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Table 4 Descriptive statistics for time main effect for all dependent measures at initial contact and peak

From: Implicit video feedback produces positive changes in landing mechanics

  Pretest PST1 PST2 PST3 Retention
Mean (SD) 95% CI Mean (SD) 95% CI Mean (SD) 95% CI Mean (SD) 95% CI Mean (SD) 95% CI
Heel strike
HF (°) 32.8 ± 9.8a 29.0, 36.6 35.3 ± 9.3 31.7, 38.9 36.9 ± 9.7a 33.2, 40.6 37.9 ± 11.3a 33.5, 42.3 34.1 ± 11.5a 29.7, 38.5
HA (°) −8.2 ± 4.6 −9.9, −6.5 −7.5 ± 3.8 − 8.9, − 6.1 − 7.9 ± 4.9 −9.7, − 6.1 −8.3 ± 5.3 − 10.3, − 6.3 −8.2 ± 5.1 −10.1, − 6.3
HAM (Nm/kg) 0.09 ± 0.4a −0.1, 0.2 −0.08 ± 0.4a −0.2, 0.05 −0.02 ± 0.4a −0.2, 0.2 0.05 ± 0.3 −0.1, 0.2 0.04 ± 0.3 −0.1, 0.2
KF (°) −29.2 ± 7.2 −32, − 26.4 −31 ± 7 −33.6, − 28.2 − 31.4 ± 8.4 − 34.6, − 28.1 − 30.8 ± 8.5 − 34, − 27.5 −30.6 ± 9.7 − 34.4, − 26.9
KA (°) 0.7 ± 3.3a −0.6, 1.9 0.2 ± 3.5a − 1.2, 1.6 1.0 ± 3.2 −0.2, 2.2 1.7 ± 3a 0.6, 2.9 0.7 ± 3 −0.5, 1.8
KAM (Nm/kg) 0.003 ± 0.2 −0.07, 0.08 −0.05 ± 0.2a − 0.1, 0.02 −0.02 ± 0.2 − 0.09, − 0.06 0.01 ± 0.2a −0.06, 0.08 0.004 ± 0.2 −0.08, 0.07
Peak
HF (°) 32.8 ± 9.8a 29.0, 36.6 35.5 ± 9.1 32.0, 38.9 36.6 ± 9.9 32.7, 40.4 37.9 ± 11.3a 33.5, 42.3 34.3 ± 11.5a 29.9, 38.7
HA (°) −5.9 ± 5.3 −7.8, −4 −5.7 ± 4.3 − 7.3, − 4.2 − 5.8 ± 4.9 −7.5, − 4 −6.4 ± 5.7 −8.6, − 4.2 −6.2 ± 6.1 −8.4, − 4.1
HAM (Nm/kg) −1.2 ± 0.7 − 1.5, − 1 − 1.2 ± 0.6a − 1.4, − 1 − 1.1 ± 0.4 −1.3, − 1 −1.1 ± 0.5 − 1.3, − 0.9 −1 ± 0.4a − 1.2, − 0.9
KF (°) − 100.1 ± 13.9a −104.7, − 95.6 − 105 ± 15.3 − 110.9, − 99.2 − 105 ± 18.2a − 111.8, − 98 −106.1 ± 15.4 − 112, − 100.2 105 ± 15.9a − 111, − 99
KA (°) − 5.0 ± 4.6a − 6.7, − 3.2 − 5.7 ± 4.7 − 7.5, − 3.9 − 4.5 ± 3.5 −5.8, − 3.2 −3.2 ± 3.7 − 4.6, − 1.8 − 5.8 ± 3.3a − 7.0, − 4.5
KAM (Nm/kg) − 0.4 ± 0.2 − 0.5, − 0.3 −0.4 ± 0.2 − 0.5, − 0.3 −0.4 ± 0.2a − 0.4, − 0.3 −0.4 ± 0.2 − 0.4, − 0.3 −0.3 ± 0.2a − 0.4, − 0.3
GRF (N) 2254.9 ± 389a 2107, 2402 2195.3 ± 352a 2059, 2332 2093.4 ± 377 1948, 2239 2061.2 ± 370a 1918, 2205 2049.3 ± 341a 1919, 2181
  1. Mean ± standard deviation (SD) and 95% confidence intervals (CI)
  2. Hip flexion (HF), hip abduction (HA), hip abduction moment (HAM), knee flexion (KF), knee abduction (KA), knee abduction moment (KAM)
  3. Implicit group (IG), explicit group (EG), Control group (CG)
  4. aStatistically significant results