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Scale a de Leva segment inertia model to a subject

Source: R/kinetics-rne.R
scaleSegmentModel.Rd

Scales the de Leva (1996) body-segment inertial parameters to a subject's body mass and segment lengths (or stature). A thin, explicitly-named wrapper around estimateSegmentInertia().

Usage

scaleSegmentModel(
  body_mass,
  segment_lengths = NULL,
  body_height = NULL,
  model = c("deLeva_male", "deLeva_female")
)

Arguments

body_mass

Subject body mass in kg.

segment_lengths

Optional named vector of foot, shank, thigh lengths (m). If omitted, body_height is used with typical ratios.

body_height

Subject stature in m (used when segment_lengths is omitted).

model

"deLeva_male" or "deLeva_female".

Value

A segment inertia data.frame (see estimateSegmentInertia()).

References

de Leva P (1996). "Adjustments to Zatsiorsky-Seluyanov's segment inertia parameters." J Biomech, 29(9), 1223-1230.

See also

scaleBodyModel(), estimateSegmentInertia(), inverseDynamicsRNE()

Examples

scaleSegmentModel(body_mass = 68, body_height = 1.70)
#>   segment length   mass mass_fraction com_proximal_fraction
#> 1    foot 0.2584 0.9860        0.0145                 0.500
#> 2   shank 0.4182 3.1620        0.0465                 0.433
#> 3   thigh 0.4165 9.6288        0.1416                 0.433
#>   radius_gyration_fraction    inertia
#> 1                    0.475 0.01485420
#> 2                    0.302 0.05043637
#> 3                    0.323 0.17426382