmitted via the chain 31 to the large pulley 27, and the rotation speed increased by the large pulley 27 is passed through the timing belt 32 wound around the large pulley 27.
Timing pulley attached to the input shaft of 9 (not shown)
Is transmitted to the eddy current load means 29 to drive the eddy current load means 29.

By the way, the free ends of the left and right chains 30 each having one end connected to the both arms 14 are provided with two left and right free wheel sprockets 24 inserted through the drive shaft 22 and substantially at the center of the base plate 1. Two springs on the side of the same position, and one spring 34 wound via six pulleys 33, which are arranged at regular intervals on the left and right of the front position, are connected to both ends of the spring 34, respectively. The chains 30 can be smoothly moved along with the vertical swing of the arms 14.

The control section D is an arithmetic processing means 41 (hereinafter, referred to as a microcomputer in this embodiment) built in a housing 40 attached to a substantially central position formed in a U shape at the upper end of the side guard 4 described above. ), Pulse detection circuit 4
2. An alarm buzzer 43 and a display unit 44 arranged on the upper surface of the housing 40 (this display unit is, for example, a pulse value, a load level,
It is configured to display age, gender, weight, time, elapsed time, calories burned, type of training, etc.)
An input key 45 for inputting various data, and a rotation speed detector 46 of the eddy current load means 29 connected to the microcomputer 41 to the pulse detection circuit 42 via a lead wire arranged outside the housing. It is composed of a pulse sensor 47, a constant current power supply 48, and an interface circuit 49. Incidentally, by connecting the printer 50 via the interface circuit 49 to print out the various data, and further by connecting to an external host computer via the interface circuit 49, instead of key input, For example, data such as load level, age, sex, weight, time, elapsed time, calories burned, training type, etc. can be input from the outside, and it is also possible to have a function to output data such as training results. is there.

The operation of the step-type training machine according to the present invention will be described below based on the above configuration. First, the operation of the step-type training machine will be described. As shown in FIG. 1, the exerciser M uses the left and right step 1
Both feet are placed on 6, 16 and the weight is alternately applied to the left and right feet, and the left and right arms 14, 14 are stepped down. By this step operation, the left and right arms 14 and 14 rotate about the pivot shaft 12 as a fulcrum by a predetermined angle.

For example, the left arm 14 shown by the solid line in FIG.
However, when the left leg of Exerciser M is stepped down,
The chain 30 connected to the front of the step 16 of the left arm 14 is pulled down as the left arm 14 moves downward. Therefore, the free wheel sprocket 24 around which the chain 30 is wound rotates, and this rotation causes the drive shaft 2 inserted into the free wheel sprocket 24 to rotate.
Rotate 2 in one direction. The rotation of the drive shaft 22 is input to the large pulley 27 via a sprocket 23 fixed to one side of the drive shaft 22 and a chain 31 wound around a sprocket 26 mounted on a rotation shaft 25 of the large pulley 27. The rotation input to the large pulley 27 is accelerated to a predetermined number of rotations set in advance, and is passed to the timing pulley and finally to the eddy current load means 29 via the timing belt 32 wound around the large pulley 27. The eddy current load means 29 is transmitted to rotate the eddy current load means 29.

By the way, the end portion of the left chain 30 which is pulled out when the left arm 14 is stepped down has a spring 3
Since the right chain 30 is connected via 4 the movement of the left chain 30 is transmitted to the right chain 30 via the spring 34. Therefore, the right chain 30 is in the state of being pulled out rearward by the right arm 14 as shown by the solid line in the figure, but with the downward movement of the left chain 30, the spring 34 moves leftward, The right arm 1 rotating backward to pull the right chain 30
4 tries to move upward. That is, at the time when the stepping-down of the left arm 14 by the left foot of the exerciser M is completed, the exerciser M pulls up the right foot upward in accordance with the normal step motion, and releases the stepping of the right step 16 by the right foot. The right arm 14 pulled by the right chain 30 smoothly moves upward. Since the tension of the spring 34 that applies a constant tension to the left and right arms 14 is kept substantially constant, the durability of the spring 34 is improved.

