Table 4.

Pearson correlation (r) matrix between variables for the intervention group.

	Δ ARA 0–10 W	Δ ARA 10 W–3 Mo	Δ AHT 0–10 W	Δ AHT 10 W–3 Mo
Δ N13–N20 0–10 W	r = 0.47 P = 0.003		r = 0.6 P < 0.001
Δ N13–N20 10 W–3 Mo		r = − 0.5 P < 0.001		r = 0.54 P < 0.001
Δ N13 0–10 W	r = − 0.6 P < 0.001		r = 0.63 P < 0.001)
Δ N13 10 W–3 Mo		r = − 0.5 P < 0.001		r = 0.7 P < 0.001
Δ p14 0–10 W	r = − 0.5 P < 0.001		r = 0.53 P < 0.001
Δ p14 10 W–3 Mo		r = − 0.4 P = 0.002		r = 0.52 P < 0.001
Δ N20 0–10 W	r = − 0.4 P = 0.003		r = 0.57 P < 0.001
Δ N20 10 W–3 Mo		r = − 0.6 P < 0.001		r = 0.65 P < 0.001
Δ p27 0–10 W	r = − 0.51 P < 0.001		r = 0.67 P < 0.001
Δ p27 10 W–3 Mo		r =  − 0.63 P < 0.001		r = 0.5 P < 0.001
Δ N30 0–10 W	r = 0.62 P < 0.001		r = 0.59 P < 0.001
Δ N30 10 W–3 Mo		r = 0.56 P < 0.001		r = 0.67 P < 0.001

Anterior head translation (AHT), cervical lordosis absolute rotation angle (ARA) C2–C7, Δ = change in the variable over time shown.

Δ 0–10 W: the amount of change between initial base line and 10-weeks of treatment.

Δ 10 W–3 Mo: the amount of change between the 10-weeks of treatment values and 3-month follow-up.