predict_loading {impactr}

Predict mechanical loading

Description

Predict either ground reaction force or loading rate, or both, based on accelerometer data.

Usage

predict_loading(data, outcome, vector, model)

Arguments

data

An impactr_data object, as obtained with read_acc().

outcome

A character string. Can be either "grf" (for ground reaction force), or "lr" (for loading rate) or "all" (for both mechanical loading variables).

vector

A character string indicating in which acceleration vector to find the peaks. Can be "resultant", "vertical" or "all".

model

A character string indicating which model to use to make the predictions. The values currently supported are "walking", "walking/running" and "jumping".

Value

An object of class impactr_peaks with the ground reaction force and/or loading rate peaks magnitude stored in the columns.

Examples

data <- read_acc(impactr_example("hip-raw.csv"))
data <- specify_parameters(data, acc_placement = "hip", subj_body_mass = 78)
data <- find_peaks(data, vector = "vertical")
predict_loading(
  data,
  outcome = "grf",
  vector = "vertical",
  model = "walking/running"
)