Table 3.

Extreme percentage values of the mean strain $\overline{\epsilon }\%$ in both extension and compression during tasks performed in the frontal plane.

	$\mathbf{Frontal}\mathbf{Plane}\text{—}\overline{\mathit{\epsilon }}\%\mathbf{Extreme}\mathbf{Values}$
	Elevation 90°		Max Elevation
	Pair of Markers	$\overline{\mathit{\epsilon }}\mathit{\%}$	Pair of Markers	$\overline{\mathit{\epsilon }}\mathit{\%}$
Extension	19–20	28.26	19–20	52.95
	25–29	21.32	25–29	49.07
	18–20	21.16	25–28	44.08
	20–24	20.97	20–24	42.65
	20–23AI	20.00	20–23AI	40.90
Compression	3–5AA	−20.54	2–5AA	−30.72
	4–5AA	−19.70	3–5AA	−30.51
	2–5AA	−18.95	1–5AA	−30.44
	1–5AA	−18.37	4–5AA	−26.92
	3–4	−16.14	3–4	−24.17

AI: Angulus Inferior; AA: Angulus Acromialis.