UNIT 3 ➜ SAC 2 - Energy systems and Acute responses Flashcards
For each of the 3 Energy systems,
Identify the Fuel source
𝐀𝐓𝐏-𝐏𝐂
Phosphocreatine
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
Glycogen
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
FFAs (At rest)
Carbs, Fats, Proteins (Submax and Maximal)
For each of the 3 Energy systems,
Identify the Intensity
𝐀𝐓𝐏-𝐏𝐂
High intensity (> 95% of max HR)
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
High intensity (> 85% of max HR)
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
Submaximal intensity (< 80% of max HR), Resting
For each of the 3 Energy systems,
Identify the Dominant system duration
𝐀𝐓𝐏-𝐏𝐂
Short duration (1-5 secs)
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
Intermediate duration (5-60 secs)
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
Long duration (75+ secs)
For each of the 3 Energy systems,
Identify the Peak power
𝐀𝐓𝐏-𝐏𝐂
2-4 secs
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
5-15 secs
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
1-1.5 mins
For each of the 3 Energy systems,
Identify the Rates and Yields
𝐀𝐓𝐏-𝐏𝐂
RATE - Fastest rate + Explosive
YIELD - Extremely limited (0.7 ATP per PC mol.)
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
RATE - Fast
YIELD - Small amounts (2-3 ATP per glucose mol.)
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
RATE - Medium
YIELD - Greatest/Largest (38 ATP per glucose mol., 441 ATP per triglyceride mol.)
For each of the 3 Energy systems,
Identify the By-products
𝐀𝐓𝐏-𝐏𝐂
Inorganic phosphates (Pi), ADP and AMP
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
Lactic acid, H+ ions and ADP
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
CO2, H2O, Heat
For each of the 3 Energy systems,
Identify the Total duration
𝐀𝐓𝐏-𝐏𝐂
0-10 secs
𝐀𝐧𝐚𝐞𝐫𝐨𝐛𝐢𝐜 𝐆𝐥𝐲𝐜𝐨𝐥𝐲𝐬𝐢𝐬
10-75 secs
𝐀𝐞𝐫𝐨𝐛𝐢𝐜
75+ secs
What is Energy Interplay?
A situation where all 3 energy systems contribute to ATP production, with 1 system being the major ATP producer at one time
Contributions from the energy systems depend on…
HINT - 4 dot points
○ Intensity
○ Duration
○ Availability of oxygen
○ Availability of fuel stores
a) What is LIP?
b) What intensity does an athlete usually reach their LIP?
a) The highest exercise intensity where lactate removal and lactate production are balanced
b) 85% max HR, 55-70% VO2 max
What happens when we exercise above our LIP?
○ Increased contribution from the AG system
○ Accumulation of H+ ions and Lactate
○ Decreased time to exhaustion + fatigue
a) Define oxygen uptake/VO2
b) Define VO2 max
a) The volume of O2 able to be taken up by, transported to and used by the body for energy production
b) SAME definition - Just add ‘Maximum’ before volume
a) Define Oxygen deficit
b) Define Steady state
C) Define EPOC (Excess Post-exercise Oxygen Consump.)
a) When oxygen demand exceeds oxygen supply
○ ATP supplied Anaerobically
b) When oxygen supply meets oxygen demand
○ ATP supplied Aerobically
c) The period after exercise stops when HR and O2 consumption remain above resting levels
a) What happens during Fast EPOC?
b) What happens during Slow EPOC?
FAST
○ ATP resynthesis
○ PC resynthesis
○ Restore O2 to myoglobin
SLOW
○ Return core temp to pre-exercise levels
○ Oxidation of H+ ions (Lactate ⇨ H2O + O2)
○ Restore HR + ventilation to pre-exercise levels
etc.
List the 4 Respiratory acute responses
○ Increased respiratory rate
○ Increased ventilation
○ Increased tidal volume
○ Increased pulmonary diffusion