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Table 1 Descriptive data of participants

From: The potential use of spectral electromyographic fatigue as a screening and outcome monitoring tool of sarcopenic back muscle alterations

Average from 3 test days

Mean (SE)

Age

Gender

Age X Gender

Age and gender dependant differences

  

F; p-value

F; p-value

F; p-value

Mean (95% CI)

     

Age

Gender

Age (years)

<50

33.14 (1.66)

     

>50

67.11 (1.55)

     

BMI (kg/m 2 )

<50

24.11 (0.47)

     

>50

25.15 (0.45)

     

IPAQ

<50

337.15 (60.25)

     

>50

424.09 (59.07)

     

Position of lever arm* (degrees)

<50

47.2 (13.7)

     

>50

46.7 (10.0)

     

Lumbar/Thoracic (Nm):

      

Extension torque

<50

242.67 (11.65)

02.00; 0.16

74.81; < 0.01

0.04; 0.84

23.98 (-5.66; 54.71)

102.85 (80.67;125.56)

>50

218.68 (11.19)

Participants’ anticipatory feelings and emotions:

     

Positive emotions

<50

05.23 (0.29)

00.61; 0.44

02.57; 0.11

0.01; 0.91

0.37 (-0.43; 1.19)

0.68 (-0.11; 1.48)

>50

04.87 (0.29)

Negative emotions

<50

00.63 (0.12)

01.44; 0.23

01.00; 0.32

0.61; 0.44

0.21 (-0.12; 0.54)

0.18 (-0.14; 0.49)

>50

00.42 (0.12)

Motivation

<50

05.90 (0.31)

00.30; 0.58

01.99; 0.16

0.78; 0.38

0.28 (-0.47; 1.04)

0.62 (-0.13; 1.45)

 

>50

05.62 (0.27)

     
  1. *Lever arm position data at the beginning of the sustained trunk extension were acquired from an accelerometer (Trigno, DelSys, MA, Boston) attached to the lever arm in a standardized way. Note that the degrees provided represent absolute values and relate to a 30° trunk anteflexion in the dynamometer.
  2. Means and standard error are provided. This table further provides results of two-way ANOVAS (age, gender) of data from psychological testing, and the lever arm positions during the sustained contraction.