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Table 1 Personal and biomechanical data for those with and without PFP (n = 76)

From: Interaction of Biomechanical, Anthropometric, and Demographic Factors Associated with Patellofemoral Pain in Rearfoot Strike Runners: A Classification and Regression Tree Approach

Variables

Total

(N = 76)

PFP

(N = 38)

CON

(N = 38)

Sex. %

   

 Male

 Female

42 (55.3)

34 (44.7)

24 (63.2)

14 (36.8)

18 (47.4)

20 (52.6)

Age, y

33 (16)

34 (15)

31 (19)

Weight, kg

65.6 (15.7)

65.1 (14)

67.5 (17.5)

Height, cm

172.1 (18.4)

173.2 (8.4)

169.6 (21.4)

BMI, kg/m2

22.3 (2.6)

22.3 (2.3)

22.2 (2.3)

VALR, BW/s

60.3 (25.5)

67.8 (21.3)

55.7 (23.1)

VILR, BW/s

69.4 (30.9)

77.2 (22.9)

65.8 (25.8)

BGRFI, BW*s

0.014 (0.002)

0.014 (0.002)

0.015 (0.002)

Contact Time, s

0.26 (0.02)

0.27 (0.02)

0.26 (0.02)

Step rate, steps/min

165.2 (9.6)

167.0 (8.9)

165.6 (10.4)

  1. aBGRFI = braking ground reaction force impulse; BMI = body mass index; CON = controls; PFP = patellofemoral pain; VALR = vertical average loading rate; VILR = vertical instantaneous loading rate
  2. bContinuous variables = mean (SD) or median (IQR)
  3. cCategorical variables = n (%)