Table 5.
BMI Ranking by Self-reported Characteristics of CrossFit™ Participants
| Descriptive statistics | ||||||||
|---|---|---|---|---|---|---|---|---|
| Sample characteristics | BMI ranking | |||||||
| Total N | Mean [SD] | Total N | Mean [SD] | d.f | H | p | ES | |
| Age | 1806 | 2.53 [0.90] | 1806 | 2.74 [0.76] | 5 | 15.01 | 0.01a | 0.01 |
| Participant’s ethnicity | 1806 | 1.11 [0.51] | 1806 | 2.74 [0.76] | 3 | 0.56 | 0.91 | 0.00 |
| Exercise experience | 1796 | 4.26 [1.77] | 1806 | 2.74 [0.76] | 5 | 0.99 | 0.96 | 0.00 |
| Minutes of exercise per wk | 1796 | 3.38 [3.38] | 1806 | 2.74 [0.76] | 4 | 15.99 | 0.003a | 0.01 |
| CF training experience [yrs] | 1784 | 2.93 [1.62] | 1806 | 2.74 [0.76] | 5 | 5.31 | 0.38 | 0.00 |
| CF classes per wk | 1795 | 3.84 [1.04] | 1806 | 2.74 [0.76] | 4 | 7.38 | 0.12 | 0.00 |
BMI, body mass index; ES, effect size based on epsilon squared for Kruskal Wallis H test; n, number; SD, standard deviation; d.f., degrees of freedom; H, Kruskal–Wallis test; p, Kruskal–Wallis test probability value, CF, CrossFit; wk, week; yrs, years
aSuperscript indicates significant differences between groups. Statistical significance: p < 0.05