TABLE 2.

Strain-based biomechanics exposure metrics

	Description	Metric	Cumulative metric	Units
First principal strain (ε1)	Strain (95th%)	ε 1,95	Σε 1,95	mm/mm
	Strain (100th%)	ε 1,100	Σε 1,100	mm/mm
	Strain rate (95th%)	${\dot{\epsilon }}_{1,95}$	$\Sigma {\dot{\epsilon }}_{1,95}$	s−1
	Strain rate (100th%)	${\dot{\epsilon }}_{1,100}$	$\Sigma {\dot{\epsilon }}_{1,100}$	s−1
	Strain*strain rate (95th%)	${\epsilon }_{1,95}\ast {\dot{\epsilon }}_{1,95}$	$\Sigma {\epsilon }_{1,95}\ast {\dot{\epsilon }}_{1,95}$	mm/mm*s−1
	Strain*strain rate (100th%)	${\epsilon }_{1,100}\ast {\dot{\epsilon }}_{1,100}$	$\Sigma {\epsilon }_{1,100}\ast {\dot{\epsilon }}_{1,100}$	mm/mm*s−1
	VSM	VSM 1	ΣVSM 1	mm/mm
	VSRM	VSRM 1	ΣVSRM 1	s−1
	VSM*strain (95th%)	VSM1 * ε1,95	ΣVSM1 * ε1,95	mm/mm
	VSM*strain (100th%)	VSM1 * ε1,100	ΣVSM1 * ε1,100	mm/mm
	VSM*strain rate (95th%)	$VS{M}_1\ast {\dot{\epsilon }}_{1,95}$	$\Sigma VS{M}_1\ast {\dot{\epsilon }}_{1,95}$	s−1
	VSM*strain rate (100th%)	$VS{M}_1\ast {\dot{\epsilon }}_{1,100}$	$\Sigma VS{M}_1\ast {\dot{\epsilon }}_{1,100}$	s−1
third principal strain (ε3)	strain (5th%)	ε 3,5	Σε 3,5	mm/mm
	strain (0%)	ε 3,0	Σε 3,0	mm/mm
	strain rate (5th%)	${\dot{\epsilon }}_{3,5}$	$\Sigma {\dot{\epsilon }}_{3,5}$	s−1
	strain rate (0%)	${\dot{\epsilon }}_{3,0}$	$\Sigma {\dot{\epsilon }}_{3,0}$	s−1
	strain*strain rate (5th%)	$\Sigma {\epsilon }_{3,5}\ast {\dot{\epsilon }}_{3,5}$	${\epsilon }_{3,5}\ast {\dot{\epsilon }}_{3,5}$	mm/mm*s−1
	strain*strain rate (0%)	$\Sigma {\epsilon }_{3,0}\ast {\dot{\epsilon }}_{3,0}$	${\epsilon }_{3,0}\ast {\dot{\epsilon }}_{3,0}$	mm/mm*s−1
	VSM	VSM 3	ΣVSM 3	mm/mm
	VSRM	VSRM 3	ΣVSRM 3	s−1
	VSM*strain (5th%)	VSM3 * ε3,5	ΣVSM3 * ε3,5	mm/mm
	VSM*strain (0%)	VSM3 * ε3,0	ΣVSM3 * ε3,0	mm/mm
	VSM*strain rate (5th%)	$VS{M}_3\ast {\dot{\epsilon }}_{3,5}$	$\Sigma VS{M}_3\ast {\dot{\epsilon }}_{3,5}$	s−1
	VSM*strain rate (0%)	$VS{M}_3\ast {\dot{\epsilon }}_{3,0}$	$\Sigma VS{M}_3\ast {\dot{\epsilon }}_{3,0}$	s−1
Shear strain (γ)	Shear strain (95th%)	γ 95	Σγ 95	mm/mm
	Strain (100th%)	γ 100	Σγ 100	mm/mm
	Strain rate (95th%)	${\dot{\gamma }}_{95}$	$\Sigma {\dot{\gamma }}_{95}$	s−1
	Strain rate (100th%)	${\dot{\gamma }}_{100}$	$\Sigma {\dot{\gamma }}_{100}$	s−1
	Strain*strain rate (95th%)	${\gamma }_{95}\ast {\dot{\gamma }}_{95}$	$\Sigma {\gamma }_{95}\ast {\dot{\gamma }}_{95}$	mm/mm*s−1
	Strain*strain rate (100th%)	${\gamma }_{100}\ast {\dot{\gamma }}_{100}$	$\Sigma {\gamma }_{100}\ast {\dot{\gamma }}_{100}$	mm/mm*s−1
	VSSM	VSSM	ΣVSSM	mm/mm
	VSSRM	VSSRM	ΣVSSRM	s−1
	VSSM*shear strain (95th%)	VSSM * γ95	ΣVSSM * γ95	mm/mm
	VSSM*shear strain (100th%)	VSSM * γ100	ΣVSSM * γ100	mm/mm
	VSSM*shear strain rate (95th%)	$VSSM\ast {\dot{\gamma }}_{95}$	$\Sigma VSSM\ast {\dot{\gamma }}_{95}$	s−1
	VSSM*shear strain rate (100th%)	$VSSM\ast {\dot{\gamma }}_{100}$	$\Sigma VSSM\ast {\dot{\gamma }}_{100}$	s−1