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The cardiovascular changes like increase in heart rate (HR) and mean arterial pressure(MAP) following isometric contraction (sustained hand grip) are mediated largely by the sympathetic nervous system which is activated by both central command to autonomic system and by reflexes arising within the contracting muscle .Body mass index (BMI) has been used since long to asses health and obesity .But BMI has the limitation of not distinguishing between fat and fat free mass. Hence the validity of BMI as an indicator of body fat in cardiovascular risks is recently challenged. So the present study was taken up with an objective to find out the cardiovascular changes during sustained hand grip and their relation with BMI, body fat percentage (BF%) , fat free mass(FFM) and fat free mass index(FFMI).The study included 50 healthy young adults ( 31male & 19female) of age group 17-25 yrs. Their height and weight were measured. Basal heart rate and blood pressure were recorded. BF% was measured by OMRN body fat Monitor. They were subjected to hand grip at 30% max. Voluntary contraction (MVC) for 3 minutes. HR & BP were recorded at the end of 3 min . SBP&MAP showed significant correlation with FFM and FFMI but it was insignificant with BMI.

A Correlative Study of Cardiovascular Response to Sustained Hand Grip in Healthy Young Adults with Fat Free Mass Index