营销话术证据 A · 指南级
局部减脂 (练腹部减肚子)
真相
Vispute 2011 + Kostek 2007: 局部训练不改变区域脂肪损耗；脂解由全身激素信号驱动。
机制速览
HIIT (High-Intensity Interval Training) = 短时高强度 (≥85% maxHR) 加上短时低强度恢复, 反复循环。
来源（3）
- Milanović, Z., Sporiš, G., & Weston, M. (2015). Effectiveness of high-intensity interval training (HIT) and continuous endurance training for VO2max improvements: A systematic review and meta-analysis of controlled trials. Sports Medicine, 45(10), 1469-1481. HIIT ≈ continuous moderate-intensity for VO2max, at ~30% the training time.
- Gibala, M. J., Little, J. P., MacDonald, M. J., & Hawley, J. A. (2012). Physiological adaptations to low-volume, high-intensity interval training in health and disease. The Journal of Physiology, 590(5), 1077-1084. Mechanistic review of HIIT-induced mitochondrial and cardiovascular adaptations.
- Achten, J., & Jeukendrup, A. E. (2003). Maximal fat oxidation during exercise in trained men. International Journal of Sports Medicine, 24(8), 603-608. Max fat-oxidation occurs around 59-64% VO2max; above that the absolute fat-oxidation rate falls even as relative % rises — the empirical basis for debunking the 'fat-burning zone' marketing.