Results
Headache, headaches, Pain, SD, headache
Baseline characteristics are presented in Baseline characteristics of the participants in the exercise group and control group.Between-group differences (p-values) were analyzed using an independent-samples t- test*, the Mann–Whitney **Subjective estimation; Forty-one women (72%) in the exercise group participated in all six prescribed supervised sessions, and 24 (41%) in the control group participated in all six placebo transcutaneous electrical nerve stimulation sessions. In the exercise group, the mean weekly number of completed home training sessions was 4.1 (SD 1.2) of the prescribed six during the first 3 months, and 2.8 (SD 1.4) of the prescribed four during the latter 3 months. In the control group, the mean weekly number of completed stretching exercises was 2.2 (SD 0.6) during first 3 months, and 0.5 (SD 0.3) during the latter 3 months.At baseline mean headache intensity was 4.7 (95% confidence intervals, CI 4.4 to 5.0) in the exercise group and 4.8 (4.5 to 5.1) in the control group. Over the 6-month intervention, the mean intensity decreased by −0.6 (SD 1.3) in the exercise group and by −0.4 (SD 1.3) in the control group, with no between-group difference (group*time interaction, Pain intensity (a), frequency (b), and duration (c) of weekly headaches at baseline, after 3 months, and after 6 months in the exercise At baseline, the mean frequency of headache days/week was 4.5 (95% CI 3.9 to 5.1) in the exercise group and 4.4 (3.6 to 5.1) in the control group (At baseline, the mean weekly duration of headache episodes was 30.8 (95% CI 24.7 to 36.9) hours/week in the exercise group and 30.5 (23.9 to 37.1) in the control group (Neck flexor endurance time increased by 22 s (95% CI 11 to 33, Neck function, Neck Disability Index, and Headache Impact TestMaximum hold time of the static test position up to 180 s.Values are the sum of the right and left sides.Scores can vary from 0 to 50.Scores can vary from 36 to 78 points.