The flow down on blood pressure, if you think you're at risk then get medical advice, the wrong type of exercise can have a detrimental impact on your training programme. i.e. overhead pressing and heavy lifts etc.
Systolic:
The systolic blood pressure (SBP) is the pressure exerted on the artery walls, "when the cardiac muscle is contracting (ventricular systole) and pumping blood. This is the higher of the two numbers, and is usually noted first. The increased volume of blood flowing through the arteries with each beat, therefore increasing the pressure within the arteries causes it. There is a linear increase in SBP with increasing levels of exertion approximately 8-12mmHg per MET (metabolic equivalent). It is also increased in the short and long term by a number of factors.
Diastolic:
The diastolic blood pressure (DBP) is the pressure exerted on the artery walls, when the heart is in a relaxed state. The heart goes through this period of relaxation, or diastole, to allow the chambers of the heart to fill with blood prior to contraction. "The DBP is the running or 'remaining' pressure between beats" and is always smaller than the SBP. During exertion DBP may decrease slightly, due to vasodilation, or will remain unchanged except in hypertensives where it may rise as a result of an impaired vasodilatory response The DBP is more stable and less influenced by acute factors than SBP, although over a period of time, it will rise in accordance with chronic variables? Therefore changes in this measure are usually clinically significant in diagnosing contraindications to exercise, such as hypertension.
Optimal blood pressure:
The ACSM define optimal blood pressure, with respect to cardiovascular risk, as being below ·120 mmHg for systolic and 80 mmHg for diastolic pressure. It should be noted that unusually low readings could be of some clinical significance.
Factors that increase blood pressure
Systolic factors Acute (immediate):
* Stress, anxiety or arousal
* Physical activity / exertion
* Food
* Caffeine
* Smoking
* Illicit drugs**
Chronic (long term):
* Psychological stress/anxiety
* Sedentary lifestyle/inactivity
* Obesity
* High dietary salt (Na) intake
* Low dietary potassium (K) intake
* Excessive alcohol intake
* Prescription drugs*
* Illicit drugs**
Diastolic factors Acute (immediate):
* Heavy weight training
* Isometric exercise
Chronic (long term):
* Psychological stress/anxiety
* Sedentary lifestyle/inactivity
* Obesity
* High dietary salt (Na) intake
* Low dietary potassium (K) intake
* Excessive alcohol intake
* Prescription drugs*
* Illicit drugs**
Classification of Blood Pressure (mmHg) for Adults (18+)*
BP Classification
SBP DBP
Clinical Hypotension
<100 And <60
Normal
<120 And <80
Pre-hypertension
120-139 Or 80-89
Hypertension Stage 1 (Special Attention)
140-159 Or 90-99
Stage 2 (Medical Referral)
>160 Or >100
Andreas Michael
Visit Metro health and fitness personal training London
Blog site: http://www.fitnorama.com
Article Source: http://EzineArticles.com/?expert=Andreas_Michael
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment