. 2022 Mar 5;60(9):774–778. doi: 10.1038/s41393-022-00768-z

Table 1.

Inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
1. Adults ≥18 y old 2. Traumatic cervical SCI 3. Time since injury ≥ 1 y 4. Imbalance of muscle strength (at least 1 MRC difference) between biceps and triceps such that a. Weaker muscle MRC = 1–3 b. Stronger muscle MRC = 3–5	1. Contraindications to TMS or tDCS a. Pacemaker b. Metal in skull c. History of seizures d. Pregnancy 2. Active ulcers 3. Traumatic brain injury, Rancho scale <5 or positive MRI/CT findings 4. Excessive tone/spasticity, Modified Ashworth Scale >3 5. Severe contractures or tissue shortening limited movement at elbow or wrist 6. Current participation in ongoing upper extremity therapies

Inclusion criteria

Exclusion criteria

1. Adults ≥18 y old

2. Traumatic cervical SCI

3. Time since injury ≥ 1 y

4. Imbalance of muscle strength (at least 1 MRC difference) between biceps and triceps such that

a. Weaker muscle MRC = 1–3

b. Stronger muscle MRC = 3–5

1. Contraindications to TMS or tDCS

a. Pacemaker

b. Metal in skull

c. History of seizures

d. Pregnancy

2. Active ulcers

3. Traumatic brain injury, Rancho scale <5 or positive MRI/CT findings

4. Excessive tone/spasticity, Modified Ashworth Scale >3

5. Severe contractures or tissue shortening limited movement at elbow or wrist

6. Current participation in ongoing upper extremity therapies