Skip to main content

Table 1 Average muscle onset time in relation to hamstring onset for each subject.

From: Muscle recruitment patterns during the prone leg extension

Subject # Right ES (1) Left ES (2) GM (3) Hamstring (4) Time Span (ms) Order
1 29.3 8.8 -598.7 0 628 1243
2 -173.5 124.3 -96.8 0 173 2431
3 -13.8 -125.5 -676.5 0 676 4123
4 12 -1.3 -70.75 0 70 1423
5 -176.1 -126 -510.7 0 510 4213
6 -111.3 -151 -226.6 0 226 4123
7 22 14.6 -107.3 0 107 2143
8 59 -.25 -102 0 102 1423
9 -15.25 23.12 -131 0 131 2413
10 -46.7 -41.25 -269.5 0 269 4213
11 -227.5 5 -611.25 0 611 2413
12 -2.625 34.5 -407.6 0 407 2413
13 223.2 48.25 -469.12 0 692 1243
14 -42.6 116.8 -576.7 0 576 2413
Mean -33.14 -5.01 -346   370.23  
S.D 114.06 82.19 225.87   230.2  
  1. Represents EMG onset times relative to hamstring firing. ES = Erector Spinae, GM = Gluteus Maximus, ms = milliseonds and SD = Standard Deviation.