Research Article

Exercise Alters Gait Pattern but Not Knee Load in Patients with Knee Osteoarthritis

Table 4

Joint mechanics at 2nd peak knee abductor moment.

GroupEvaluation time Group effect (baseline) Group effect (follow-up) Treatment effect
BaselineFollow-upMean difference of 95% CIMean difference of 95% CIMean difference of 95% CI
MeanSDMeanSD

Frontal GRF (% BW)Control97.306.510.81~10.810.43~0.90.64N/AN/A
OA97.233.9897.122.64−4~4.20.95

Frontal lever arm (% LL)Control2.220.650.04~0.490.160~0.40.10N/AN/A
OA3.432.073.211.58−0.8~1.20.60

Ankle In(+)/Ev(−) angleControl−2.003.410.43~0.910.640.35~0.80.56N/AN/A
OA−2.613.29−1.232.37−3.6~0.80.17

Ankle IR(+)/ER(−) angleControl2.633.250.21~0.720.480.81~10.81N/AN/A
OA1.252.661.242.29−1.7~1.71.00

Ankle Do(+)/Pl(−) angleControl8.132.890.15~0.650.290.04~0.50.19N/AN/A
OA6.943.505.663.660.35~2.20.02

Ankle In(−)/Ev(+) momentControl−0.310.970.21~0.720.480.43~0.90.64N/AN/A
OA−0.570.52−0.590.81−2.2~3.50.58

Ankle IR(−)/ER(+) momentControl−3.202.220.15~0.650.350.04~0.50.16N/AN/A
OA−4.171.48−4.280.78−1.3~1.50.84

Ankle Do(−)/Pl(+) momentControl9.776.030.6~10.720.6~10.72N/AN/A
OA12.731.6612.751.55−2.3~2.20.98

Hip Add(+)/Abd(−) angleControl6.552.490.35~0.850.560.81~10.81N/AN/A
OA6.833.306.551.96−3.5~4.10.86

Hip IR(+)/ER(−) angleControl0.602.530.04~0.490.160.21~0.70.48N/AN/A
OA2.903.43−0.581.490.2~6.80.04

Hip Flex(+)/Ex(−) angleControl−5.9021.370.15~0.650.840.81~10.03N/AN/A
OA−5.753.24−7.103.66−0.6~3.30.04

Hip Add(−)/Abd(+) momentControl8.254.790.15~0.650.290.15~0.60.41N/AN/A
OA11.331.9710.601.13−0.6~20.21

Hip IR(−)/ER(+) momentControl−1.190.860.35~0.850.560~0.20.05N/AN/A
OA−0.920.720.000.48−2~0.10.07

Hip Flex(−)/Ex(+) momentControl−1.701.610.15~0.650.350~0.20.03N/AN/A
OA−2.581.34−3.621.230.77~1.30.00

Knee Add(+)/Abd(−) angleControl−0.203.330.43~0.910.640.81~10.91N/AN/A
OA−0.593.10−0.881.97−1.4~20.67

Knee IR(+)/ER(−) angleControl0.603.000.21~0.720.480.81~10.91N/AN/A
OA2.003.460.312.71−2.1~5.50.31

Knee Flex (+)/Ex(−) angleControl3.7622.840.21~0.720.480.35~0.80.56N/AN/A
OA8.478.337.586.89−2.6~4.40.54

Knee Add(−)/Abd(+) momentControl2.791.680~0.190.060~0.30.08N/AN/A
OA4.611.514.271.07−0.6~1.20.37

Knee IR(−)/ER(+) momentControl−1.010.660~0.40.10~0.30.08N/AN/A
OA−1.690.70−1.610.42−0.6~0.50.72

Knee Flex (−)/Ex(+) momentControl−0.771.830.81~10.810.15~0.60.29N/AN/A
OA−0.410.65−0.121.06−1.7~1.10.62

values for between-group comparisons at different evaluation times (baseline and follow-up); .
values for within-group comparisons between baseline and follow-up to evaluate the treatment effect; .