Announcement

Collapse
No announcement yet.

Mechanical Power -> Metabolic Power

Collapse
This topic is closed.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Mechanical Power -> Metabolic Power

    List Members,
    I'm trying to use, accurately, a piece of info I read in John Garhammer's
    article in the Journal of Strength and Conditioning Research, 1993, 7(2),
    76-89, titled, "A Review of Power Output Studies of Olympic and
    Powerlifting: Methodology, Performance, Prediction, and Evaluation Tests."

    It states, "during short-term anaerobic events the metabolic power
    estimates are usually 4 or more times the mechanical power output." Does
    anyone have an exact number (4.3, 4.7, etc.) and would the unit of
    metabolic power be? I'm trying to show the difference in energy
    expenditure between "core" type exercises and basic bodybuilding exercises
    as another way to use more energy during a workout other than circuit
    training. Is the example below appropriate and accurate? Thanks in advance,
    Robert Heppe, MA, CSCS
    Island Performance Center
    ----------------------------------------------------------------------------
    ----------------------------------------------------------------------------
    ----
    For example (in a very simple way) the mechanical power output of a bench
    press vs a clean and press. (I don't have any data on the acceleration of
    a bench press, so I've just input lb. for the force value).

    BENCH PRESS:
    135lb. * 2ft. / 1.8 s (average time of a rep in a set of 10 that takes 18
    sec.) = 150w

    convert to metabolic power:

    150w * 4 = 600 (units?)

    vs.

    CLEAN & PRESS (non explosive)

    C&P = 40lb. * 6ft. / 1.8 s = 133 (2 20lb. dumbells)
    C&P = 160lb. * 2.5 ft. / 1.8 s = 222 (body weight)

    Total = 133 + 222 = 355w

    convert to metabolic power:

    355w * 4 = 1420 (units ?)
Working...
X