在加拿大跨越30天4300公里的骑行期间,基于植物的饮食的骑自行车者的能量平衡:两个案例研究
Sarah A Purcell1,2,3, Edward L Melanson4,5, Seth A Creasy4,6
1Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.
Physiological reports
|November 3, 2025
概括
基于植物的饮食的超耐力骑自行车者需要大量的能量摄入来维持表现. 这项研究发现,在30天的骑行过程中,两名骑自行车的人的能量需求高,摄入量增加.
科学领域:
- 运动科学 运动科学 运动科学
- 营养生理学 营养生理学
- 人类的能量学
背景情况:
- 超耐力运动和植物性饮食日益流行,需要了解运动员的能量.
- 关于极端耐力赛事中的植物运动员能量平衡的数据有限.
研究的目的:
- 在30天的跨加拿大自行车活动中,检查两名坚持植物性饮食的休自行车手的能量平衡.
- 评估超耐力运动对总能耗 (TEE),饮食摄入量和身体组成的影响.
主要方法:
- 整个房间间的间接热量计用于休息能量消耗 (REE).
- 双重标记的水 (DLW) 用于总能耗 (TEE) 评估.
- 乳稀释用于身体成分分析和通过食物秤,记录和照片记录饮食摄入量.
主要成果:
- 骑自行车的人每天有相当长的距离,平均每天154.8公里,在骑行早期,每天118.2公里.
- 两个骑自行车的人都大幅增加了能量摄入量,蛋白质摄入量超过2.3g/kg/天.
- 总能耗 (TEE) 在女性骑自行车者中增加,但在男性骑自行车者中保持稳定,由体力活动能耗 (PAEE) 驱动.
结论:
- 超耐力骑自行车带来了相当大的能量需求,需要增加热量和蛋白质摄入量.
- 以植物为基础的饮食的运动员可能需要特定的营养策略来满足极端耐力赛事的高能量需求.
- 身体构成显示出最小的变化,男性骑自行车者经历了脂肪质量损失和无脂肪质量增加.
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