ࡱ> WYV bjbj 4Zrr  r[]]]]]]$NF[[Q1 G0;| : Energy systems Advantages and disadvantages Alactic system ATP/PC system Phosphagen system AdvantagesDisadvantagesIt provides ATP re-synthesis very quickly because the PC is stored in the muscle cell and it is a simple reaction There is only a small amount of PC stored in the muscle cells As no oxygen is needed there is no delay for oxygen to be supplied from the lungsOnly one molecule of ATP is re-synthesised from one molecule of PC It can provide energy for very high intensity exercise such as high jump, kicking a ball or hitting a powerful tennis serveIt will only provide energy for a maximum of ten seconds PC will re-synthesise quite quickly and so recovery times for this system are short.  There are no harmful by-products   The Lactic Acid System Advantages Disadvantages Produces 2ATP = more than ATP-PC systemNot as quick as ATP-PC systemThere is a relatively large amount of glycogen stored in the body and so this system can provide more ATP than the PC systemThe by-product lactic acid lowers pH in the muscle cell making it more acidic. This prevents enzymes from functioning properly and so causes muscle fatigue There are still relatively few chemical reactions taking place during glycolysis and so ATP can be provided quickly for high-intensity activities that last from 15-180 seconds Only lasts for around 40 seconds at highest intensity up to 3 mins at lower intensityAs no oxygen is needed there is no delay for oxygen to be supplied from the lungsNet effect is pain and fatigue The Aerobic system AdvantagesDisadvantagesA large amount of ATP can be re-synthesised. 36-38 moles of ATP from one mole of glycogen even more from fatsSlow starting system. There is a delay whilst sufficient oxygen is delivered from the lungs to the working muscles so this system cannot provide large amounts of ATP immediately Very efficient system with good O2 supply More complex series of reactions = slower Energy can be supplied for long periodsThe system cannot produce ATP while working at higher intensities, again due to the difficulties in delivering enough oxygen to the working muscles There are no harmful by-products = no fatigueRequires more O2 supply (15%+) for fat metabolism  Energy systems Advantages and disadvantages Alactic system ATP/PC system Phosphagen system AdvantagesDisadvantages      The Lactic Acid System Advantages Disadvantages     The Aerobic system AdvantagesDisadvantages     -.d' / 0 1 2 ~       : b c Q R S v ɹɹɹɹɹuujhP\hqCJaJhP\hSCJaJhSCJaJhP\h$6CJaJh$6h$6CJaJh$6CJaJhP\h.r$CJaJh.r$CJaJh4CJaJhwCJaJhP\h4CJaJh$6h4CJaJhhe##CJaJhh4CJaJhhCJaJ'./0cdo}~0 1 2 |{kd$$Ifl09  t0644 laytP\$If 2 3 ~~~$If{kdu$$Ifl09  t0644 laytP\ F  ~~~~$If{kd$$Ifl09  t0644 laytP\ ~~~~$If{kd_$$Ifl09  t0644 laytP\  ~~~$If{kd$$Ifl09  t0644 laytP\      + 9 ||$If{kdI$$Ifl09  t0644 laytP\9 : c ~~$If{kd$$Ifl09  t0644 laytP\ ~~~$If{kd3$$Ifl09  t0644 laytP\ R S ~~~$If{kd$$Ifl09  t0644 laytP\v 12opqr Sļ⼩ک⼩ک⡙{phh 5CJaJhP\h` CJaJh` CJaJhP\hCCJaJh$6hCCJaJhCJaJhCCJaJhP\h.r$CJaJh4CJaJh$6CJaJh$6h$6CJaJhP\hSCJaJhSCJaJhP\h$6CJaJhP\hqCJaJhV;CJaJ& ~~$If{kd$$Ifl09  t0644 laytP\2=K||$If{kd$$Ifl09  t0644 laytP\KLpq~~~$If{kd$$Ifl09  t0644 laytP\qr~~~$If{kd|$$Ifl09  t0644 laytP\~~~$If{kd$$Ifl09  t0644 laytP\~~~$If{kdf$$Ifl09  t0644 laytP\RS^l}}}}}tt $IfgdCgdC{kd$$Ifl09  t0644 laytP\ lmnopq{{{{ $IfgdC{kdP$$Ifl09  t0644 laytP\qrstuv{{{{ $IfgdC{kd$$Ifl09  t0644 laytP\vwxyz{{{{{ $IfgdC{kd:$$Ifl09  t0644 laytP\{|}~{{{{ $IfgdC{kd$$Ifl09  t0644 laytP\{{{{ $IfgdC{kd$ $$Ifl09  t0644 laytP\vv $IfgdCgdC{kd $$Ifl09  t0644 laytP\{{{{ $IfgdC{kd $$Ifl09  t0644 laytP\{{{{ $IfgdC{kd $$Ifl09  t0644 laytP\{{{{ $IfgdC{kd $$Ifl09  t0644 laytP\{{{{ $IfgdC{kdm $$Ifl09  t0644 laytP\vv $IfgdCgdC{kd $$Ifl09  t0644 laytP\{{{{ $IfgdC{kdW $$Ifl09  t0644 laytP\ {{{{ $IfgdC{kd $$Ifl09  t0644 laytP\     {{{{ $IfgdC{kdA $$Ifl09  t0644 laytP\{{{{ $IfgdC{kd $$Ifl09  t0644 laytP\}}gdC{kd+$$Ifl09  t0644 laytP\h$6hCCJaJhCCJaJhP\h 5CJaJ21h:p.r$. 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