When the stepping down motion of the left foot by the exerciser M is completed, the step 16 pivotally attached to the right arm 14 as described above moves upward, so that the exerciser M moves upward as the next operation. Step down on the right foot located at. When the exerciser M applies a load to the right step 16 with his right foot and steps down the right arm 14, the chain 30 connected to the front of the pedal 16 of the right arm 14 moves downward, and the chain 30
The free wheel sprocket 24 around which the
This rotation causes the drive shaft 22 inserted in the free wheel sprocket 24 to rotate in one direction. The rotation of the drive shaft 22 is performed by the step 1 on the left side described above.
Similarly to the stepping down of No. 6, the chain 3 wound around the sprocket 23 fixed to one side of the drive shaft 22 and the sprocket 26 mounted on the rotary shaft 25 of the large pulley 27.
It is input to the pulley 27 of the same size via 1. The rotation input to the large pulley 27 is accelerated to a predetermined number of rotations set in advance, and is passed to the timing pulley and finally to the eddy current load means 29 via the timing belt 32 wound around the large pulley 27. The eddy current load means 2 transmitted
Rotate 9.

Since the end portion of the right chain 30 which is pulled out when the right arm 14 is stepped down is connected to the left chain 30 via the spring 34, the right chain 30 is moved via the spring 34. Left chain 30
Be transmitted to. Therefore, the left chain 30 is left step 1
It is in the state of being pulled down by the movement of 6 downward,
Also in this case, as described above, as the right chain 30 moves downward, the spring 34 moves leftward and pulls the left chain 30, so that the left arm 14 rotating downward moves upward. try to. That is, at the time when the stepping down of the right step 16 by the right foot of the exerciser M is completed, the exerciser M pulls up the left foot upward in accordance with the normal step motion, and releases the stepping of the left step 16 by the left foot, The left arm 14 pulled by the left chain 30 smoothly moves upward.

That is, in the step-type training machine according to the present invention, the exerciser M alternately steps down the left and right steps 16 and 16 with the left and right feet while stepping up the steps for a certain period of time and by the control method described later. The load of the eddy current load means 29 is controlled while being controlled so as to satisfy the optimum condition of the exerciser M. Hereinafter, a method for controlling the eddy current load means 29 will be described in detail.

First, the exerciser M attaches the pulse sensor 47 to the body capable of measuring the pulse without any trouble in training such as earlobe, and then the input key 4 of the display device 44 shown in FIG.
From 5 onward, input personal data such as age, gender, weight, exercise time, etc. while checking each one on the display. Next, the exerciser M balances his body while gripping the handrail part composed of the side guards 4, 4 of the frame part A, and the display device 47
Start the training by pressing the start / stop key equipped on the and pressing the left and right steps 16 and 16.

During the exercise, the display unit displays the pulse value, the load level, the calorie consumption, and the elapsed time after the exercise is started in real time. Based on the personal data input as described above, the microcomputer 41 calculates the maximum pulse value, the upper limit pulse value, the target pulse value (general training or training for weight reduction) shown in FIG.

The maximum pulse is estimated from the input age and sex by the following arithmetic expression. (Male) HRmax = 209- (0.69 x age) (Female) H
Rmax = 205− (0.75 × age) The upper limit pulse value during exercise in this embodiment is set to the maximum pulse value −30, and the following control is performed.

Next, the warm-up step 1 is entered. Warming up step 1 (see step 1 in FIG. 6) A warming up load is required to raise the normal pulse rate before exercise to the target pulse rate value.

There is a relation between the exercise load and the pulse value, and if the appropriate exercise intensity is given, the target pulse value should be almost reached.
The magnitude of the required warm-up load differs depending on the physical strength level of the exerciser M. If the physical fitness level of the exerciser is known, the target exercise intensity may be determined based on it, but if the physical fitness level is not known, personal data such as age, gender, and weight can be used when determining the target exercise intensity. Warm-up is performed with a general standard exercise intensity that can be calculated in advance, and the physical fitness level is estimated from the pulse value obtained during warm-up to derive an appropriate target exercise intensity.

