Table 3 Change in outcome variables in the three tertiles of visit 1 BW

From: Effects of exercise during the holiday season on changes in body weight, body composition and blood pressure

  Tertile I (43.3–61.4 kg) Tertile II (61.7–73.5 kg) Tertile III (75.0–121.2 kg) Total (43.3–121.2 kg)
  Female Male Total Female Male Total Female Male Total Male Female
n 46 3 49 32 17 49 22 28 50 48 100
% Exercisers 59% 4% 63%* 39% 20% 59%* 8% 26% 34% 52%* 52%*
Mean Change±s.d.            
 Change BW −0.15±0.75 −1.11±0.84 −0.21±0.78 −0.08±1.25 −0.06±0.56 −0.07±1.06 0.12±1.24 0.40±0.95 0.28±1.08 0.14±0.90 −0.07±1.04
 Change BF% −0.35±0.89 −0.51±0.25 −0.36±0.87* 0.11±0.95 −0.23±0.42 0.01±0.82a 0.08±0.68 0.58±1.40 0.36±1.16a 0.23±1.17 −0.11±0.89
 Change BMI −0.09±0.80 −1.09±0.84 −0.16±0.83 −0.08±1.31 −0.07±0.55 −0.07±1.10 0.14±1.26 0.29±0.88 0.23±1.03 0.08±0.80 −0.04±1.09
 Change SBP 0.01±1.09 −0.35±1.06 −0 02±1.08 −0.26±0.92 −0.19±0.90 −0.24±0.90 0.28±100 0.23±0.95 0.26±0.96 0.05±0.94 −0.02±1.03
 Change DBP −0.09±1.18 0.11±0.91 −0.07±1.16 −0.07±0.91 0.02±0.95 −0.04±0.91 0.24±0.81 0.01±1.00 0.11±0.92 0.02±0.96 −0.01±1.02
 Change HR 0.16±0.90 −0.38±2.16 0.13±0.99 0.04±0.94 0.08±1.46 0.05±1.13 −0.24±0.39 −0.12±1.11 −0.18±0.86 −0.07±1.28 0.03±0.84
  1. Abbreviations: BF%, body fat percentage; BMI, body mass index; BW, body weight; DBP, diastolic blood pressure; HR, heart rate; SBP, systolic blood pressure.
  2. BW tertile was a significant main effect for change in BF% (P=0.023), but neither exercise nor gender were significant. No other variables showed significant main effects or interaction effects.
  3. Bold values indicated by ‘*’ denote significantly different proportion of exercisers to non-exercisers in that tertile compared with the US national average, P<0.001. Values presented as means±s.d.
  4. A three-way analysis of variance (exercise × gender × BW tertile), and χ2 test was done on the proportion of exerciser to non-exerciser ratio in each BW tertile compared with the national average.
  5. aDenotes significant differences in BF% between the BW tertiles at P<0.05.