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1. What is the MET level for a 100-kg person walking on a treadmill at 3.2 mph and at a 6% grade?

2. A 68-kg woman is running on a treadmill at 9 mph and a 1% grade. What is her estimated energy expenditure in kilocalories during 40 minutes?

3. Your 50-kg client has a VO2max of 2.4 L/min. You want him to exercise at 75% of VO2 reserve. If the treadmill is set at a 12% grade, what should the walking speed be set at (in mph)?

4. You want your client to exercise at 45 mL•kg⁻¹•min⁻¹ by running on a treadmill. She is comfortable running at 7 mph. What grade should the treadmill be set at to achieve the correct intensity?

5. A 50-kg patient is arm cranking on a Monark arm ergometer (Rehab Trainer) at 50 rpm with a resistance of 0.5 kg. What is the VO2 in mL•kg⁻¹•min⁻¹?

6. Bill weighs 176 pounds. His exercise session consisted of a 5-minute warm-up at 2.5 METs, walking on the treadmill at 4.5 METs for 20 minutes, cycling for 15 minutes at 4 METs, and a 5-minute cool-down at 2 METs. Calculate the total kcal expenditure.

7. A 140-pound female has the following exercise program: treadmill for 10 minutes at 3.2 mph/0% grade; treadmill for 10 minutes at 3.4 mph/2% grade; treadmill for 10 minutes at 3 mph/5% grade. Calculate the total kcal used. If she exercises 3 times per week, how long will it take her to lose 15 pounds through exercise alone?

8. What is the MET level for a person with a VO2 of 55 mL•kg⁻¹•min⁻¹?

9. If a 60-kg woman exercises at a VO2 of 2400 mL•min⁻¹, at what MET level is she exercising?

10. Determine the correct MET level for each of the following activities performed by a 70-kg person:
a) Stepping at 18 steps•min⁻¹, 25 cm step
b) 750 kg•m•min⁻¹ on a Monark leg ergometer
c) Arm cranking at 350 kg•m•min⁻¹ on a Monark ergometer

11. Which person is exercising at a higher MET level – Fred (72 kg) running at 6 mph and on a 10% grade or Pete (55 kg) cycling on a Monark ergometer with a resistance of 2.5 kg and a pedal rate of 60 rpm?

12. If a patient must exercise at an 8-MET level, what treadmill grade is required if the treadmill speed is 3 mph?

13. What are the MET and VO2 (L•min⁻¹ and mL•kg⁻¹•min⁻¹) values of a 70-kg male treadmill walking at 3.0 mph, 12% grade?

14. What is the MET level for a man running at 7 mph with a 5% grade?

15. John's VO2 on the cycle ergometer is 1745 mL•min⁻¹. Determine his kcal utilization over 20 minutes of exercise.

Answer :

Final answer:

The MET level for a 100-kg person walking on a treadmill at 3.2 mph and at a 6% grade is 1.192. The estimated energy expenditure for a 68-kg woman running on a treadmill at 9 mph and a 1% grade for 40 minutes is 1.091 kilocalories. The walking speed for a 50-kg client with a VO2max of 2.4 L/min, exercising at 75% of VO2 reserve, on a treadmill set at a 12% grade should be set at 0.036 mph.

Explanation:

1. To calculate the MET level for a 100-kg person walking on a treadmill at 3.2 mph and at a 6% grade, we can use the formula: MET level = (speed in mph) x (grade) x (0.1) + 1. For this scenario, the MET level would be 3.2 x 0.06 x 0.1 + 1 = 1.192.

2. To estimate the energy expenditure of a 68-kg woman running on a treadmill at 9 mph and a 1% grade for 40 minutes, we can use the formula: Energy Expenditure (kcal) = (MET level) x (weight in kg) x (duration in minutes). For this scenario, the estimated energy expenditure would be: MET level = 9 x 0.01 x 0.1 + 1 = 1.091.

3. To determine the walking speed for a 50-kg client with a VO2max of 2.4 L/min exercising at 75% of VO2 reserve and a treadmill set at a 12% grade, we can use the formula: Walking Speed (mph) = VO2max x (%VO2 reserve) / (MET level x 3.5). For this scenario, the walking speed should be set at: Walking Speed = 2.4 x 0.75 / (12 x 3.5) = 0.036 mph.

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Rewritten by : Barada

The MET level for a 100-kg person walking on a treadmill at 3.2 mph and at a 6% grade is the VO2 in ml• kg*'min for the 50-kg patient arm cranking on a Monark arm ergometer (Rehab Trainer) at 50 rpm with a resistance of 0.5 kg is 8.4.6. Bill's total kcal expenditure can be calculated by adding the product of the MET value and weight of each activity in kg and the duration of each activity in hours, which results in 220 kcal.7. The total kcal used by the 140-pound female can be calculated by adding the product of the MET value, weight, and duration of each activity in hours, which results in 95 kcal. To lose 15 pounds through exercise alone, she will need to exercise for approximately 9.5 months.8.

The MET level for a person with a Vo, of 55 mL kg'-min is 1.6.9. The woman exercising at a VO2 of 2400 mL•min' is exercising at a MET level of 10.10. The correct MET level for the activities performed by the 70-kg person are: a) 6.0 METs, b) 5.0 METs, and c) 3.5 METs.11. Fred is exercising at a higher MET level than Pete. Fred's MET level is 14.6, whereas Pete's MET level is 3.8.12. If a patient must exercise at an 8-MET level and the treadmill speed is 3 mph, the treadmill grade required is 8%.13. The MET and VO2 values for the 70-kg male treadmill walking at 3.0 mph, 12% grade are 10.3 and 2.3 L•min' and 32.6 mL•kgmin', respectively.14. The MET level for a man running at 7 mph with a 5% grade is 13.5.15. John's kcal utilization over 20 minutes of exercise is 7.1 kcal.

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