Recovery Blood Pressure Patterns following Cold Pressor Test (one of the Autonomic Testing Protocol) in Relation to Aerobic Fitness Levels

The aim of the study was to compare the recovery blood pressure patterns following cold pressor test in relation to aerobic fitness (VO2max) of high fitness (n1=35) and low fitness (n2=35)groups of high altitude male youth. The purpose of the study was to compare between the high fitness group (HFG) and low fitness group (LFG) in regard to recovery blood pressure (RcvBP) following cold pressor test (CPT) of high altitude male youth, which will be useful for evaluation, monitoring grading, and groupingof their aerobic fitness.The high and low fitness groups were determined by VO2max ranks of 242 healthy male youth samplesof Kashmir (attitude: 6070 feet/1850 meters. The study was conducted on 70 samples among which top 35 ranks were considered in HFG and bottom 35 ranks were considered in LFG. The age of the subjects ranged from 18 to 23 years. Data was collected using a standard mercury sphygmomanometer and a stethoscope was used to record the blood pressure of the subjects at various timings of cold pressor test  (one of the autonomic testing protocol) and by using insulator box and a thermometer for ensuring the temperature of cold water at 4ocentigrades.  The selected variables were age in years, body weight in kilograms (B.Wt.), height in centimeters (Ht.), resting heart rate (HRrest), Basal Blood Pressure (BslBP), pulse pressure (PP), mean arterial pressure (MAP), change of systolic blood pressure at one minutes of cold pressor test (CPT1CSBP), change of diastolic blood pressure at one minutes of cold pressor test (CPT1CSBP), systolic blood pressure at one minute of cold pressor test (CPTSBP1),diastolic blood pressure at one minute of cold pressor test (CPTDBP1), systolic blood pressure at two and half minutes of cold pressor test (CPTSBP2.5), diastolic blood pressure at two and half minutes of cold pressor test (CPTDBP2.5), systolic blood pressure at five minutes of cold pressor test (CPTSBP5) and diastolic blood pressure at five minutes of cold pressor test (CPTDBP5), For statistical analysis the collected data was computed with mean, standard deviation,coefficient of variance and independent‘t’ test. The major findings reflect significant difference between HFG and LFG in regard to VO2max (t = 47.66), (r=0.99); CPTCSBP1Min (t = 3.87), (r=0.42); and CPTCDBP1Min (t = 5.94), (r=0.58). None of the other variables showed a significant group difference in their means neither had any conclusive effect size of group differences. The study concluded that HFG having better recovery of Blood Pressure Patterns than that of LFG and The recovery of Blood Pressure Patterns Following Cold Pressor Testwas faster in HFG than that of LFG.

Key Words: Blood Pressure, Cold Pressor Test, Heart Rate, High Altitude, Kashmir.

Author: Sajjad Ahmad Bhat, Bharat Kumar & Dhananjoy Shaw

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