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Table 4 Exercise performance related data for the diet and supplemented groups

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 Group 0 Week 10 14 p-value
Peak VO2 HC-GCM 19.4 ± 3 19.9 ± 4 20.5 ± 3† D = 0.85
(ml/kg/min) HC-P 18.3 ± 5 18.5 ± 6 19.6 ± 4† S = 0.20
  HP-GCM 20.2 ± 4 21.4 ± 4 21.9 ± 3†* T = 0.05
  HP-P 18.7 ± 4 18.8 ± 2 16.9 ± 3†* T × D = 0.03
  HC 18.8 ± 4 19.1 ± 5 20.0 ± 4† T × S = 0.008
  HP 19.8 ± 4 20.6 ± 4†* 20.3 ± 4† T × D × S = 0.003
  GCM 19.9 ± 3 20.8 ± 4†* 21.3 ± 3†*  
  P 18.4 ± 5 18.6 ± 5 18.8 ± 4  
  Mean 19.2 ± 4 19.8 ± 4 20.1 ± 4†  
Bench Press HC-GCM 26.9 ± 5 29.1 ± 8 29.8 ± 8 D = 0.57
1RM (kg) HC-P 27.0 ± 7 28.2 ± 6 29.5 ± 6 S = 0.19
  HP-GCM 29.8 ± 6 33.8 ± 7 34.6 ± 6 T = 0.001
  HP-P 24.4 ± 2 28.4 ± 3 27.8 ± 5 T × D = 0.18q
  HC 27.0 ± 6 28.7 ± 7 29.7 ± 7 T × S = 0.57
  HP 28.1 ± 5 32.1 ± 6 32.5 ± 6 T × D × S = 0.75
  GCM 28.5 ± 6 31.8 ± 7 32.5 ± 7  
  P 26.2 ± 6 28.7 ± 7 29.0 ± 6  
  Mean 27.5 ± 6 30.2 ± 6† 30.9 ± 7†  
Upper Body Endurance (kg) HC-GCM 206 ± 52 269 ± 121 245 ± 120 D = 0.81
  HC-P 164 ± 88 175 ± 109 198 ± 142 S = 0.02
  HP-GCM 242 ± 81 299 ± 128 278 ± 116 T = 0.04q
  HP-P 157 ± 22 179 ± 34 153 ± 26 T × D = 0.59
  HC 182 ± 75 216 ± 120 219 ± 131 T × S = 0.17q
  HP 216 ± 66 262 ± 120 240 ± 113 T × D × S = 0.64
  GCM 226 ± 59 286 ± 122 264 ± 115  
  P 162 ± 73 176 ± 90 184 ± 119  
  Mean 197 ± 72 237 ± 120† 228 ± 121  
  1. Data are means ± standard deviations. HC = high carbohydrate, HP = high protein, GCM = glucosamine/chondroitin/MSM, P = placebo, HR = heart rate, SBP = systolic blood pressure, DBP = diastolic blood pressure, VO2 = oxygen uptake, 1 RM = one repetition maximum, D = diet, S = supplement, T = time, q = quadratic alpha level. † Indicates p < 0.05 difference from baseline. * represents p < 0.05 difference between groups.