Table 6 Evolution of clinical pain during treatment sessions of therapeutic ultrasound injection measured using the Visual Analog and Numerical Categorical Scales

1ª session

7.22 (± 3.39)

–

3.39 (± 1.09)

–

2ª session

4.17 (± 2.66)

 < .0001

1.50 (± 0.92)

 < .0001

3ª session

4.33 (± 3.73)

0.8106

1.83 (1.86)

0.2710

4ª session

2.72 (± 3.29)

0.0213

1.00 (± 1.19)

0.0063

5ª session

3.11 (± 3.53)

0.5761

1.11 (± 1.23)

0.7133

6ª session

3.11 (± 3.45)

1.0000

1.06 (± 1.16)

0.8542

7ª session

2.22 (± 3.17)

0.2020

0.94 (± 1.35)

0.7133

8ª session

3.28 (± 3.48)

0.1300

1.22 (± 1.31)

0.3588

9ª session

2.78 (± 3.44)

0.4723

1.06 (± 1.35)

0.5817

10ª session

2.56 (± 3.17)

0.7493

0.89 (± 1.13)

0.5817