Table 1. Correlation coefficients (r) between GRF metrics and tibial bone load metrics across all trials within a subject.
Ten rows represent the 10 subjects (F = female, M = male). Within a subject, (n) indicates the number of running conditions (of 30 total conditions) that exhibited a measurable GRF impact peak (i.e., evident in more than half the gait cycles). Mean and standard deviation (std) were computed using Fisher’s z transformation.
| Subject | Fvgrf,active | Fvgrf,impact | VALR | Jvgrf | Fvgrf,active | Fvgrf,impact | VALR | Jvgrf |
|---|---|---|---|---|---|---|---|---|
| Ftibia,max | Jtibia | |||||||
| 1 (F) | 0.89 | -0.64, n = 29 | -0.63 | -0.68 | 0.42 | -0.87, n = 29 | -0.84 | -0.34 |
| 2 (F) | 0.84 | -0.47, n = 27 | 0.23 | -0.02 | 0.58 | -0.78, n = 27 | -0.10 | 0.12 |
| 3 (F) | 0.72 | -0.06, n = 10 | 0.01 | -0.36 | -0.17 | -0.62, n = 10 | -0.80 | -0.17 |
| 4 (M) | 0.90 | 0.27, n = 19 | 0.13 | -0.20 | 0.60 | -0.14, n = 19 | -0.27 | -0.20 |
| 5 (F) | 0.72 | -0.33, n = 24 | -0.30 | -0.66 | 0.13 | -0.87, n = 24 | -0.80 | -0.48 |
| 6 (F) | 0.58 | -0.45, n = 19 | 0.13 | -0.49 | -0.60 | 0.30, n = 19 | -0.91 | 0.07 |
| 7 (M) | 0.85 | -0.24, n = 22 | -0.44 | -0.68 | 0.47 | -0.78, n = 22 | -0.81 | -0.53 |
| 8 (M) | 0.26 | 0.34, n = 15 | -0.24 | -0.36 | -0.54 | -0.13, n = 15 | -0.72 | -0.07 |
| 9 (M) | 0.16 | -0.46, n = 16 | -0.65 | -0.84 | -0.65 | -0.10, n = 16 | -0.80 | -0.34 |
| 10 (M) | 0.63 | -0.64, n = 17 | 0.00 | 0.19 | 0.09 | -0.14, n = 17 | -0.62 | 0.74 |
| mean±std | 0.72 ± 0.42 | -0.29 ± 0.37 | -0.20 ± 0.35 | -0.46 ± 0.40 | 0.03 ± 0.51 | -0.51 ± 0.53 | -0.72 ± 0.41 | -0.11 ± 0.41 |
| [min max] | [0.16 0.90] | [-0.64 0.34] | [-0.65 0.23] | [-0.84 0.19] | [-0.65 0.60] | [-0.87 0.30] | [-0.91–0.10] | [-0.53 0.74] |