Skip to main content

Advertisement

Table 5 Mean isokinetic knee extension and flexion data observed over time

From: Effects of diet type and supplementation of glucosamine, chondroitin, and MSM on body composition, functional status, and markers of health in women with knee osteoarthritis initiating a resistance-based exercise and weight loss program

Variable 0 Weeks 10 14 Group p-level Time G × T
5 Repetitions at 60 deg/sec       
Peak Torque - RL Extension (kg/m) 9.90 ± 2.0 10.38 ± 2.6 10.69 ± 2.8 0.36 0.13 0.69
Peak Torque - LL Extension (kg/m) 9.15 ± 2.2 10.38 ± 2.6† 10.34 ± 2.9† 0.47 0.04 0.44
Peak Torque - RL Flexion (kg/m) 4.66 ± 1.6 5.53 ± 1.6† 5.99 ± 2.1† 0.62 0.003 0.90
Peak Torque - LL Flexion (kg/m) 4.44 ± 1.6 5.47 ± 1.7† 5.61 ± 1.9† 0.71 0.01 0. 45
Fatigue Index - RL Extension (%) -0.8 ± 50 9.4 ± 18 8.7 ± 25 0.79 0.32 0.54
Fatigue Index - LL Extension (%) 3.5 ± 30 11.1 ± 19 11.0 ± 18 0.73 0.38 0.41
Fatigue Index - RL Flexion (%) -8.8 ± 72 16.9 ± 28† 25.3 ± 13† 0.23 0.02 0.28
Fatigue Index - LL Flexion (%) 12.6 ± 30 19.4 ± 18 23.4 ± 10 0.82 0.12 0.75
10 Repetitions at 180 deg/sec       
Peak Torque - RL Extension (kg/m) 6.05 ± 2.3 6.45 ± 2.4 6.82 ± 2.4† 0.12 0.05 0.40
Peak Torque - LL Extension (kg/m) 5.60 ± 2.8 6.40 ± 2.7 6.85 ± 2.3† 0.47 0.04 0.44
Peak Torque - RL Flexion (kg/m) 2.80 ± 1.5 3.70 ± 1.8† 4.10 ± 1.9† 0.35 0.001 0.66
Peak Torque - LL Flexion (kg/m) 2.68 ± 1.7 3.49 ± 1.6† 3.90 ± 1.7† 0.60 0.001 0. 48
Fatigue Index - RL Extension (%) -1.9 ± 33 -9.6 ± 67 9.5 ± 26 0.19 0.12 0.84
Fatigue Index - LL Extension (%) -17.6 ± 55 5.2 ± 27† -0.2 ± 47† 0.08 0.02 0.49
Fatigue Index - RL Flexion (%) -12.1 ± 84 7.9 ± 56† 17.7 ± 22† 0.37 0.08 0.53
Fatigue Index - LL Flexion (%) -48.9 ± 139 9.8 ± 53† 9.7 ± 67† 0.61 0.02 0.44
15 Repetitions at 300 deg/sec       
Peak Torque - RL Extension (kg/m) 32.6 ± 13 36.6 ± 14 36.2 ± 15 0.68 0.17 0.39
Peak Torque - LL Extension (kg/m) 31.0 ± 16 36.2 ± 15† 37.0 ± 15† 0.62 0.02 0.12
Peak Torque - RL Flexion (kg/m) 14.8 ± 11 19.0 ± 13† 19.3 ± 13† 0.76 0.02 0.61
Peak Torque - LL Flexion (kg/m) 12.7 ± 11 17.2 ± 12† 17.6 ± 11† 0.82 0.02 0. 24
Fatigue Index - RL Extension (%) 7.8 ± 43 10.8 ± 27 17.2 ± 29 0.46 0.19 0.83
Fatigue Index - LL Extension (%) 4.0 ± 48 11.3 ± 24 17.6 ± 37 0.46 0.25 0.77
Fatigue Index - RL Flexion (%) -2.0 ± 94 14.1 ± 70 17.9 ± 68† 0.52 0.36 0.82
Fatigue Index - LL Flexion (%) -20.2 ± 103 16.3 ± 89† 19.1 ± 62† 0.76 0.02 0.94
  1. Data are means ± standard deviations for time main effects. RL = right leg, LL = left leg, G = group, T = time. † Indicates p < 0.05 difference from baseline.