TABLE 2.
Summary of the Mean Minimum Strain and the Mean Maximum Strain (Along Sx, Sy, and Sz) Across the Five Subjects During Load and Recovery in the Individual IVD ROIs
| ROI | L1/L2 | L2/L3 | L3/L4 | L4/L5 | L5/S1 | |
|---|---|---|---|---|---|---|
| Strain during load (%) | ||||||
| Sx | Min | −4.4 ± 1.7 | −5.4 ± 2.4 | −6.0 ± 1.8 | −7.5 ± 2.9 | −6.7 ± 3.7 |
| Max | 9.3 ± 5.5 | 8.5 ± 3.5 | 5.6 ± 1.9 | 6.2 ± 2.6 | 6.4 ± 2.3 | |
| Sy | Min | −3.2 ± 1.5 | −3.9 ± 2.5 | −3.9 ± 1.9 | −4.3 ± 2.4 | −3.3 ± 1.4 |
| Max | 6.0 ± 5.6 | 5.1 ± 3.9 | 4.5 ± 2.7 | 4.1 ± 1.8 | 5.4 ± 3.4 | |
| Sz | Min | −5.4 ± 3.3 | −4.9 ± 2.4 | −4.8 ± 2.6 | −5.5 ± 3.0 | −5.8 ± 3.5 |
| Max | 6.8 ± 4.1 | 5.1 ± 2.1 | 5.4 ± 2.3 | 5.5 ± 2.2 | 6.5 ± 3.8 | |
| Strain during recovery (%) | ||||||
| Sx | Min | −3.9 ± 2.5 | −4.5 ± 2.8 | −4.4 ± 1.9 | −5.0 ± 3.0 | −4.4 ± 3.0 |
| Max | 3.0 ± 2.1 | 3.7 ± 2.7 | 4.5 ± 3.3 | 3.4 ± 1.8 | 4.1 ± 3.5 | |
| Sy | Min | −2.9 ± 1.9 | −3.2 ± 2.9 | −2.9 ± 1.6 | −2.7 ± 1.6 | −2.7 ± 1.7 |
| Max | 2.3 ± 1.1 | 2.9 ± 2.8 | 3.0 ± 2.2 | 3.0 ± 1.8 | 4.2 ± 3.9 | |
| Sz | Min | −4.7 ± 2.8 | −5.3 ± 2.3 | −5.5 ± 3.9 | −8.0 ± 7.8 | −8.6 ± 8.6 |
| Max | 4.5 ± 3.0 | 4.6 ± 2.4 | 4.5 ± 2.5 | 5.2 ± 3.6 | 4.8 ± 2.6 | |
IVD = intervertebral disc; ROIs = regions of interest.