CN102512139A

CN102512139A - Maximal oxygen uptake testing and evaluating apparatus

Info

Publication number: CN102512139A
Application number: CN2011103862035A
Authority: CN
Inventors: 乔德才; 卢湘岳; 毛振明; 刘晓莉; 侯莉娟; 王宗兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-29
Filing date: 2011-11-29
Publication date: 2012-06-27
Anticipated expiration: 2031-11-29
Also published as: CN102512139B

Abstract

The invention relates to a maximal oxygen uptake testing and evaluating apparatus. Maximal oxygen uptake is one of main indexes for evaluating a body strong and healthy degree. According to the existing maximal oxygen uptake testing and evaluating apparatus, bradycardia caused by myocardial dysfunction generated by ATP (adenosine triphosphate) synthesis reduction due to lactic acid accumulation under the endocardium when some people is in a hypoxia state because of individual difference can not be eliminated, and if the maximum oxygen uptake is figured out according to the heart rate at the moment, the numerical value can be remarkably on the high side. In order to reduce errors, an oxyhemoglobin saturation detection device and an oxyhemoglobin saturation and heart rate matching circuit are arranged in the existing maximal oxygen uptake testing and evaluating apparatus. Therefore, the apparatus can be used for achieving the following two effects: the corresponding heart rate when the hypoxia condition occurs can be judged, and the condition of calculating the maximum oxygen uptake according to the low heart rate is avoided; and meanwhile, the degree of utilizing oxygen in a human body by blood can be monitored, and the physique of people to be tested is cooperatively judged.

Description

A kind of maximal oxygen uptake test and appraisal appearance

Technical field

The present invention relates to a kind of electronic installation of maximal oxygen uptake test and appraisal appearance, especially a kind of device that reduces the maximal oxygen uptake measurement error and show blood oxygen saturation.

Background technology

Existing maximal oxygen uptake test and appraisal appearance is when work, and a shilling measured carries out the motion of certain intensity, records the post exercise heart rate again, calculates maximal oxygen uptake according to cardiotachometer then.Its advantage is that measurement is convenient, apparatus is terse, helps popularizing.Yet investigate taking the photograph the oxygen process and can knowing of health by when motion: when quantity of motion was big, oxygen consumption was violent; The hypoxia phenomenon appears in body; What at first occur during hypoxia is that the compensatory heart rate quickens, and heartbeat and cardiac output increase, and blood circulation is with the deficiency of the compensatory oxygen content of hyperkinetic state.The maximal oxygen uptake that calculate according to cardiotachometer this moment is more correct., because individual variation, some people is when the hypoxia situation, because the endocardium lactic acid will is piled up, ATP is synthetic to be reduced, and produces cardiac muscle and suppresses, and causes bradycardia, if calculate maximal oxygen uptake according to cardiotachometer this moment, numerical value is just obviously higher.

Summary of the invention

In order to reduce error, the present invention installs blood oxygen saturation checkout gear and blood oxygen saturation and heart rate matching device in existing maximal oxygen uptake test and appraisal appearance.Like this, just solved the problem of two aspects: pairing heart rate in the time of both can judging that the hypoxia situation occurs, avoid calculating maximal oxygen uptake according to low heart rate, simultaneously, can monitor the degree that intravital oxygen is utilized by blood that sucks again, the collaborative body constitution of judging the measured.

Concrete scheme provided by the invention is: 5 functional units are constituted system's (see figure 1).5 functional units are respectively: blood oxygen probe 1, blood oxygen saturation monitoring circuit 2, proportioning assembly 3, heart rate input module 4, display module 5.

Blood oxygen probe 1 adopts infrared emission-receptor, and the blood flow of surveying under the finger skin contains the oxygen situation.Infrared emission-receptor can adopt dual wavelength, also can adopt three-wavelength.Its output signal is delivered to blood oxygen saturation monitoring circuit 2.Blood oxygen saturation monitoring circuit 2 converts corresponding blood oxygen saturation numeric data code into according to the signal from blood oxygen probe 1, is input to proportioning assembly 3.Meanwhile, heart rate input module 4 is input to proportioning assembly 3 coming the heart rate signal in prior art maximal oxygen uptake test and appraisal appearance to convert number into.Analyze simultaneously by the blood oxygen saturation data and the heart rate data of input for 3 pairs of proportioning assemblies; Judge and do not produce the heart rate that cardiac muscle suppresses; This heart rate data is delivered in the prior art maximal oxygen uptake test and appraisal appearance, and the blood oxygen saturation data are delivered to display module 5 show.

The invention has the beneficial effects as follows: can when the hypoxia situation occur, screen out and produce the heart rate that cardiac muscle suppresses, avoid the error of calculation of maximal oxygen uptake.And, can show measured's blood oxygen saturation data simultaneously.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is described further.

Fig. 1 is a block diagram of the present invention.

Fig. 2 is the blood oxygen probe circuit diagram.

Fig. 3 is the blood oxygen saturation monitoring circuit

Fig. 4 is proportioning assembly circuit figure.

Fig. 5 is a heart rate input module circuit diagram.

Fig. 6 is the display module circuit diagram.

All input, the label of outfan among the figure are all corresponding fully with the label in Fig. 1 block diagram.

The specific embodiment

Overall structure block diagram of the present invention is illustrated among Fig. 1.

In Fig. 1, frame 1 is a blood oxygen probe 1, and frame 2 is blood oxygen saturation monitoring circuit 2, and frame 3 is proportioning assemblies 3, and frame 4 is heart rate input modules 4, and frame 5 is display modules 5.

