| |
Erector Spinae
|
|---|
|
Absolute sEMG
|
Normalised sEMG
|
|---|
|
Lifting condition
|
SEM (mV)
|
SEM % (%)
|
MDC (mV)
|
MDC % (%)
|
SEM (mV)
|
SEM % (%)
|
MDC (mV)
|
MDC % (%)
|
|---|
|
Table to Table 3 kg
|
|
Short reaching distance
|
|
Left
|
5.0
|
12.2
|
13.9
|
33.9
|
1.5
|
10.2
|
4.0
|
28.3
|
|
Right
|
10.0
|
22.4
|
27.6
|
62.0
|
3.7
|
23.6
|
10.3
|
65.3
|
|
Long reaching distance
|
|
Left
|
4.8
|
9.4
|
13.3
|
26.0
|
1.8
|
10.5
|
5.1
|
29.2
|
|
Right
|
7.9
|
15.2
|
21.9
|
42.0
|
2.9
|
15.9
|
7.9
|
44.1
|
|
Trunk rotation
|
|
Left
|
7.1
|
12.4
|
19.7
|
34.4
|
2.3
|
11.9
|
6.3
|
33.0
|
|
Right
|
8.6
|
24.8
|
23.7
|
68.8
|
2.1
|
17.5
|
5.7
|
48.5
|
|
Table to Table 15 kg
|
|
Short reaching distance
|
|
Left
|
10.5
|
13.8
|
29.0
|
38.4
|
3.6
|
13.9
|
9.9
|
38.4
|
|
Right
|
9.0
|
11.6
|
24.9
|
32.1
|
3.0
|
11.2
|
8.4
|
31.1
|
|
Long reaching distance
|
|
Left
|
9.4
|
9.3
|
25.9
|
25.8
|
4.1
|
12.1
|
11.3
|
33.6
|
|
Right
|
15.0
|
14.6
|
41.4
|
40.5
|
3.5
|
10.2
|
9.8
|
28.1
|
|
Trunk rotation
|
|
Left
|
12.9
|
13.5
|
35.8
|
37.4
|
3.7
|
11.6
|
10.3
|
32.3
|
|
Right
|
26.7
|
38.6
|
73.9
|
107.0
|
6.5
|
27.7
|
18.0
|
76.8
|
|
Table to Table 30 kg
|
|
Short reaching distance
|
|
Left
|
13.2
|
11.2
|
36.6
|
31.0
|
6.0
|
15.2
|
16.7
|
42.0
|
|
Right
|
15.9
|
13.2
|
44.1
|
36.5
|
4.5
|
10.9
|
12.4
|
30.1
|
|
Floor to Table 3 kg
|
|
Short reaching distance
|
|
Left
|
15.4
|
12.7
|
42.7
|
35.1
|
4.2
|
10.8
|
11.6
|
29.9
|
|
Right
|
18.4
|
14.6
|
51.0
|
40.4
|
5.7
|
13.5
|
15.7
|
37.3
|
|
Long reaching distance
|
|
Left
|
21.4
|
16.9
|
59.4
|
46.9
|
7.8
|
19.1
|
21.5
|
52.9
|
|
Right
|
26.1
|
20.7
|
72.1
|
57.4
|
8.4
|
20.0
|
23.4
|
55.4
|
|
Trunk rotation
| | | | | | | | |
|
Left
|
15.1
|
12.6
|
41.8
|
35.0
|
4.9
|
12.7
|
13.5
|
35.3
|
|
Right
|
25.5
|
21.0
|
70.8
|
58.3
|
7.8
|
19.0
|
21.7
|
52.7
|
|
Floor to Table 15 kg
|
|
Short reaching distance
|
|
Left
|
17.7
|
10.2
|
49.2
|
28.2
|
8.2
|
14.6
|
22.7
|
40.3
|
|
Right
|
23.5
|
13.3
|
65.2
|
36.8
|
9.1
|
15.3
|
25.1
|
42.5
|
|
Long reaching distance
|
|
Left
|
24.1
|
12.7
|
66.8
|
35.3
|
12.9
|
21.0
|
35.7
|
58.3
|
|
Right
|
29.9
|
15.9
|
82.8
|
43.1
|
12.3
|
19.2
|
34.0
|
53.2
|
|
Trunk rotation
| | | | | | | | |
|
Left
|
15.1
|
8.9
|
41.8
|
24.8
|
7.6
|
13.7
|
21.0
|
38.1
|
|
Right
|
21.1
|
12.1
|
58.4
|
33.5
|
8.2
|
14.0
|
22.8
|
38.9
|
|
Floor to Table 30 kg
|
|
Short reaching distance
|
|
Left
|
28.7
|
13.1
|
79.5
|
36.3
|
15.0
|
21.0
|
41.5
|
58.1
|
|
Right
|
33.8
|
15.0
|
93.6
|
41.7
|
11.8
|
15.9
|
32.7
|
44.0
|
- Forearm length = short distance, ¾ arm distance = long distance and trunk rotation = short distance with trunk rotation
