Table 1b Calculated with different thresholds in GL muscle. NS, were not calculated because of non significant correlation between actual and estimated number of bursts. Threshold Value 25 % (n=9) 35 % (n=9) 45 % (n=9) 2 34.2 NS NS 3 NS NS 29.5 4 NS 7.3 NS 5 NS NS NS 6 5.0 5.0 6.3 7 0.4 3.9 4.6 8 6.1 6.1 6.1 9 3.4 3.4 3.4 10 7.0 5.1 2.4 11 1.6 1.6 1.6