prt.fiber: prt.fiber Data (2471 x 5)

In nlmeU: Datasets and utility functions enhancing functionality of nlme package.

Description

Data from a Progressive Resistance Randomized Trial.

Format

The prt.fiber data frame has 2471 rows and 5 columns. Each row in the data corresponds to one muscle fiber collected during muscle biopsy. See prt data frame for the description of the study design.

id

a factor with 63 levels 5, 10, 15, 20, 25, ..., 520

iso.fo

a numeric vector with values of isometric force ranging from 0.16 to 2.565

spec.fo

a numeric vector with values of specific force ranging from 80.5 to 290

occ.f

a factor with 2 levels Pre, Pos, i.e. pre- and post- intervention

fiber.f

a factor with 2 levels Type 1, Type 2, i.e. Type 1 and Type 2 muscle fiber.

Details

PRT trial was aimed for devising evidence-based methods for improving and measuring the mobility and muscle power of elderly men and women

Source

Claflin, D.R., Larkin, L.M., Cederna, P.S., Horowitz, J.F., Alexander, N.B., Cole, N.M., Galecki, A.T., Chen, S., Nyquist, L.V., Carlson, B.M., Faulkner, J.A., & Ashton-Miller, J.A. (2011) Effects of high- and low-velocity resistance training on the contractile properties of skeletal muscle fibers from young and older humans. Journal of Applied Physiology, 111, 1021-1030.

See Also

prt, prt.subjects

Examples

summary(prt.fiber)

nlmeU documentation built on May 2, 2019, 6:50 p.m.