
AP axis

ML axis

RD axis


Measures

OE

CE

OE

CE

OE

CE

mean velocity

(b)
 
(a)
   
total displacement

(H)

(I)

(G)
 
(e)
 
range

(d)
 
(c)
   
mean frequency

(g)

(i)

(f)

(h)
  
peak frequency

(k)
 
(j)

(l)
  
F80
  
(m)

(n)
  
RMS
  
(o)

(p)
  
Ellipse  major axis
    
(q)
 
Ellipse  angle
    
(r)

(s)

SDA  Dl

(t)

(u)
    
SDA  Hs
  
(v)
   
SDA  Hl

(x)
     
SDA  critical time
 
(y)
 
(w)
  
SDA  critical magnitude
 
(A)

(z)
   
DFA  α
   
(B)
  
ApEn
 
(E)

(C)

(D)
  
H
_{R/S}
 
(F)
    
 All features that were considered relevant on the estimate of the LDAvalue, according to the LDA method, are presented, and each letter of this table associate each relevant feature with the equations (24), (25) and (26) for estimating the LDAvalue.