PMC8848065_01
Partial surface EMG tracing of the flexor (top) and extensor (bottom) carpi radialis longus muscles during re-emergent tremor showing asynchronous activity in case 1.
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fig1-CCRep.S11903
Contractions were asynchronous (Fig. 1).
PMC8848065_02
(A) Surface EMG evaluation showing 6 Hz biceps (top) and triceps synchronous postural tremor of the right elbow in case 2. (B) Surface EMG evaluation of left flexor (top) and extensor pollicis brevis muscles showing 7 Hz synchronous thumb flexion and extension postural tremor without latency in case 3. (C) Surface EMG evaluation left flexor (top) and extensor pollicis brevis muscles showing 7 Hz synchronous thumb flexion and extension rest tremor in case 3.
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PMC8848065_03_10.4137_CCRep.S11903-fig2.jpg
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EMG evaluation of the left flexor and extensor pollicis brevis muscles revealed a 7 Hz synchronous postural tremor (Fig. 2B) and a 7 Hz synchronous rest tremor (Fig. 2C).
PMC8848065_03
(A) Surface EMG evaluation showing 6 Hz biceps (top) and triceps synchronous postural tremor of the right elbow in case 2. (B) Surface EMG evaluation of left flexor (top) and extensor pollicis brevis muscles showing 7 Hz synchronous thumb flexion and extension postural tremor without latency in case 3. (C) Surface EMG evaluation left flexor (top) and extensor pollicis brevis muscles showing 7 Hz synchronous thumb flexion and extension rest tremor in case 3.
10.4137_CCRep.S11903-fig2.jpg
PMC8848065_03_10.4137_CCRep.S11903-fig2.jpg
fig2-CCRep.S11903
EMG evaluation of the left flexor and extensor pollicis brevis muscles revealed a 7 Hz synchronous postural tremor (Fig. 2B) and a 7 Hz synchronous rest tremor (Fig. 2C).