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Table 2 Calorie intake, physical activity, and resting energy expenditure throughout the study

From: Dietary n-3-polyunsaturated fatty acids and energy balance in overweight or moderately obese men and women: a randomized controlled trial

 

Lead-in period (2 weeks)

Isoenergetic period (2 weeks)

Ad libitum period (12 weeks)

Friedman tests

Physical activity (MET-h/d)*:

Control group (n = 13)

38.2 (19.9)

38.6 (22.7)

37.4 (21.7)

χ2(5) = 6.156, p = 0.291

n-3-PUFA3 group (n = 13)

54.8 (29.9)

62.0 (29.9)

57.5 (29.6)

χ2(5) = 7.313, p = 0.198

    

RM-ANOVA†

    

Time

Time × Group

Calorie intake (MJ/d):

Control group (n = 13)

10.9 (1.5)

10.9 (1.3)

10.2 (1.9)

F(1.1,26.4) = 2.994,

F(1.1,26.4) = 0.703,

n-3-PUFA group (n = 13)‡

11.0 (2.2)

11.1 (2.0)

10.7 (2.5)

p = 0.092

p = 0.555

 

CRC 1 §

CRC 2

CRC 3

  

Resting energy expenditure (MJ/d):

Control group (n = 12)

6.74 (0.89)

6.41 (1.10)

6.41 (0.79)

F(2,46) = 0.313,

F(2,46) = 0.703,

n-3-PUFA group (n = 13)

6.53 (1.23)

6.59 (1.51)

6.57 (1.39)

p = 0.733

p = 0.500

Resting energy expenditure (kJ/d/kg fat free body mass ||):

Control group (n = 12)

134 (15)

-

132 (13)

F(1,23) = 0.002,

F(1,23) = 0.315,

n-3-PUFA group (n = 13)

133 (21)

-

135 (14)

p = 0.961

p = 0.580

Respiratory quotient:

Control group (n = 12)

0.86 (0.05)

0.87 (0.05)

0.86 (0.05)

F(2,46) = 0.096,

F(2,46) = 1.091,

n-3-PUFA group (n = 13)

0.85 (0.03)

0.84 (0.05)

0.85 (0.05)

p = 0.908

p = 0.344

  1. All data are means (SD). * MET-h, metabolic equivalent task-hours. † RM-ANOVA, repeated-measures analysis of variance. ‡ PUFA, polyunsaturated fatty acids. §CRC, Clinical Research Center. || Fat-free body mass data from dual-energy x-ray absorptiometry-scans were available only for CRC visits 1 and 3.