Question

Kai is 20 and weighs 125 pounds and is 5 feet 4 inches tall. She has completed a 1-mile jogging test in the field (George, et al., 1993a). She completed the 1mile in 10 minutes and 15 seconds with a heart rate of 140 beats per minute. Determine Kai's VO2max.

-49.54ml⋅kg⋅min
-36.85ml⋅kg⋅min
-29.94ml⋅kg⋅min
-40.56ml⋅kg⋅min
​

Answer 1

Kai's estimated VO₂max is approximately 36.85 ml⋅kg⁻¹⋅min⁻¹.

Step-by-step explanation:

To estimate Kai's VO₂max, we can use the George et al. (1993a) 1-mile jogging test formula:

VO₂max (ml⋅kg⁻¹⋅min⁻¹) = 132.853 - 0.1692 × weight (kg) - 0.3877 × age (years) + 6.315 × gender (female: 0, male: 1) - 3.2649 × time (minutes) - 0.1565 × heart rate (bpm).

Let's substitute Kai's information into the formula:

VO₂max = 132.853 - 0.1692 × (56.7) - 0.3877 × 20 + 6.315 × 0 - 3.2649 × (10.25) - 0.1565 × 140.

After performing the calculations:

VO₂max ≈ 36.85 ml⋅kg⁻¹⋅min⁻¹.

Therefore, Kai's estimated VO₂max is approximately 36.85 ml⋅kg⁻¹⋅min⁻¹, making the corresponding option the correct choice. This estimation is based on various factors such as weight, age, gender, exercise time, and heart rate, which collectively provide an approximation of Kai's maximal oxygen consumption during the 1-mile jogging test.