Table 3.
PT-STRONG intervention outcome measures.
| Participant no. 2 | Participant no. 3 | Participant no. 6 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Outcome measure | MD C95 | Baseline | Post-test | Difference | Baseline | Post-test | Difference | Baseline | Post-test | Difference |
| Knee extension force | ||||||||||
| Seated 90°, kg | 1.98 | 13.02a | 10.75a | −17.42% | 2.68 | 2.72 | +1.69% | 6.26 | 6.80 | +8.67% |
| Supine 35°, kg | 7.39 | – | – | – | – | – | – | 5.75 | 6.88 | +19.79% |
| Muscle thickness | ||||||||||
| Vastus lateralis, cm | 0.16 | 1.34 | 1.16 | −12.90% | 1.04 | 1.09 | +4.80% | 0.75 | 0.92 | +22.38% * |
| MVIC - vastus lateralis | ||||||||||
| RoA50, s−1 | 1.16 | – | – | – | – | – | – | 0.71 | 0.91 | +26.85% |
| RoA100, s−1 | 1.16 | – | – | – | – | – | – | 0.46 | 0.63 | +37.46% |
| RoA150, s−1 | 1.08 | – | – | – | – | – | – | 0.33 | 0.82 | +146.50% |
| RoA200, s−1 | 0.98 | – | – | – | – | – | – | 0.25 | 0.85 | +240.04% |
| MVIC - rectus femoris | ||||||||||
| RoA50, s−1 | 0.99 | – | – | – | – | – | – | 0.44 | 0.73 | +63.05% |
| RoA100, s−1 | 0.95 | – | – | – | – | – | – | 0.38 | 0.71 | +85.61% |
| RoA150, s−1 | 0.95 | – | – | – | – | – | – | 0.49 | 0.63 | +28.80% |
| RoA200, s−1 | 0.83 | – | – | – | – | – | – | 0.51 | 0.57 | +12.52% |
| MVIC - knee CCI | 0.39 | – | – | – | – | – | – | 0.42 | 0.19 | −55.14% |
| Step-Up - vastus lateralis | ||||||||||
| RoA50, s−1 | 8.10 | – | – | – | – | – | – | 6.40 | 15.74 | +145.99% |
| RoA100, s−1 | 3.73 | – | – | – | – | – | – | 3.82 | 9.35 | +145.06% * |
| RoA150, s−1 | 1.70 | – | – | – | – | – | – | 2.89 | 6.48 | +124.43% * |
| RoA200, s−1 | 0.57 | – | – | – | – | – | – | 2.63 | 4.68 | +77.97% * |
| Step-Up - rectus femoris | ||||||||||
| RoA50, s−1 | 10.60 | – | – | – | – | – | – | 9.74 | 16.24 | +66.71% |
| RoA100, s−1 | 3.03 | – | – | – | – | – | – | 5.40 | 10.18 | +88.48% * |
| RoA150, s−1 | 0.67 | – | – | – | – | – | – | 3.51 | 6.62 | +88.82% * |
| RoA200, s−1 | 0.16 | – | – | – | – | – | – | 2.90 | 4.30 | +48.47% * |
| Step-up - knee CCI | 0.73 | – | – | – | – | – | – | 0.66 | 0.52 | −20.91% |
| Timed Up and Down Stairs, s | 4.03 | 15.43 | 12.38 | −19.77% | 41.92 | 41.94 | +0.05% | 15.90 | 13.55 | −14.78% |
| Timed Up and Go, s | 0.87 | 6.82 | 6.00 | −12.02% | 10.52 | 9.15 | −13.02%* | 12.33 | 8.93 | −27.58%* |
| 9-min Run-Walk, m | 76.13 | 722.99 | 789.74 | +9.23% | 531.57 | 534.92 | +0.63% | 401.12 | 456.59 | +13.83% |
Bold text indicates improvement in outcome measure. CCI, co-contraction index; MVIC, maximum voluntary isometric contractions; RoA, rate of muscle activation.
a
Participant no. 2 had limited knee flexion range of motion; therefore, the strength testing was performed at end-range of knee flexion (baseline: 58°; post-test: 60°).
*
The difference between baseline and post-test exceeded the minimally detectable change (MDC95).