Physical Therapy Korea
pISSN 1225-8962
eISSN 2287-982X
Physical Therapy Korea
Mean ± standard deviation of the neck and upper trunk muscle activity (%RVC) (N = 20)
| 0 min | 5 min | 10 min | 15 min | Feedback p-value (F) | Time p-value (F) | |
|---|---|---|---|---|---|---|
| CES | ||||||
| Nonfeedback | 45.99 ± 25.01 | 51.12 ± 32.66 | 53.81 ± 36.67 | 52.87 ± 29.07 | 0.008 |
0.001 |
| Feedback | 39.05 ± 20.20 | 41.96 ± 29.54 | 43.43 ± 29.16 | 43.33 ± 27.56 | ||
| UT | ||||||
| Nonfeedback | 18.54 ± 18.47 | 25.10 ± 28.61 | 28.27 ± 33.08 | 26.26 ± 23.12 | 0.116 (2.72) | 0.098 (2.46) |
| Feedback | 18.24 ± 20.41 | 19.76 ± 24.97 | 20.66 ± 23.16 | 19.93 ± 21.94 | ||
Values are presented as mean ± standard deviation. %RVC, percentage of reference voluntary contraction; CES, cervical erector spinae; UT, upper trapezius. **p < 0.01.