Run complete force-plate analysis

Convenience wrapper that filters GRF components and computes COP, loading rate, and impulse summaries.

Usage

analyzeForcePlate(
  forces,
  moments = NULL,
  sampling_rate,
  cutoff = 20,
  threshold = 20,
  order = 4,
  filter_method = c("butterworth", "moving_average"),
  origin = c(0, 0, 0)
)

Arguments

forces

Matrix/data.frame with force components (X, Y, Z).

moments

Optional matrix/data.frame with moment components (X, Y, Z).

sampling_rate

Sampling rate in Hz.

cutoff

Low-pass cutoff for force filtering.

threshold

Contact threshold for stance detection.

order

Butterworth filter order.

filter_method

Filtering method passed to filterGRF().

origin

Force-plate origin used in COP computation.

Value

A list with elements: filtered_forces, cop, loading_rate, impulse, and summary.

References

Winter DA (2009). "Biomechanics and Motor Control of Human Movement." 4th ed. John Wiley & Sons.

See also

filterGRF() for ground reaction force filtering, calculateCOP() for center of pressure computation, computeLoadingRate() for loading rate analysis, analyzeForcePlatePE() for PhysioExperiment-based analysis.

Examples

f <- cbind(Fx = rep(0, 1000), Fy = rep(0, 1000),
           Fz = c(rep(0, 200), abs(sin(seq(0, pi, length.out = 600))) * 800,
                  rep(0, 200)))
out <- analyzeForcePlate(f, sampling_rate = 1000)