8.2: Part B- Aerobic Capacity Estimation
- Page ID
- 100751
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)Part B- Aerobic Capacity Estimation
One of the most sought-after measurements for endurance athletes is their ability to use oxygen to produce energy (ATP). This is known as maximal oxygen consumption (VO2max) and it can be directly measured with sophisticated equipment or predicted, as we are doing here. In some sports like road cycling or running, it is very predictive of the champions or not. In other sports like off-road (mountain) cycling or swimming, it is not as predictive because the skill level becomes a strong determinant.
There are many tests that have been developed to gauge the aerobic condition of someone. Some give a specific number in terms of the VO2max, and others give just a ranking word- like very good or fair.
VO2 Max Chart for Women by Age (ml/kg/min)
|
Classification |
18-25 |
26-35 |
36-45 |
46-55 |
56-65 |
66+ |
|---|---|---|---|---|---|---|
|
Excellent |
>56 |
>52 |
>45 |
>40 |
>37 |
>32 |
|
Good |
47-56 |
45-52 |
38-45 |
34-40 |
32-37 |
28-32 |
|
Above average |
42-46 |
39-44 |
34-37 |
31-33 |
28-31 |
25-27 |
|
Average |
38-41 |
35-38 |
31-33 |
28-30 |
25-27 |
22-24 |
|
Below average |
33-37 |
31-34 |
27-30 |
25-27 |
22-24 |
19-21 |
|
Poor |
28-32 |
26-30 |
22-26 |
20-24 |
18-21 |
17-18 |
|
Very poor |
<28 |
<26 |
<22 |
<20 |
<18 |
<17 |
VO2 Max Chart for Men by Age(ml/kg/min)
|
Classification |
18-25 |
26-35 |
36-45 |
46-55 |
56-65 |
66+ |
|---|---|---|---|---|---|---|
|
Excellent |
>60 |
>56 |
>51 |
>45 |
>41 |
>37 |
|
Good |
52-60 |
49-56 |
43-51 |
39-45 |
36-41 |
33-37 |
|
Above average |
47-51 |
43-48 |
39-42 |
36-38 |
32-35 |
29-32 |
|
Average |
42-46 |
40-42 |
35-38 |
32-35 |
30-31 |
26-28 |
|
Below average |
37-41 |
35-39 |
31-34 |
29-31 |
26-29 |
22-25 |
|
Poor |
30-36 |
30-34 |
26-30 |
25-28 |
22-25 |
20-21 |
|
Very poor |
<30 |
<30 |
<26 |
<25 |
<22 |
<20 |
Because the size of the person matters in how much oxygen they can take in, transport, and utilize, the measurement is based on the kilogram weight of the individual. So, the milliliters of oxygen per kilogram of body weight per minute or ml/kg/min is the unit of VO2.
All the tests are based on giving the individual a certain amount of work then measuring their heart rate or in some cases blood gases during ventilation (which requires a fancy and expensive machine). Heart rate alone is fine for most estimations. The first part of this section will use the Rockport Walk Test to estimate a maximum. It will also use a formula to calculate the actual VO2 of the walk itself. Thus, someone can find out what percentage of maximum they were on the walk. The limitations of the Rockport Walk test will be explained. It is a great test because the slower someone walks the lower their heart rate will be. Thus, it is calculating the relationship between these two. Unfortunately, it is not accurate for runners or people of better aerobic condition.
It is important the subject stays at the same pace throughout the mile. He should walk at a challenging pace but not too fast, and definitely should not go faster at the end. Get the heart rate within 5 seconds of finishing as instructed above. Carotid pulse is the easiest to get. Practice doing it first.