Food and Nutrition Department, Faculty of Pharmaceutical Sciences, Sao Paulo State University (UNESP), Araraquara, Brazil.
Maturitas. 2010 Dec;67(4):343-7. doi: 10.1016/j.maturitas.2010.07.009. Epub 2010 Aug 21.
This study investigated how consumption of orange juice associated with aerobic training affected serum lipids and physical characteristics of overweight, middle-aged women.
The experimental group consisted of 13 women who consumed 500 mL/d of orange juice and did 1h aerobic training 3 times a week for 3 months. The control group consisted of another 13 women who did the same aerobic training program but did not consume orange juice.
At the end of the experiment, the control group lost an average of 15% of fat mass (P<0.05) and 2.5% of weight (P<0.05), whereas the experimental group lost 11% of fat mass and 1.2% of weight (P<0.05). Consumption of orange juice by the experimental group was associated with increased dietary intake of vitamin C and folate by 126% and 61% respectively. Serum LDL-C decreased 15% (P<0.05) and HDL-C increased 18% (P<0.05) in the experimental group, but no significant change was observed in the control group. Both groups improved the anaerobic threshold by 20% (P<0.05), but blood lactate concentration decreased 27% in the experimental group compared to the 17% control group, suggesting that experimental group has less muscle fatigue and better response to training.
The consumption of 500 mL/d of orange juice associated with aerobic training in overweight women decreased cardiovascular disease risk by reducing LDL-C levels and increasing HDL-C levels. This association also decreased blood lactate concentration and increased anaerobic threshold, showing some improvement in the physical performance.
本研究旨在探讨橙汁摄入与有氧运动相结合对超重中年女性的血清脂质和身体特征的影响。
实验组由 13 名女性组成，她们每天饮用 500 毫升橙汁，并每周进行 3 次、每次 1 小时的有氧运动，持续 3 个月。对照组由另外 13 名女性组成，她们进行相同的有氧运动计划，但不饮用橙汁。
实验结束时，对照组平均减少了 15%的脂肪量（P<0.05）和 2.5%的体重（P<0.05），而实验组减少了 11%的脂肪量和 1.2%的体重（P<0.05）。实验组橙汁的摄入与维生素 C 和叶酸的膳食摄入量分别增加了 126%和 61%有关。实验组的 LDL-C 降低了 15%（P<0.05），HDL-C 增加了 18%（P<0.05），而对照组则没有显著变化。两组的无氧阈都提高了 20%（P<0.05），但实验组的血乳酸浓度比对照组降低了 27%，表明实验组肌肉疲劳程度较低，对训练的反应更好。
超重女性每天饮用 500 毫升橙汁并结合有氧运动可降低 LDL-C 水平，增加 HDL-C 水平，从而降低心血管疾病风险。这种结合还降低了血乳酸浓度，提高了无氧阈，表明身体机能有一定改善。
