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观察小鼠骨骼肌乳酸代谢在模拟高原训练返回平原后的变化趋势,对高原训练影响机体运动能力的机理进行初步研究。结果显示:模拟高原训练(2300±50m)4周后小鼠骨骼肌乳酸代谢明显改善,表现在以相同强度运动时,高原的乳酸值(BLa & MLa)明显高于平原,以及高原训练后乳酸浓度下降,逐渐接近平原安静值。推测原因可能是(1)乳酸的生成延迟;(2)乳酸的消除能力增强;(3)缓冲系统功能提高。提示高原训练不仅提高了骨骼肌有氧代谢潜能,而且也发展了无氧代谢能力。
The changes of lactate metabolism in mouse skeletal muscle after simulated plateau training returning to the plain were observed, and the mechanism of plateau training affecting body movement ability was studied. The results showed that lactate metabolism in skeletal muscle of mice improved significantly after simulating plateau training (2300 ± 50m) for 4 weeks, which showed that at the same intensity exercise, the lactic acid value (BLa & MLa) in plateau was significantly higher than that in plain and lactic acid Concentration decreased gradually approaching the quiet value of the plain. Speculated that the reasons may be (1) the delay in the formation of lactic acid; (2) the ability to eliminate lactic acid; (3) buffer system function to improve. Prompted altitude training not only increased aerobic metabolic potential of skeletal muscle, but also developed anaerobic metabolism.