. 2020 Jan 29;10:1422. doi: 10.1038/s41598-020-57580-z

Table 2.

Description of the evaluation indices.

Category	Index	Description
(I) Movement magnitude	${}^{(A_{k})} I_{1}$	Movements frequency
	${}^{(A_{k})} I_{2}$	Movements strength
	${}^{(A_{k})} I_{3}$	Movements count
(II) Movement balance	$^{(k_{1}, k_{2})} I_{4}$	Ratio of index ${}^{(A_{k})} I_{1}$ in upper-limb and lower-limb
	$^{(k_{1}, k_{2})} I_{5}$	Ratio of index ${}^{(A_{k})} I_{2}$ in upper-limb and lower-limb
	$^{(k_{1}, k_{2})} I_{6}$	Symmetry in upper-limb and lower-limb
(III) Movement rhythm	${}^{(A_{k})} I_{7}$	Rhythm of $^{(A_{k})} M_{l}$
	${}^{(A_{k})} I_{8}$	Standard deviation of index ${}^{(A_{k})} I_{7}$
	$^{(A_{9})} I_{9_{x}}$ , $^{(A_{9})} I_{9_{y}}$	Rhythm of G^v
	$^{(A_{9})} I_{10_{x}}$ , $^{(A_{9})} I_{10_{y}}$	Standard deviation of index ${}^{(A_{9})} I_{9_{x}}$ , ${}^{(A_{9})} I_{9_{y}}$
	$^{(A_{9})} I_{11_{x}}$ , $^{(A_{9})} I_{11_{y}}$	Rhythm of G^d
	$^{(A_{9})} I_{12_{x}}$ , $^{(A_{9})} I_{12_{y}}$	Standard deviation of index ${}^{(A_{9})} I_{11_{x}}$ , ${}^{(A_{9})} I_{11_{y}}$
(IV) Movement of the body centre	$^{(A_{9})} I_{13_{x}}$ , $^{(A_{9})} I_{13_{y}}$	Total magnitude of G^v
(IV) Movement of the body centre	$^{(A_{9})} I_{14_{x}}$ , $^{(A_{9})} I_{14_{y}}$	Total magnitude of G^d