Changes in hunger (A–D) and fullness (E–H) sensations compared with skeletal muscle 18F-FDG uptake. (A, B) All muscles, (C, D) deep muscles, (E, F) cervical muscles, (G, H) cold-sensitive muscles. Dashed lines represent high–muscle 18F-FDG group (n = 24), and solid lines represent low–muscle 18F-FDG group (n = 29). The high and low skeletal muscle 18F-FDG uptake groups are the highest and lowest 18F-FDG uptake tertiles. The P values are for 2-factor (tertile and time elapsed since meal consumption) mixed ANOVAs. 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. VAS, visual analog scale; 18F-FDG, 18F-fluordeoxyglucose.