Table 7. Comparisons for the Means of Body Dimensions Between Without-Gear and In-Gear Conditions for the U.S. Firefighter Population (weighted; casewise deletion of missing data was used in the analysis).

	Measured Without Gear				Measured in Gear
Dimension	Sum of W	M	SE of M	SD	Sum of W	M	SE of M	SD	Difference in Mean	t
4a. Men
Bideltoid width, sitting	847	574	1.8	52	847	710	1.9	54	136 mm*	83.6
Body weight (kg)	847	92.9	0.5	14.7	847	104.8	0.5	14.9	11.8 kg*	192.2
Chest depth, standing	847	281	0.9	27	847	363	1.2	35	82 mm*	79.9
Chest width, standing	847	358	1.0	28	847	398	1.1	33	40 mm*	41.6
Elbow–wrist length, sitting	847	299	0.5	15	847	302	0.6	17	3 mm*	7.5
Foot breadth, standing	847	104	0.2	6	847	120	0.2	5	16 mm*	75.5
Foot length, standing	847	270	0.4	13	847	316	0.6	17	46 mm*	106.6
Grip strength, sitting (kg)	847	43.90	0.3	8.8	847	34.1	0.3	7.4	−9.8 kg*	−40.0
Hip breadth, sitting	847	437	1.2	34	847	597	1.7	50	160 mm*	95.4
4b. Women
Bideltoid width, sitting	85	489	5.2	48	85	644	4.8	45	155 mm*	33.5
Body weight (kg)	85	72.1	1.4	13.1	85	82.6	1.5	13.5	10.5 kg*	74.8
Chest depth, standing	85	262	3.4	32	85	344	3.8	35	82 mm*	25.8
Chest width, standing	85	313	3.1	29	85	356	3.2	30	43 mm*	16.1
Elbow–wrist length, sitting	85	275	1.5	14	85	280	1.8	17	5 mm*	3.7
Foot breadth, standing	85	95	0.6	5	85	113	0.5	5	18 mm*	30.6
Foot length, standing	85	247	1.4	13	85	289	1.6	15	42 mm*	36.2
Grip strength, sitting (kg)	85	29.8	0.7	6.3	85	21.2	0.6	5.8	−8.6 kg*	−15.2
Hip breadth, sitting	85	425	4.2	39	85	576	5.0	46	151mm*	30.6

Note.Unit: mm unless otherwise specified. Sum of W: sum of weights.

^*Denotes statistical significance where p < .05/9 = .0056 (two-tailed test), which is equivalent to t.₀₅(9, 847) = ±2.83 for men and t.₀₅(9, 85) = ±2.84 for women for nine paired tests.