TABLE 1.

Characteristics of the study participants¹

		All		Men		Women
Age, y	102	22.08 ± 2.17	37	22.20 ± 2.19	65	22.01 ± 2.17
BMI, kg/m2	102	25.05 ± 4.98	37	27.40 ± 5.77	65	23.72 ± 3.93
Lean mass, kg	96	41.74 ± 9.82	35	52.17 ± 7.19	61	35.75 ± 4.82
Fat mass, kg	96	25.28 ± 9.45	35	26.17 ± 11.68	61	24.77 ± 7.96
Fat mass, %	96	35.90 ± 7.76	35	30.95 ± 7.85	61	38.74 ± 6.15
LMI, kg/m2	96	14.66 ± 2.49	35	17.12 ± 2.12	61	13.25 ± 1.33
FMI, kg/m2	96	8.95 ± 3.16	35	8.58 ± 3.80	61	9.16 ± 2.74
VAT, g	96	343.69 ± 183.44	35	434.39 ± 187.07	61	291.65 ± 160.92
BAT volume, mL	102	72.44 ± 60.91	37	89.26 ± 71.15	65	62.87 ± 52.44
BAT metabolic activity	102	356.28 ± 350.04	37	389.75 ± 371.96	65	337.23 ± 338.42
BAT SUVmean	102	3.85 ± 1.91	37	3.50 ± 1.41	65	4.05 ± 2.13
BAT SUVpeak	102	11.62 ± 8.43	37	11.02 ± 7.77	65	11.96 ± 8.83
All muscles SUVpeak	102	0.80 ± 0.20	37	0.80 ± 0.17	65	0.80 ± 0.21
Deep muscles SUVpeak	102	1.05 ± 0.29	37	1.05 ± 0.27	65	1.05 ± 0.31
Cervical muscles SUVpeak	102	1.07 ± 0.31	37	1.05 ± 0.27	65	1.07 ± 0.33
Cold-sensitive muscles SUVpeak	102	0.90 ± 0.29	37	0.87 ± 0.25	65	0.92 ± 0.31
Descending aorta SUVpeak	102	1.54 ± 0.34	37	1.65 ± 0.37	65	1.48 ± 0.31
Ad libitum energy intake, kcal	102	880.71 ± 380.14	37	1136.10 ± 423.08	65	735.34 ± 261.13
Ad libitum meal:rate of eating, kcal/min	100	76.91 ± 39.72	37	105.12 ± 47.12	63	60.34 ± 21.83
Habitual energy intake, kcal/d	102	1856.41 ± 453.73	37	2025.99 ± 4732.29	65	1759.87 ± 415.68

¹Values are n or mean ± SD. All muscles: paracervical, sternocleidomastoid, scalene, longus colli, trapezius, parathoracic, supraspinatus, subscapular, deltoid, pectoralis major, and triceps brachii. Deep muscles: paracervical, scalene, longus colli, parathoracic, and subscapular. Cervical muscles: paracervical, sternocleidomastoid, scalene, and longus colli. Cold-sensitive muscles: sternocleidomastoid, scalene, longus colli, and pectoralis major. BAT, brown adipose tissue; FMI, fat mass index; LMI, lean mass index; SUV, standardized uptake value; VAT, visceral adipose tissue.