健美碳水化合物加载协议对人类学的影响:随机交叉试验的初步发现
Kai A Homer1, Ivan Jukic2, Matt R Cross1
1Sports Performance Research Institute New Zealand (SPRINZ), Auckland University of Technology, Auckland, New Zealand.
Nutrition (Burbank, Los Angeles County, Calif.)
|August 18, 2024
概括
碳水化合物 (CHO) 加载协议可以增加肌肉大小和定义. 然而,个人的反应有所不同,这表明个性化竞赛前测试对于最佳结果至关重要.
科学领域:
- 运动营养 运动营养
- 运动生理学 运动生理学
- 健美科学 健美科学 健美科学
背景情况:
- 健美运动员通常使用碳水化合物 (CHO) 加载协议来提高比赛前的肌肉大小和定义.
- 具体的健美CHO加载协议对人体测量措施的有效性需要进一步调查.
研究的目的:
- 为了评估一个健美碳水化合物 (CHO) 加载协议对人体测量措施的影响.
- 为了比较CHO加载与安慰剂对体重,皮厚度和肌肉厚度的影响.
主要方法:
- 一个随机交叉试验,涉及四名饮食男性,身体脂肪非常低,接受抵抗训练 (RT).
- 参与者遵循了标准化RT和饮食的消耗阶段,随后是使用安慰剂 (PLA) 或9g/kg体重 (BM) CHO饮料的后加载阶段.
- 包括人体质量 (BM),皮厚度 (SF) 和超声波肌肉厚度 (MT) 在内的人类测量测量在基线,消耗后和负载后进行.
主要成果:
- 在消耗后,体质 (BM),皮厚度 (SF) 和肌肉厚度 (MT) 在这两种情况下都普遍下降.
- 碳水化合物 (CHO) 负载显著增加BM (+0.8%),SF (+1.1%) 和MT (+2.9%) 从后耗尽,而安慰剂没有.
- 与基线相比,负载后的变化在CHO负载 (BM: +0.3%,SF: -2.3%,MT: +2.1%) 时比在安慰剂 (BM: -0.9%,SF: -0.5%,MT: -0.8%) 时更大.
结论:
- 组级的变化表明,与安慰剂相比,碳水化合物 (CHO) 负载有利于改善体质,皮厚度和肌肉厚度.
- 对CHO加载协议的个体反应显示出显著的变化.
- 教练和竞争者应该考虑通过测试和视觉评估来个性化竞争前协议,因为可能存在测量错误和生物波动.
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