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Cardiovascular response is a criterion in determining suitability and safety in exercise testing and training. Howbeit, there is a paucity of studies on cardiovascular response to back muscles´ endurance tests in health and disease. Considering that the back extensor muscles are one of the largest muscle groups in the body, and that the magnitude of cardiovascular response to contraction to muscular endurance is reportedly greater than muscular strength testing, it is therefore important to determine the cardiovascular entropy to static and dynamic endurance testing and training of back extensor muscles as it could add to the ability of clinicians to feel more confident in the safety of using these tests and exercise on their patients. This book presents the cardiovascular response to static and dynamic endurance tests of back extensors and also the influence of demographics and anthropometric parameters on the cardiovascular response to the tests in apparently healthy individuals.

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