Table 3.
Reliability in tensiomyography parameters for Rectus Femoris muscle (n = 36).
| RF | Electrode 3.2 cm | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M ± SD | Stimulus length 0.2 | M ± SD | Stimulus length 0.5 | M ± SD | Stimulus length 1 | |||||||||||||
| ICC CI 95% | CV% | SEM SEM% | MDC | MDC% | ICC CI 95% | CV% | SEM SEM% | MDC | MDC% | ICC CI 95% | CV% | SEM SEM% | MDC | MDC% | ||||
| Dm (mm) | 7.63 ± 2.10 | 0.98 (0.97-0.99) | 4.1 | 0.28 ± 3.77 | 0.79 | 10.46 | 8.60 ± 2.51 | 0.98 (0.97-0.99) | 3.7 | 0.31 ± 3.68 | 0.88 | 10.23 | 9.23 ± 2.19 | 0.98 (0.97-0.99) | 2.9 | 0.28 ± 3.09 | 0.79 | 8.59 |
| Tc (ms) | 26.14 ± 4.79 | 0.98 (0.96-0.99) | 3.0 | 0.67 ± 2.58 | 1.87 | 7.15 | 26.38 ± 4.77 | 0.98 (0.97-0.99) | 2.4 | 0.57 ± 2.16 | 1.58 | 6.00 | 26.95 ± 4.67 | 0.98 (0.97-0.99) | 2.4 | 0.57 ± 2.12 | 1.59 | 5.90 |
| Td (ms) | 24.50 ± 1.96 | 0.94 (0.90-0.97) | 2.3 | 0.49 ± 2.01 | 1.35 | 5.58 | 24.82 ± 1.90 | 0.96 (0.93-0.98) | 1.8 | 0.40 ± 1.61 | 1.08 | 4.46 | 24.95 ± 1.93 | 0.93 (0.88-0.96) | 2.7 | 0.53 ± 2.14 | 1.48 | 5.96 |
| Tr (ms) | 73.77 ± 39.12 | 0.86 (0.77-0.92) | 26.2 | 14.92 ± 20.23 | 41.37 | 56.09 | 65.21 ± 40.77 | 0.90 (0.84-0.95) | 31.1 | 13.26 ± 20.34 | 36.77 | 56.38 | 73.52 ± 52.98 | 0.96 (0.92-0.97) | 18.8 | 12.00 ± 16.32 | 33.26 | 45.24 |
| Ts (ms) | 117.77 ± 44.88 | 0.87 (0.78-0.92) | 21.2 | 16.70 ± 14.18 | 46.29 | 39.35 | 105.07 ± 44.86 | 0.91 (0.86-0.95) | 18.2 | 13.66 ± 13.00 | 37.87 | 36.04 | 109.30 ± 52.25 | 0.96 (0.92-0.97) | 12.7 | 12.54 ± 11.47 | 34.77 | 31.79 |
| Electrode 5 cm | ||||||||||||||||||
| Dm (mm) | 8.67 ± 2.24 | 0.98 (0.97-0.99) | 4.2 | 0.35 ± 4.10 | 0.98 | 11.39 | 9.53 ± 2.16 | 0.98 (0.96-0.99) | 4.2 | 0.31 ± 3.29 | 0.87 | 9.15 | 10.04 ± 2.23 | 0.98 (0.96-0.99) | 3.5 | 0.33 ± 3.37 | 0.93 | 9.36 |
| Tc (ms) | 26.25 ± 4.81 | 0.97 (0.95-0.98) | 2.7 | 0.87 ± 3.33 | 2.42 | 9.24 | 26.19 ± 4.22 | 0.98 (0.96-0.99) | 2.6 | 0.61 ± 2.34 | 1.70 | 6.50 | 26.30 ± 4.12 | 0.99 (0.98-0.99) | 2.0 | 0.45 ± 1.72 | 1.26 | 4.79 |
| Td (ms) | 24.79 ± 1.96 | 0.93 (0.84-0.96) | 2.0 | 0.53 ± 2.15 | 1.47 | 5.96 | 25.14 ± 1.77 | 0.94 (0.89-0.96) | 2.0 | 0.45 ± 1.80 | 1.25 | 5.00 | 25.36 ± 1.87 | 0.94 (0.90-0.97) | 2.3 | 0.46 ± 1.81 | 1.27 | 5.04 |
| Tr (ms) | 75.64 ± 49.14 | 0.83 (0.73-0.90) | 33.0 | 23.37 ± 30.89 | 64.79 | 85.66 | 69.34 ± 53.41 | 0.82 (0.71-0.90) | 40.9 | 28.75 ± 41.46 | 79.70 | 114.94 | 64.96 ± 51.58 | 0.94 (0.89-0.96) | 22 | 19.68 ± 30.29 | 46.26 | 71.21 |
| Ts (ms) | 110.95 ± 45.82 | 0.87 (0.79-0.93) | 20.3 | 17.10 ± 15.41 | 47.40 | 42.72 | 102.17 ± 52.92 | 0.83 (0.73-0.90) | 22.9 | 26.90 ± 26.32 | 74.56 | 72.98 | 97.92 ± 51.98 | 0.94 (0.89-0.96) | 14.2 | 16.94 ± 17.29 | 46.97 | 47.97 |
Data are mean ± SD. RF: Rectus Femoris; Dm: displacement; Tc: contraction time; Td: delay time; Tr: half-relaxation time; Ts: sustain time; ms: milliseconds. CV: coefficient of variation; cm: centimeters; ICC: intraclass correlation coefficient; CI: confidence interval; SEM standard error of measurement; MDC: minimum detectable change.