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

In nlmeU: Functions and Data Supporting 'Linear Mixed-Effects Models: A Step-by-Step Approach'

prt.fiber Data (2471 x 5)

Description

Data from a Progressive Resistance Randomized Trial.

Usage

prt.fiber

Format

A data frame with 2471 rows and 5 columns:

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

data(prt.fiber, package = "nlmeU")
summary(prt.fiber)

nlmeU documentation built on Aug. 25, 2025, 5:12 p.m.