Skip to main content
. 2018 Aug 15;13(8):e0202261. doi: 10.1371/journal.pone.0202261

Table 3. Descriptive statistics (mean ± standard deviation) by time-moment and intra-individual differences.

Parameter Muscle group Action Unit Time-moment Mean difference Paired t-test Magnitude effect
M1
(n = 26)
M2
(n = 26)
Value (95% CI) t p d Qualitative
(a) PT KE cc N·m 224.7±44.3 222.0±43.0 2.7 (–0.1 to 5.6) 2.001 0.06 0.06 trivial
(b) PT KE ecc N·m 262.7±64.0 263.1±63.9 –0.4 (–5.1 to 4.3) 0.176 0.86 0.01 trivial
(c) PT KF cc N·m 132.7±26.0 129.4±25.5 3.3 (0.1 to 6.6) 2.062 ≤0.05 0.13 trivial
(d) PT KF ecc N·m 153.3±30.9 155.1±27.7 –1.8 (–6.4 to 2.8) 0.797 0.43 0.06 trivial
(e) T at angle of PT_KEcc KF cc N·m 109.5±20.9 107.1±19.6 2.5 (–0.1 to 5.0) 2.027 ≤0.05 0.12 trivial
(f) T at angle of PT_KEcc KF ecc N·m 114.3±18.0 115.5±17.5 –1.2 (–3.9 to 1.5) 0.920 0.37 0.07 trivial
(g) T at angle of PT_KEecc KF cc N·m 110.8±26.1 108.9±24.3 1.8 (–0.9 to 4.6) 1.367 0.18 0.08 trivial
Conventional ratio (c)/(a) 0.60±0.08 0.59±0.08 0.01 (–0.01 to 0.02) 1.026 0.32 0.13 trivial
Conventional ratio at angle of PT_KEcc (e)/(a) 0.49±0.07 0.49±0.08 0.01 (–0.01 to 0.01) 1.420 0.17 0.01 trivial
Functional extension ratio (d)/(a) 0.69±0.11 0.71±0.10 –0.02 (–0.04 to 0.01) 1.911 0.07 0.19 trivial
Functional extension ratio at angle of PT_KEcc (f)/(a) 0.52±0.09 0.53±0.09 0.01 (–0.01 to 0.02) 2.586 ≤0.05 0.11 trivial
Functional flexion ratio (c)/(b) 0.53±0.17 0.52±0.16 0.01 (–0.01 to 0.03) 1.845 0.08 0.06 trivial
Functional flexion ratio at angle of PT_KEecc (g)/(b) 0.83±0.10 0.84±0.08 –0.01 (–0.02 to 0.01) 1.032 0.31 0.11 trivial

Abbreviations: M1, time-moment 1; M2, time-moment 2; 95% CI, 95% confidence interval; PT, peak torque; T, torque; KE; knee extensors; KF; knee flexors; cc, concentric; ecc, eccentric.