In this example, a horse traveling at 2 m/sec will be more likely to Trot, rather than Walk 28 A Walk Trot • Gallop 24 100 20 Gallop 16 50 12 Trot Walk 2 6 2 3 4 5 Running speed (m s-1) Running speed (m s-) True False Rate of oxygen consumption (ml O2 s-1) Millilitres of oxygen consumed to move 1 m
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- In this example, there is an optimum speed for Galloping 28 r A Walk o Trot • Gallop 24 100 20 Gallop 16F 50 12 Trot Walk 1 2 3 4 2 3 5 Running speed (m s-1) Running speed (m s-1) True False Rate of oxygen consumption (ml O2 s-1) Millilitres of oxygen consumed to move 1 mIn this example, the Metabolic Rate during galloping is always higher than the metabolic rate during trotting 28 A Walk o Trot • Gallop 24 100 20 Gallop 16 50 12 Trot Walk 2 3 4. 5 6 1 2 3 Running speed (m s-1) Running speed (m s-1) True False Rate of oxygen consumption (ml O2s) Millilitres of oxygen consumed tWhich of the following are TRUE, regarding patterns of Oxygen Consumption in horses traveling at different speeds, based of the following data: A Walk o Trot • Gallop 100 - Gallop 16 12 Trot Walk 2 3 4 6 2 3 4 Running speed (ms-) Running speed (ms-) When horses trot, metabolic Cost of Transport is independent of speed. OAt the optimum speeds within each gate, metabolic Cost of Transport is independent of speed. These data show that Horses have specific adaptations for walking, trotting, and galloping. Metabolic Rate is constant, regardless of speed To travel a distance of 10 miles, it is most energetically efficient for a horse to walk. Metabolic Cost of Transport increases with increases in running speed. Rate of oxygen consumption (ml 02s) Millilitres of oxygen consumed to move
- In this example, there is an optimum speed for Trotting 28 A Walk o Trot Gallop 24 100 20 Gallop 16 50 12- Trot Walk | 1 2 3 4. 6 1 2 3 4 5 Running speed (m s-1) Running speed (m s-1) True False Rate of oxygen consumption (ml O2 s-1) Millilitres of oxygen consumed to move 1 mThese figures show that: S Vor (1-min¹) 30 A 2.5 20 1.5 1.0 0.5 (50) 10 Concentric Eccentric Exercise rate (100) 20 (150) Integrated EMG (counts min) B 600 400 200 (50) 30 10 Mean torque on pedals (Nm) (100) Concentric 20 Exercise rate (200) (150) Eccentric 30 O concentric contractions require more oxygen and more EMG than eccentric contractions O concentric contractions are easier to perform than eccentric contractions O eccentric contractions place a greater demand on the cardiovascular and nervous systems compared to concentric contractions O eccentric contractions use less oxygen but more EMG than concentric contractionsThe following graph is simulated (but realistic) data from a VO₂max trial of a human athlete running (no gait changes). Estimate and label the following variables: VO2 (ml/kg/min) 1. VO₂max 2. Incremental cost of locomotion 3. Maximum aerobic speed 4. RMR + postural costs 70 60 50 40 30 20 10 0 2 3 4 5 6 7 8 9 10 11 12 13 MPH
- p02 Y O2 (mmHg) 0.5 0.161 1 0.277 0.434 3 0.535 4. 0.605 0.697 0.754 12 0.821 20 0.885 Using the data provided in the table, the estimated p50 for myoglobin is mmHg and the fraction saturation of myoglobin at 30mmHg is 6Compute the oxygen cost of cycling (ml · kg-1 · min-1) at work rates of 50, 75, 100, 125 W for a 60-kg person.Define maximal oxygen uptake. Why might relative V ̇O2 max be the single most important factor in predicting distance running success in a heterogeneous group of runners?
- Sam walks 2km in 30 minutes. How much time will he take to cover 400meters ? Report your answer in m/s.Under certain circumstances, the respiratory quotient (RQ value) for an athlete exercising intensely can rise above 1. How is this possible?Calculate the estimated O2 cost of horizontal treadmill running (ml . kg -1 . min -1 ) for a 70-kg subject at 150,200, and 235 m . min -1 .