Blood oxygen probe 1 is installed in holding on the handle of maximal oxygen uptake test and appraisal appearance, corresponding to finger position.Blood oxygen probe 1 is surveyed the blood flow under the finger skin through infrared emission-receptor.Blood flow contain the oxygen situation, influence infrared light intensity, thus the intensity of influence output signal, this signal is transported to blood oxygen saturation monitoring circuit 2 through the delivery outlet H1 of blood oxygen probe 1.Blood oxygen saturation monitoring circuit 2 converts signal intensity into number, flows to proportioning assembly circuit 3 through delivery outlet Z1.At this moment, proportioning assembly 3 also simultaneously through from heart rate input module 4 delivery outlet P1, receives heart rate signal.Microprocessor in the proportioning assembly 3; Two paths of signals to input is analyzed; Screen out alopecia and given birth to the heart rate of myocardium inhibition, guarantee that the heart rate of normal physiological activity passes through, and calculate through the heart rate signal input K that delivery outlet h is transported to maximal oxygen uptake test and appraisal appearance.Simultaneously, the output data line a of proportioning assembly 3, b, c, d, e, f, g are transported to display module 5 with data, carry out special demonstration.The input port P0 of heart rate input module 4, reception sources is from the original heart rate signal of maximal oxygen uptake test and appraisal appearance handle.

Shown in Figure 2, be an embodiment of blood oxygen probe 1.Among this embodiment, D1, D2 are the infrared light transmitting tubes, are driven by transistor Q1 and Q2, and the wavelength of emission is respectively 595nm and 890nm.Also can be at the infrared light transmitting tube of a 735nm of parallel connection on D2 or D1.D3 is the infrared light receiving tube, and the wave-length coverage of reception is 660nm to 940nm.Infrared light transmitting tube and infrared light receiving tube are installed in holding on the handle of maximal oxygen uptake test and appraisal appearance, corresponding to finger position.Also can be clipped on the ear-lobe of user with the mode of ear clip.The infrared light that the infrared light transmitting tube is launched sees through the blood flow under the skin, after reflection or transmission, is received by the infrared light receiving tube.The signal that the infrared light receiving tube receives, input ic IC1 is then via the output of H1 end.

Fig. 3 is an instance of blood oxygen saturation monitoring circuit.From the signal of blood oxygen probe 1, be input to IC 2 from H1, convert digital back into and flow to proportioning assembly 3 through port Z1.

Fig. 4 is an embodiment of proportioning assembly 3.Two input ports are arranged among this embodiment, and reception is from the signal of blood oxygen saturation monitoring circuit Z1 port; Another receives the signal from heart rate input module 4 output port P1.After this two paths of signals is handled by IC3 and IC4 respectively; Get into microprocessor IC5 simultaneously; Software among the IC5 is differentiated, is analyzed two paths of signals; Screen out alopecia and given birth to the heart rate of myocardium inhibition, let uncontrolled heart rate signal pass through, and be transported to the heart rate signal input K of maximal oxygen uptake test and appraisal appearance via delivery outlet h.Microprocessor IC5 converts the numerical value of blood oxygen saturation into number, from a, b, c, d, e, f, the output of g port, removes to control display module 5.

Fig. 5 is an embodiment of heart rate input module 4.The original heart rate signal that is derived from maximal oxygen uptake test and appraisal appearance handle gets into IC6 from input port P0, exports proportioning assembly 3 to from port P1 after treatment.

Fig. 6 is an embodiment of display module 5.From a, b, c, d, e, f, each port level of g of display module 5, get into the IC7 of display module 5, remove to drive display screen through IC8, IC9 and manifest digital character.

Claims

1. device that is used to measure maximal oxygen consumption; Mainly constitute by blood oxygen probe (1), blood oxygen saturation monitoring circuit (2), proportioning assembly (3), heart rate input module (4), display module (5); It is characterized in that said blood oxygen probe (1) is to adopt fired infra-red component and infrared receiver component; Said blood oxygen saturation monitoring circuit (2) is according to from the signal of blood oxygen probe (1), converts corresponding blood oxygen saturation numeric data code into, and the output signal is delivered to the electronic circuit of proportioning assembly (3); Said proportioning assembly (3) is made up of microprocessor; After can be simultaneously the blood oxygen saturation data of input and heart rate data being analyzed; Screen out and produce cardiac muscle inhibition heart rate; And will not produce the heart rate data that cardiac muscle suppresses and deliver in the prior art maximal oxygen uptake test and appraisal appearance, simultaneously the blood oxygen saturation data are delivered to the intelligent parts that display module (5) shows; Said heart rate input module (4) is to convert the heart rate signal that comes from prior art maximal oxygen uptake test and appraisal appearance into number, and is transported to the electronic circuit of proportioning assembly (3); Said display module (5) is the number that receives from proportioning assembly (3), and converts number into numerical value and be presented at the electronic circuit on the liquid crystal display screen.

2. maximal oxygen uptake measuring device according to claim 1 is characterized in that when measuring maximal oxygen uptake, can also measuring blood oxygen saturation through blood oxygen probe (1).

3. maximal oxygen uptake measuring device according to claim 1 is characterized in that proportioning assembly (3) can screen out to produce the heart rate that cardiac muscle suppresses, and will not produce the heart rate data that cardiac muscle suppresses and deliver in the prior art maximal oxygen uptake test and appraisal appearance.