Abdominal aerobic endurance exercise reveals spot reduction exists: A randomized controlled trial

AbstractThe existence of spot reduction, exercise-induced local body fat reduction, has been debated for half a century. Although the evidence is equivocal, no study has applied aerobic endurance training closely matching interventions for energy expenditure. Sixteen overweight (BMI: 29.8  ± 3.3(SD) kg m−2) males (43  ± 9 years) were randomized to: (1) abdominal endurance exercise (AG), combining treadmill running at 70% HRmax (27  min) with 4 × 4 min (30%–40% maximal strength, 1RM) of torso rotation and abdominal crunches (57 min), 4 days⋅week−1 for 10  weeks; or (2) control group (CG) performing only treadmill running (45 min) at 70% HRmax. Local fat mass was measured by dual-energy x-ray absorptiometry (DEXA), along with 1RM, and pulmonary oxygen uptake (to control energy expenditure during training). Trunk fat mass decreased more (697  g, 3%,p <  0.05) in AG (1170 ± 1093 g, 7%;p <  0.05) than in CG (no change). Total fat mass (AG: 1705 ± 1179 g, 6%; CG: 1134 ± 731 g, 5%; bothp <  0.01) and body weight (AG: 1.2 ± 1.2 kg, 1%,p <  0.05; CG: 2.3 ± 0.9 kg, 3%,p <  0.01) decreased similarly in AG/CG. Torso rotation (AG: 32 ± 16 kg, 39%,p <  0.01; CG: no change) and abdominal crunch 1RM (AG: 35 ± 16 kg, 36%,p <  0.01; CG: 13 ± 12 kg, 17%,p <  0.05) increased more (p <  0.05/0.01) in AG than CG. Abdominal endurance exercis...
Source: Physiological Reports - Category: Physiology Authors: Tags: ORIGINAL ARTICLE Source Type: research