Based on the experiment, the relationship between the exercise load and the age at which the pulse rate is 50% of the maximum pulse rate (50% HRmax) was actually measured, and the standard exercise intensity was set according to the following formula from the result. (50% HRmax) standard exercise load calculation formula Step 1 target exercise load = A1- (B1 × age) A1: 10.0 B1: 0.09 (A1 and B1 are the age / exercise disclosed in FIG. 7) Intensity graph, both constants obtained from experiments.) Gradually increasing load of 20 seconds step for 3 minutes so as to be the standard exercise intensity at 50% HRmax obtained as described above, and then 1/3 of that time. The average pulse for a minute is measured, and the physical fitness level is divided into three levels to determine the target exercise intensity in the warm-up step 2. (Step 1 gradually increasing exercise load) Step value = Step 1 target exercise intensity ÷ 18 (step / 20 sec) The target exercise load of Step 2 is set as follows for three levels of physical strength. Level 1: When entering the target pulse zone (target pulse within ± 5 beats) within 3 minutes from the start of warming up. {Enter pulse control processing (no step 2)} Level 2: When the average pulse for 2 to 3 minutes after the start of warming up is 60 (60% HRmax) or more of the maximum pulse. {Step 2 target exercise intensity = Step 1 target exercise intensity +5} Level 3: When the average pulse for 2 to 3 minutes after the start of warming up is 60 (60% HRmax) or less of the maximum pulse. {Step 2 target exercise intensity = Step 1 target exercise intensity + 9} An eddy current load means 29 is applied with a 20 second step increasing load so that the exercise load of the exerciser reaches the target exercise intensity obtained above in 3 minutes.

When the exerciser's pulse value exceeds the upper limit pulse value calculated above, the alarm buzzer 43 issues an alarm. Further, when the upper limit pulse value is exceeded for a certain period of time, the training is finished. When the pulse value during warm-up is greater than the target pulse value minus 5 calculated above: The braking load level of the eddy current load means 29 is lowered by 2 steps, and pulse control is entered. When it is small: Gradually increase the load for 3 minutes in steps of 20 seconds and measure the average pulse for 1 minute for 2 to 3 minutes at that time. When the measured average pulse value is larger than the value of 60% of the target exercise intensity set in the above, the value is changed to a value obtained by adding 5 to the target exercise intensity. When it is equal to or smaller than: Change to a value obtained by adding 9 to this target exercise intensity.

Next, the warm-up step 2 is entered. (See FIG. 6, step 2) Warming-up step 2 (gradually increasing exercise load) The 20 second step increasing load is controlled by the eddy current load means 29 so as to increase to the target exercise load of step 2 changed in 5 minutes. The exercise load is gradually increased at the same slope until the target pulse rate is reached. Step value = (Step 2 target exercise load−Step 1 target exercise load ÷ 15 (step / 20 sec) Again, when the pulse value during exercise is larger than the value of the gradually increasing pulse value minus 5: Exercise intensity by the eddy current load means 29 2
Step down. When it is small: Again, the eddy current load means 29 controls the 20 second step increasing load so that the exercise strength by the eddy current load means 29 reaches the target exercise strength changed as described above in 5 minutes. The step-wise increasing exercise intensity is obtained by the following equation. Step gradual exercise intensity = (Step 2 target exercise intensity-Step 1 target exercise intensity) ÷ 15 (step / 20sec) Also, if it does not become larger than the target pulse value minus 5 in 5 minutes, it becomes the target pulse value minus 5 or more. Step gradual increase until.

