Table 1.

Summary of the intervention and procedure

Session number	Session type	Name	Main objective of the session
1	Theoretical.	Biomechanics and risk factors.	Learning the basics of biomechanics, risk factors and clarification of erroneous beliefs regarding the causes or origin of non-specific neck pain.
2–4	Practical.	Exercises with thin resistance band.	Doing and learning strength and endurance exercises with thin resistance band. 1.3 kg resistance at 100% elongation.
5	Theoretical.	Psychosocial factors of the non-specific neck pain.	Knowing psychosocial factors of the non-specific neck pain.
6–8	Practical.	Exercises with medium resistance band.	Doing and learning strength and endurance exercises with medium resistance band. 1.7 kg resistance at 100% elongation.
9–11	Practical.	Exercises with heavy resistance band.	Doing and learning strength and endurance exercises with heavy resistance band. 2.1 kg resistance at 100% elongation.
12–14	Practical.	Exercises with extra heavy resistance band.	Doing and learning strength and endurance exercises with extra heavy resistance band. 2.6 kg resistance at 100% elongation.
15–16	Practical.	Exercises with special heavy resistance band.	Doing and learning strength and endurance exercises with special heavy resistance band. 3.3 kg resistance at 100% elongation.