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Table 7 Adverse effects

From: Relative effectiveness and adverse effects of cervical manipulation, mobilisation and the activator instrument in patients with sub-acute non-specific neck pain: results from a stopped randomised trial

Adverse symptom

Activator

Manipulation

Mobilisation

Mildly increased neck pain

7

4

2

Mild radiating pain

5

2

1

Mild arm weakness

1

0

0

Mild arm numbness

1

0

0

Mild headache

3

3

4

Mild fatigue

3

3

0

Mild dizziness

1

1

1

Mild muscle twitching

0

1

0

  1. Values represent the number of subjects in each group experiencing the symptom. All symptoms were short-lived (1-3 days).