Blood Pressure And Your Health

Static Handgrip And Hypertension

Static handgrip and hypertension have shown that as a result of static handgrip exercise, blood pressure levels may rise. A lot of  reflex activity is  performed during static handgrip exercise. This activity  ultimately augments heart rate, sympathetic nerve activity, arterial pressure and cardiac yield.

As a result of static handgrip exercise, the renal circulation attains the highest flow of blood per tissue weight. Several studies are performed to decide the renal blood flow reaction to static handgrip exercise in healthy and hypertensive humans. This is done to explain the reflex mechanisms.

Graded handgrip exercise and post handgrip circulatory arrest are carried out to see the mechanism that controls renal blood flow during static exercise. One of the findings of the studies is that renal cortical blood flow lessens and cortical vascular resistance rises as a result of static handgrip exercise in case of healthy people.   

As a consequence of static handgrip exercise, it is seen that there is maximum contraction of arterial blood pressure and heart rate in untreated patients of essential hypertension and also in healthy people. However, there is no significant difference between hypertensive patients and healthy humans in the intensity and duration of handgrip and the augments of heart rate and blood pressure are the same. Static handgrip and hypertension shows that absolute intensities of blood pressure are significantly higher in hypertensive patients.

Increases in vascular resistance and arterial blood pressure are thus accounted in hypertensive patients as a result of physical exercise. This has been established through a study where 17 males with mild hypertension and 10  normotensive subjects were examined. Each male goes through three bouts of static handgrip exercises in supine, sitting and standing positions. A finapres and a plethysmograph are used to measure heart rate, forearm vascular resistance and arterial pressure.

The results showed that there are no significant differences between hypertensive and normotensive males in the heart rate and others in responses to static handgrip. It is also observed in relation to static handgrip and hypertension that the forearm vascular resistance is considerably higher in individuals with hypertension. This indicates the interaction between orthostatic stimuli and static handgrip exercise in hypertensive individuals.