Physiology of bodily exercise

accumulation active animal arms asphyxia automatic become blood bodily exercises body brain breath breathlessness carbonic acid cause cerebral chest combustion condition consecutive fatigue deformity difficult exercises diminished disturbances dyspnoea effects eliminated energetic excessive exer exercises of endurance exercises of speed exercises of strength exhaustion expenditure of force fact fencer fencing functions give grey matter gymnastics heat horse humerus increase influence intensity legs less limbs lungs mechanical mental ments motor muscles muscular action muscular contraction muscular effort muscular exercise muscular fibres necessary nerve nerve-centres nervous energy nitrogenous nutrition observed organs overwork oxygen performed persons phenomena physiological poisonous power of resistance practice produced products of dissimilation quantity reflex reflex actions repose reserve materials respiration respiratory movements respiratory need result ribs scoliosis sensation shoulders spinal cord spine stiffness stimulation substances thorax tion tissues trapeze undergo urates uric acid urine vertebral column violent exercise walk waste-products