Next, the pulse control is started. (See FIG. 6, automatic control) Pulse control The pulse value is monitored every 20 seconds, and when the target pulse of -5 is passed for the first time, the exercise load during warming up is reduced by two steps. Further, from the exercise load at this time, the one-step exercise load for pulse control suitable for the physical strength level of the exerciser is determined by the following formula. (Exercise load step value for pulse control) Step value = (exercise load x 0.3) / 20 (step / 20sec) Exercise load: Exercise load at the end of warming up. After that, measure the pulse value every 20 seconds and set the target. Difference in pulse value (Δ
HR = HR-THR) is obtained, and control is performed under the following conditions with the dead zone in the range where ΔHR is ± 5. When ΔHR> 10, decrease 2 step exercise intensity 5 <ΔHR ≤ 10 decrease 1 step exercise intensity -5> ΔHR ≧ -10 increase 1 step exercise intensity When ΔHR <-10 2 step exercise intensity Raise 10, then go into cooldown. (See FIG. 6, cooldown) Cooldown When the preset time has elapsed or when the start / stop key is pressed, a one-minute cooldown is performed to end the training.

That is, the exercise intensity is lowered every 20 seconds in steps of 1/3 of the final exercise intensity. If the upper limit pulse value during exercise is set to the maximum pulse value of -30 and exceeds the upper limit pulse value, the alarm buzzer 43 sounds an alarm to the exerciser, and if the upper limit pulse value exceeds 20 seconds or more, the program is compulsorily programmed. To finish. When the calorie consumption is displayed on the display device 44, the calorie consumption value is calculated by the following calculation.

Calculation of calorie consumption The calorie consumption is calculated by the following calculation formula. Calorie consumption = number of rotations of eddy current load means x body weight (kg)
× 9.8 × (1 / 0.323) × 0.329 (Kcal) 9.8: Gravity velocity 1 / 0.232: Exercise efficiency 0.239: Calories per w

[0030]

As described above, the step-type training machine of the present invention has the frame portion A and the crank pedal portion B.
The driving speed of the crank pedal portion B, which is composed of the driving unit C and the control unit D and is vertically driven independently by the foot of the exerciser, is adjusted by the driving unit C to reduce the exercise load on the exerciser. Since the control unit D is configured to control, the arm on which the step is mounted can be shortened, and the entire structure of the crank pedal unit B can be made extremely small and compact. In addition, the arrangement of the drive portion C for controlling the drive speed of the crank pedal portion B that is independently driven up and down is stored in the center frame provided on the base frame in a unit system. Compared with the step-type training machine of, the compactness is possible in this respect as well. In addition, the left and right steps are connected by a single spring to reduce the load of the vertical movement of the arm, and have various excellent effects such as smoothing of the vertical movement of the arm.

Further, since the driving speed of the crank pedal portion which is vertically driven independently by the foot of the exerciser is adjusted by the load means to accurately control the exercise load applied to the exerciser, the burden imposed on the exerciser is reduced. Will be reduced. In addition, since the left and right arms are connected by a single spring, when the arms alternately move up and down, the tension of the springs pulled by the left and right arms is kept substantially constant, improving the durability of the springs. Can provide high quality step training machine.

Further, by carrying out the exercise with a weight load, which is a daily exercise load, at a constant speed, it is possible to carry out the training in a state where the physical load of the exerciser is small, and at the same time, the exercise load becomes an effective aerobic exercise. It is possible to set a target pulse rate at, and to control the exercise load so as to maintain the target pulse rate. In particular, a warming-up process is introduced in the training process, and based on the physical fitness level of the exerciser measured during the warming-up process. In addition, stable and highly accurate pulse control is possible by controlling the pulse, so by changing the target pulse,
It is also possible to carry out training corresponding to various trainings such as weight reduction training and rehabilitation.

Further, it has an excellent effect that the training effect can be confirmed by measuring the average exercise intensity during the automatic control.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of a step-type training machine of the present invention.

[Fig. 2] is a plan view of a main portion of a step-type training machine.

FIG. 3 is a block diagram of a control unit of a step-type training machine.

[Fig. 4] Panel configuration diagram of the control unit

[Fig. 5] Flow chart of the control unit

FIG. 6 is a graph showing an exercise load setting state of the step-type training machine.

FIG. 7 is a graph showing experimental data.

