Question

Your client, Peyton, is a 55-year old man who is interested in becoming more active. His current resting heart rate is 68 bpm. You perform a multi-stage submaximal treadmill test to assess his fitness, with the following results:

Stage 1:   Speed: 2.4 mph   Grade: 5%   Heart Rate: 120 bpm

Stage 2:   Speed: 3.0 mph   Grade: 5%   Heart Rate: 133 bpm

   Based on these test results, what is Peyton’s relative VO2max in each unit:

A.   _____________ml/kg/min   ____________METS

Based on these results and %Vo2Reserve guidelines, what is the recommended range for relative oxygen consumption (ml/kg/min) values for Peyton to exercise at in order to exercise at a Moderate Intensity?

*Note, do not just provide % range, calculate actual ml/kg/min values

B.       __________ -_________ ml/kg/min

Based on these results and %HRmax guidelines, what is the recommended heart rate range for Peyton to exercise at in order to exercise at a Moderate Intensity?

*Note, do not just provide % range, calculate actual HR/bpm values

C.        _____ -________ bpm

What speed would Peyton have to walk at, given a 2% incline, to match the range recommended for Vo2 (ml/kg/min)? (Part B)

D.        _______ - _______ mph

Your client, Abby, is a 40-year old woman who is interested in becoming more active. Her current resting heart rate is 62 bpm. You perform a single-stage submaximal treadmill test to assess her fitness, with the following results:

Speed: 3.4 mph   Grade: 2.5%   Heart Rate: 130 bpm

   Based on these test results, what is Abby’s relative VO2max in each unit:

A.   _____________ml/kg/min   ____________METS

Based on these results and %Vo2Reserve guidelines, what is the recommended range for relative oxygen consumption (ml/kg/min) values for Abby to exercise at in order to exercise at a Vigorous Intensity?

*Note, do not just provide % range, calculate actual ml/kg/min values

B.        __________ -_________ ml/kg/min

Based on these results and %HRmax guidelines, what is the recommended heart rate range for Abby to exercise at in order to exercise at a Vigorous Intensity?

*Note, do not just provide % range, calculate actual HR/bpm values

C.        _____ -________ bpm

   What GRADE would Abby need to walk at if she wanted to walk at 3mph to match the range recommended for Vo2 (ml/kg/min)? (Part B)

D.            ______-______%

Equations for reference

Equation 1: VO₂= (Speed x 0.1) + (Speed x Grade x 1.8) + 3.5

*Note: Convert speed from MPH to m/min by multiplying x 26.8

Equation 2: VO₂ = (Speed x 0.2) + (Speed x Grade x 0.9) + 3.5

*Note: Convert speed from MPH to m/min by multiplying x 26.8

Equation 3: Power [kgm/min] = Force [kg] x Flywheel Distance x RPM

Equation 4: VO₂ = 1.8 [(Work [kgm/min])/ (Mass [kg])] + 3.5 + 3.5

Equation 5: b = (SM2 – SM1) / (HR2 – HR1)

VO₂max = SM2 + b(HRmax − HR2)

Equation 6: Men: SM x [(HRmax − 61) / (HRsm – 61)]

Women: SM x [(HRmax − 72) / (HRsm – 72)]

Walking

Speed = (VO₂ (in ml/kg/min) – 3.5)                       

26.8 * (0.1 + 1.8*Grade)   

Grade = VO₂ – 3.5 – [2.68 * (speed)]              

   26.8 * 1.8 * speed    

Running

Speed = VO₂ –3.5                       26.8 * (0.2 + [0.9 * (grade)])  

  

Grade = VO₂ – 3.5 – (5.36 * Speed)                

      26.8 * 0.9 * speed  

Answer 1

A,. HRmax =220_age

Age is 55

220_55 =165beats per minute

HRmax =165bpm and Harmon 68

Vo2max = 15X ( HRmax/HR rest)

=15 X (165 /68)

= 15 X 2.42

Relative vo2 max =36.3ml/kg/min

B,. Abby HRmax =220-age

Age is 40

220-40

=180bpm

HRmax = 180bpm and HRmin 62

Vo2max =15 X(HRmax /HRrest)

15 X (180/62)

=15 X 2.90

Relative vo2max =43.5ml/kg/min