Table 1
Summary of Tremor Activity as Observed Visually and with EMG in Forearm Muscles
| Visual Observation of Left Hand | Left EDC EMG | Left EIP EMG | Left FDP EMG | Left FCR EMG | |
|---|---|---|---|---|---|
| Sitting at rest, hands resting on lap | − | − | − | − | − |
| Finger to nose maneuver | TT (1) | − | − | − | − |
| Standing with arms at rest at side | − | − | − | − | − |
| Standing with arms at side and making a loose fist with left hand | + | − | − | + | − |
| Standing with arms at side and making a tight fist with left hand | + | − | − | + | − |
| Standing with arms outstretched, hands open | − | − | − | − | − |
| Standing with arm outstretched, making a tight fist with left hand | + | + | − | + | − |
| Standing and holding a light object (1-lb weight) in left hand | + | − | − | − | − |
| Standing and holding a heavy object (5-lb weight) in left hand | + | + | + | + | − |
| Standing and holding a heavy object (10-lb weight) in left hand | + | + | + | + | − |