The Body’s Circadian Rhythms Has An Influence On Blood Indicators In The Exercise

Purpose:Studying the body’s circadian rhythm(moring and afternoon) changes have influence on the blood indicators in the body exercise.Revealling body exercise cause the different change of blood indicators that is WBC RBC LY PLT BT and so on in the time of morning’s body exercise or atternoon’s body exercise.Discussion in which time does exercise is better for your health.Methodes:Selecting seven college students(mean age:22±2old, weight:65±6kg, height:172±3cm) who are health do twice exercise that is the same intensity in the differen time(AM:5:00and PM:5:00).The subjects come the laboratory and are measured at five o’clock in the AM.Measuring their HR,BP and weight,then beginning exercise.The HR Gradually gets to140±2次/min in the five minutes,sustainning40minutes,in the meanwhile observing variation of HR and BP, after the exercise the subjects rest60minutes.Collecting blood indicators which are before the exercise’s,after the exercise’s and after resting’s and detectioning WBC,LY,RBC,HCT,HB,PLT,CK,BT,UR and so on.At the same time measuring the height and urine volume before and the exercise.After a week the subjects come the laboratory and do the twice experiment,The experiment time,intension and processing is the same to the first experiment.Does the T test to the related indexes which are measured in the AM and PM.Do the analysis of variance to the related indexes which are measured in the time of before the exercise,exercising and rest. Data statistics use SPSS13.0.Result:Exercising in the morning led to significant weight loss than it in the afternoon (Morning:0.76kg;Afternoon:0.52kg; p<0.05), Plasma capacity in the morning also reduced obviously than it in the afternoon at the same time (Morning:APV=-6.9;A fternoon:ΔPV=-6.3; p<0.05), While urine volume in the afternoon was more than it in the morning(Morning:64.29ml;Afternoon:94.29ml;(p<0.05).There were significant differences between morning and afternoon among WBC before the exercise (p<0.01) lymphocyte(p<0.01),red blood cell (p＜0.01)、Hemoglobin (p<0.05)、blood platelet (p<0.05)、hematocrit (p<0.05)、creatine kinase (p<0.05)、cholestenone (p<0.05), which suggested that these indicators were affected by day circadian rhythms. WBC, RBC, HB,HCT,CK,CHOL in all movements increased significantly. Red blood cells (AM:5.01×10(?)12个/L (P＜0.05);PM:4.89×10(?)12个/L,p<0.05),HCT (AM:45.7%;PM:44.7%,p<0.05), CHOL (AM:4.30mmol/l;PM:4.04mmol/l,p<0.05) in the morning rose significantly than them in the afternoon, while white blood cells (AM:7.97×10(?)9个/L;PM:7.47×10(?)9个/L,p<0.01) and lymphocyte (AM:2.76×10(?)9个/L;PM:2.68×10(?)9个/L,p<0.05) in the afternoon rose significantly than them in the morning. After exercise, the morning white blood cells (AM:5.73×10(?)9个/L;PM:9.18×10(?)9个/L,p<0.01) and lymphocyte (AM:1.69×10(?)9个/L;PM:2.06×10(?)9个/L,p<0.05) went an apparent decline, which were lower than them before exercise. While white blood cells in the afternoon was still higher than it before exercise levels(p<0.01),lymphocyte Basically returned to normal pre-exercise.Conclution:1.Circadian rhythms have an importan influence to Plasma volume and humor sap.Showing when does the same strength of excerise,the weight loss more,Plasma volume loss more obvisouly and the amount of urine is litter,revealling exercise leads to the loss of water more seriously.2.Wbc and Ly is to reduce after exercis in the moring.Their amount is lower than the basis’s,then appearring immunosuppression.reavelling exercise is more easy to damage to the immune system.3.In the morning exercise leading to the rise of RBC’s amount and HCT’s value reveals hemoconcentration more seriously in the morning,then blocking the blood flow and affecting the efficiency of blood oxygen transport.4.Exercise cause the rise of CK is more seriously in the morning,reavelling exercise is more easy to damage muscle in the morning.5.The change of total cholesterol shows to exercise in the morning is more easy to cause the rise of BT,reavelling exercise Induceding cardiovascular diseasesInduced cardiovascular diseases is more higher,so it is unfit to exercise in the morning.