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Table 2 Comparison of indicators between the two groups before and after the intervention

From: Effects of lower limb resistance exercise on muscle strength, physical fitness, and metabolism in pre-frail elderly patients: a randomized controlled trial

Group Exercise group, n = 30 Control group, n = 30 Groups*Time Time Groups
F P F1 P1 F2 P2
Time Before After Before After       
Quadriceps femoris muscle strength (kg) 5.76 ± 0.8 8.04 ± 0.96 6.11 ± 1.15 6.04 ± 0.92 58.172 <0.001 51.373 <0.001 18.112 <0.001
6-min walking test (m) 548.04 ± 74 653.18 ± 56.79 559.68 ± 67.05 548.8 ± 63.87 22.895 <0.001 15.113 <0.001 15.260 <0.001
30-s sit-to-stand test (times) 12.87 ± 3.31 17.21 ± 3.95 13.16 ± 4.1 13.43 ± 4.22 10.961 <0.001 14.035 <0.001 4.741 0.034
8-ft “up & go” test (s) 5.80 ± 0.83 4.71 ± 0.8 5.51 ± 0.49 5.29 ± 0.67 23.777 <0.001 53.186 <0.001 0.804 0.374
Daily activity energy expenditure (kcal) 225.85 ± 38.2 405.66 ± 47.01 218.21 ± 35.96 230.03 ± 40.17 132.717 <0.001 172.723 <0.001 148.759 <0.001
Metabolic equivalent 2.33 ± 0.29 4.51 ± 0.45 2.43 ± 0.36 2.56 ± 0.5 239.985 <0.001 305.844 <0.001 125.497 <0.001