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     MODULE-2                                         Physical and Physiological Aspects of Physical Education
           Dimension of Physical
           Education and Yog
                                   5.4 EFFECTS OF EXERCISE ON CIRCULATORY
                                        SYSTEM
                                 Our body requires oxygen during long term activities; this need is fulfilled by
                                 the circulatory system. This system consists of blood, heart and vessels. This
                                 system not only carries oxygen but also supplies nutrition to cells and tissues,
                       Note      removes waste product, and carries hormones etc. Circulatory system is affected
                                 in following ways (Fig. 5.12) during exercise.
                                                                 Blood Flow
                                              Heart Rate                               Blood
                                      Stroke
                                      Volume                                                     Size of
                                                                   Effect of                     Heart
                                                                 Exercise on
                                                                 Circulatory
                                           Blood
                                         pressure                                            Resting
                                                                                           Heart Rate
                                                         Cardiac
                                                         Output             Lactic acid
                                                 Fig.5.12: Effects of Exercise on Circulatory System
                                                                                     Physical Education and Yog
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