[Explanation of symbols]

 A frame part 1 base frame 2 center frame 3 post 4 side guard B crank pedal part 11 bracket 12 pivot shaft 13 link shaft 14 left and right arms 15 left and right links 16 step C drive part 21 pair of bearings 22 drive shaft 23 sprocket 24 free Wheel sprocket 25 Rotating shaft 26 Sprocket 27 Large pulley 28 Speed increaser 29 Eddy current load means 30 Chain 31 Chain 32 Timing belt 33 Pulley 34 Spring D control section 40 Housing 41 Arithmetic processing means 42 Pulse detection circuit 43 Alarm buzzer 44 Display device 45 Input key 46 Rotation speed detector 47 Pulse sensor 48 Constant current power supply. 49 Interface circuit 50 Printer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Ito 3-16-9 Kanda, Chiyoda-ku, Tokyo Combi Co., Ltd.

Claims (6)

[Claims] 1. A frame portion A, a crank pedal portion B,
The drive speed of a crank pedal B, which is composed of a drive unit C and a control unit D and is vertically driven independently by the foot of the exerciser, is adjusted by the drive unit C to control the exercise load on the exerciser. A step-type training machine configured to be controlled by part D. 2. The frame portion A comprises a base frame formed in a cross beam shape, a center frame formed in a substantially cage shape provided on the base frame, and at a predetermined interval in front of the base frame. It consists of a vertically installed post and a side guard that is installed at the rear of the same base frame at a substantially constant interval and is substantially vertical, the upper part is bent toward the post side, and its tip is connected to the upper end of the post. The step-type training machine according to claim 1, which is configured. 3. A bracket in which the crank pedal portion B is provided upright at a substantially central position of the base frame in the vertical direction at regular intervals, and a pivot shaft and a link shaft extending laterally and parallel to the bracket. And a pair of left and right arms and links having base ends pivotally attached to the pivot shaft and the link shaft and swingably arranged up and down, and upper surfaces of the left and right arms and the tips of the links are always kept in equilibrium. 2. The left and right steps pivotally attached as described above.
Step training machine. 4. A drive shaft in which a drive section C is arranged laterally across a pair of bearings standing vertically in a vertical direction on a center frame arranged forward of the base plate, and the drive shaft. Sprocket fixedly mounted on one side, a pair of left and right free wheel sprockets also inserted through the drive shaft, and a sprocket fixed on one side of the rotary shaft inserted from the front into the space of the center frame. The speed increaser having a large pulley on the other side, the eddy current load means arranged below the speed increaser, the free wheel sprocket, the speed increaser and the eddy current load means are driven by the left and right sides. A free wheel sprocket in which the movement of a chain with one end connected to each step of the arm is inserted through the drive shaft at regular intervals. The rotation of the drive shaft, which is transmitted and converted into rotation in one direction by the free wheel sprocket, is transmitted between the sprocket arranged on one side of the drive shaft and the sprocket arranged on one side of the rotating shaft constituting the speed increaser. By transmitting the rotation to the large pulley via the wound chain, and transmitting the rotation speed increased by the large pulley to the timing pulley mounted on the input shaft of the eddy current load means via the timing belt wound on the large pulley. The step-type training machine according to claim 1, wherein the step-type training machine is configured to drive the eddy current load means. 5. The free ends of the left and right chains, one end of which is connected to the both arms, are provided with left and right free wheel sprockets inserted through a drive shaft, and at the same position as the two at approximately the center position of the base plate. Two springs on the left and right sides of the arm are connected to both ends of a single spring wound through two pulleys, and two pulleys arranged at regular intervals to the left and right of the front position. The step-type training machine according to claim 1, wherein each chain is configured to be smoothly moved in accordance with. 6. A control section D is U at the upper end of the side guard.
The processing unit (microcomputer) built in the housing attached to the character-shaped approximately central position, the pulse detection circuit, the alarm buzzer, the display unit arranged on the upper surface of the housing, and various data An input key for inputting, a rotation speed detector of eddy current load means connected to the microcomputer or the pulse detection circuit via a lead wire arranged outside the housing, a pulse sensor, a constant current power supply, and an interface circuit. The step-type training machine according to claim 1, characterized in that