Some comment changes and added changelog

CHANGELOG.md

@@ -15,6 +15,8 @@ project.
 - All orientation and trajectory methods now have a new parameter `rotated_data_` that provides the input data rotated
  to the world frame based on the calculated orientation.
  (https://github.com/mad-lab-fau/gaitmap/pull/64)
+- The Spatial Parameter Calculation now also calculates the "Range of Motion" (i.e. the angle change of the sensor in
+ the sagittal plane) (https://github.com/mad-lab-fau/gaitmap/pull/54)
 
 ### Fixed
 

gaitmap/parameters/_spatial_parameters.py

@@ -97,8 +97,9 @@ class SpatialParameterCalculation(BaseSpatialParameterCalculation):
  The overall arc length is directly calculated from the position of the sensor by adding the absolute changes in
  position at every time point.
  Max. orientation change
- The maximum change of angle in the sagittal plane. It is similar to the range of motion, however, the measured
- parameter is value effected by other joints such as knee and hip as well.
+ The maximum change of sensor angle in the sagittal plane.
+ This is similar to the range of motion of the ankle, however, the measured parameter is effected by other joints
+ such as knee and hip as well.
  Turning Angle
  The turning angle is calculated as the difference in orientation of the forward direction between the first
  and the last sample of each stride.