Table 1.
subject | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
EMGi-EMGi | mean | range | ||||||||||
1-2 | 0.00 | 0.31 | -0.02 | 0.62 | 0.51 | 0.10 | 0.26 | 0.56 | 0.87 | 0.97 | 0.42 | 0.99 |
1-3 | 0.30 | -0.15 | 0.01 | 0.78 | 0.58 | 0.12 | 0.96 | 0.86 | 0.84 | 0.97 | 0.53 | 1.12 |
1-4 | -0.07 | 0.44 | 0.39 | 0.59 | 0.65 | 0.64 | 0.26 | 0.46 | 0.96 | 0.96 | 0.53 | 1.03 |
1-5 | 0.19 | -0.12 | -0.04 | 0.60 | 0.34 | 0.10 | 0.89 | 0.86 | 0.79 | 0.79 | 0.44 | 1.01 |
1-6 | -0.06 | 0.43 | 0.30 | 0.43 | 0.46 | 0.72 | 0.28 | 0.38 | 0.73 | 0.81 | 0.45 | 0.86 |
2-3 | 0.73 | 0.87 | 0.90 | 0.61 | 0.78 | 0.89 | 0.94 | 0.93 | 0.69 | 0.84 | 0.82 | 0.33 |
2-4 | 0.25 | 0.20 | -0.02 | 0.36 | 0.34 | 0.10 | 0.87 | 0.81 | 0.80 | 0.82 | 0.45 | 0.89 |
2-5 | -0.07 | 0.65 | 0.52 | 0.18 | 0.70 | 0.70 | 0.32 | 0.43 | 0.94 | 0.80 | 0.52 | 1.01 |
2-6 | 0.60 | 0.45 | 0.76 | 0.32 | 0.55 | 0.69 | 0.81 | 0.81 | 0.91 | 0.81 | 0.67 | 0.59 |
3-4 | 0.51 | 0.44 | 0.67 | 0.42 | 0.45 | 0.73 | 0.77 | 0.75 | 0.66 | 0.76 | 0.62 | 0.36 |
3-5 | 0.25 | 0.04 | -0.04 | 0.52 | 0.29 | 0.14 | 0.59 | 0.85 | 0.74 | 0.87 | 0.42 | 0.91 |
3-6 | -0.04 | 0.36 | 0.45 | 0.39 | 0.37 | 0.59 | 0.21 | 0.53 | 0.82 | 0.84 | 0.45 | 0.88 |
4-5 | 0.59 | 0.43 | 0.87 | 0.43 | 0.38 | 0.82 | 0.58 | 0.90 | 0.76 | 0.87 | 0.66 | 0.52 |
4-6 | 0.31 | 0.28 | 0.78 | 0.44 | 0.32 | 0.82 | 0.58 | 0.86 | 0.72 | 0.76 | 0.59 | 0.57 |
5-6 | 0.48 | 0.42 | 0.76 | 0.50 | 0.47 | 0.52 | 0.55 | 0.84 | 0.73 | 0.92 | 0.62 | 0.50 |
mean | 0.26 | 0.34 | 0.42 | 0.48 | 0.48 | 0.51 | 0.59 | 0.72 | 0.80 | 0.85 | 0.55 | |
range | 0.80 | 1.02 | 0.94 | 0.60 | 0.49 | 0.79 | 0.75 | 0.55 | 0.30 | 0.21 | 0.40 | |
EMG2-Sup./Pro. | 0.37 | 0.29 | 0.26 | 0.12 | 0.18 | 0.31 | 0.73 | 0.29 | 0.51 | 0.36 | 0.34 | 0.61 |
Each row lists the correlation coefficients for one pair of EMG recordings, with the numbers corresponding to the traces in Figure 1: intramuscular recordings for brachialis (1) and the long head of biceps brachii (2), and surface recordings for the long (3) and short (4) heads of biceps brachii, brachioradialis (5), and triceps brachii (6). The last row shows the correlations between the change in EMG amplitude of biceps brachii long head and supination-pronation torque.