Sugimoto Keiichiro, Takeuchi Hiroaki, Nakagawa Kazuya, Matsuoka Yasuhiro
Research and Development Center, Nagaoka Co. Ltd., 1-3-30, Itsukaichi, Ibaraki, Osaka 567-0005, Japan.
Department of Food and Health Sciences, Jissen Women's University, 4-1-1 Osakaue, Hino, Tokyo 191-8510, Japan.
Evid Based Complement Alternat Med. 2018 Oct 8;2018:3207623. doi: 10.1155/2018/3207623. eCollection 2018.
Ginger is known to warm the body. Therefore, we conducted a placebo-controlled crossover trial to investigate the hyperthermic effect of a palatable ginger-containing beverage in healthy women with cold-sensitive extremities. Six women drank 280 mL of 0.07% ginger extract-containing or placebo beverage in a temperature-controlled room (21°C). Their palm temperatures were measured as measure of surface body temperature using a thermographic camera before intake and every 10 min after intake for 60 min. Palm temperature increased immediately following intake of the ginger and placebo beverages. However, palm temperature following intake of the ginger beverage increased for 20 min, while palm temperature following placebo intake decreased again after 10 min. The increased palm temperature following ginger intake was maintained significantly longer than after placebo intake ( < 0.05). In response to a questionnaire, some subjects answered that their increased body temperature was maintained after drinking the ginger beverage. Ginger extract-containing beverage may thus improve cold sensitivity.
众所周知，生姜能使身体暖和起来。因此，我们进行了一项安慰剂对照交叉试验，以研究一种美味的含生姜饮料对四肢对寒冷敏感的健康女性的升温效果。六名女性在温度可控的房间（21°C）中饮用了280毫升含0.07%生姜提取物的饮料或安慰剂饮料。在饮用前以及饮用后每隔10分钟直至60分钟，使用热成像相机测量她们的手掌温度，以此作为体表温度的指标。饮用生姜饮料和安慰剂饮料后，手掌温度立即升高。然而，饮用生姜饮料后手掌温度升高持续了20分钟，而饮用安慰剂后手掌温度在10分钟后又再次下降。饮用生姜后手掌温度升高的持续时间显著长于饮用安慰剂后（<0.05）。在一份问卷调查中，一些受试者回答说饮用生姜饮料后她们体温升高的状态得以维持。因此，含生姜提取物的饮料可能会改善对寒冷的敏感性。
