Neck Strengthening in Non-Specific Chronic Neck Pain

"4months with multimodal physiotherapy. 2 sessions/week. Sessions consisted of two sessions of 1 hour per week, focusing on neck and arm movements. Each session included education and manual therapy (20 minutes), and exercises targeting neck extensors, flexors, and shoulder girdle muscles (40 minutes).~Low-intensity neck resistance training :~Participants have to perform arm, neck flexors and extensors exercise. motor control exercises focusing on deep neck muscles, slow dynamic and static contractions (10 to 20 seconds) with low resistance using TheraBand and weights ranging from 0.5 kg to 1 kg.~High-Intensity Neck resistance training :~neck flexors exercise, neck extensors exercise, and one exercise for shoulder/upper limb. static contractions (10-seconds) and dynamic neck movements using a handheld biofeedback dynamometer or weights from 50% to 80% of the 1-repetition maximum"