Table 2.  Characteristic EMG activity values during back swing and
forward swing phases as reported in the literature
.
Iliopsoas
60-80% 2
65.1 – 100.9% 2
 
Rectus femoris
25-60% 2
47.8 – 51% 3
32.5 – 68.7% 2
78.6 – 85.5% 3
59.1 – 63.8%3
Vastus lateralis
0 – 40% 2
70% 1
~64 – 102% 2
~80% 1
~80% 1
Vastus medialis
90% 1
33.1 – 40.8%
3
~80% 1
66.9 – 70.4% 3
~80% 1
55.4 – 70.8%3
Biceps femoris
15-25% 2
70% 1
38.9 – 50% 3
5.2 - 30% 2
<30% 1
39.8 – 40.1% 3
~40% 1
53.6 – 54.1%3
Gluteus maximus
5-15% 2
65-70% 1
2.1 – 32.1% 2
<30% 1
~80% 1
Semitendinosus
70% 1
30% 1
~40% 1
Tibialis anterior
40% 1
30% 1
~80% 1
1 De Proft et al. 1988, 2 Dorge et al, 1999, 3 Manolopoulos et al. 2006.