Electromyography activity while in postanesthesia care unit (n=20)
| Variable | Muscle | ||
|---|---|---|---|
| Upper trapezius | Biceps brachii | Rectus femoris | |
| Total muscle contraction | 72 | 75 | 95 |
| Contraction over 20% of MVIC | |||
| Events | 4 | 1 | 10 |
| Mean duration (sec) | 2.72 | 0.26 | 0.67 |
| MVIC rate (%) | |||
| Maximum | 49.05 | 29.48 | 35.45 |
| Mean±SD | 27.18±5.52 | 25.03±0.06 | 27.20±4.23 |
MVIC: maximum voluntary isometric contraction, SD: standard deviation.
