{
  "version": "1.0.0",
  "last_updated": "2026-10-18",
  "symbols": {
    "g": {
      "tex": "g",
      "description": "Gravitational acceleration (9.81 m/s²)"
    },
    "m": {
      "tex": "m",
      "description": "Body mass"
    },
    "bw": {
      "tex": "BW",
      "description": "Body weight (m · g)"
    },
    "f": {
      "tex": "F",
      "description": "Vertical ground reaction force"
    },
    "v": {
      "tex": "v",
      "description": "Vertical velocity of the center of mass"
    },
    "p": {
      "tex": "P",
      "description": "Power (F · v)"
    },
    "j": {
      "tex": "J",
      "description": "Impulse"
    },
    "h": {
      "tex": "h",
      "description": "Jump height"
    },
    "t": {
      "tex": "t",
      "description": "Time of the event named in the subscript"
    },
    "dt": {
      "tex": "\\Delta t",
      "description": "Duration of the phase named in the subscript"
    },
    "mean": {
      "tex": "\\bar{x}",
      "description": "Mean value"
    },
    "t_flight": {
      "tex": "t_{\\text{flight}}",
      "description": "Flight time"
    },
    "t_contact": {
      "tex": "t_{\\text{contact}}",
      "description": "Contact time"
    },
    "v_takeoff": {
      "tex": "v_{\\text{takeoff}}",
      "description": "Velocity at takeoff"
    },
    "v_touchdown": {
      "tex": "v_{\\text{touchdown}}",
      "description": "Velocity at touchdown"
    },
    "v_min": {
      "tex": "v_{\\min}",
      "description": "Lowest (most downward) velocity, where deceleration starts"
    },
    "h_drop": {
      "tex": "h_{\\text{drop}}",
      "description": "Drop height"
    },
    "t_onset": {
      "tex": "t_{\\text{onset}}",
      "description": "Onset of the contraction"
    },
    "p1p2": {
      "tex": "P1,\\ P2",
      "description": "First and second half of the propulsive phase (split by time)"
    },
    "w_system": {
      "tex": "W_{\\text{system}}",
      "description": "System weight: body weight plus external load"
    },
    "m_body": {
      "tex": "m_{\\text{body}}",
      "description": "Body mass"
    },
    "m_load": {
      "tex": "m_{\\text{load}}",
      "description": "External load"
    },
    "recording_duration": {
      "tex": "T",
      "description": "Duration of the recording"
    },
    "cop_step": {
      "tex": "\\Delta x_i,\\ \\Delta y_i",
      "description": "Change in center of pressure position between samples"
    },
    "cop_eigenvalues": {
      "tex": "\\lambda_1,\\ \\lambda_2",
      "description": "Eigenvalues of the center of pressure covariance"
    },
    "chi_square": {
      "tex": "5.991",
      "description": "χ² value for a 95 % confidence ellipse"
    },
    "com_step": {
      "tex": "\\Delta s_i",
      "description": "Change in center of mass position between samples"
    },
    "sample_rate": {
      "tex": "f_s",
      "description": "Sampling rate"
    }
  }
}