HR versus Exercise Update

Discussion in 'Health and medical' started by Phil Holman, Nov 10, 2003.

  1. Phil Holman

    Phil Holman Guest

    The following is from my stationary cycle trainer workout today. After a
    10 minute warm-up I start the clock and crank up to 300 watts (power tap
    measurement accurate to within 1%). The heart rate response is still
    slow but at least I can complete the workout. My perceived level of
    exertion is constant throughout (fairly hard).

    HR Mile Time (min)
    128 1 2.5
    130 2 5.0
    131 3 7.5
    132 4 10
    138 5 12.5
    140 6 15
    141 7 17.5
    143 8 20
    147 9 22.5
    147 10 25

    6 months ago I would poop out at about the 4 mile level with a HR of
    128. The above workout is done at a level loading of 300 watts ( this
    would solicit a time trial speed of ~26mph). At the time, after a few
    visits to the Cardiologist and the usual testing, the chronotropic
    incompetence tendency was never satisfactorily diagnosed but my bicuspid
    aortic valve was. Blood ejection velocity 2m/s and 5mm delta p across
    the valve. Since then I feel a lot better and most of my pre-incident
    performance has returned. Comments welcomed (especially what is
    happening physiologically at the 4 to 5 mile mark). My previous max HR
    had been 160 for the last 10 years or so and I think this is slowly
    coming back.

    Phil Holman