口头建议对健康个体手指 flexor 激活和力量的影响
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Updated: Jul 16, 2025
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Measurement of Spatial Stability in Precision Grip
Published on: June 4, 2020
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Kamil Zaworski1, Monika Kadłubowska1, Joanna Baj-Korpak1
1Department of Physiotherapy, John Paul II University in Biała Podlaska, Biała Podlaska, Poland.
概括
负面的口头暗示在安慰剂研究中显著降低了手指曲器的强度. 积极的或未知的信息没有产生显著的强度变化,突出显示了暗示的力量.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 运动医学 运动医学
背景情况:
- 听觉刺激深深地影响人类的感知,期望,经验和行为.
- "安慰剂效应"是一个已有充分证据的现象,可以通过外部信息来调节.
- 了解这些调制对于治疗干预和性能提升至关重要.
研究的目的:
- 为了研究口头强化对安慰剂效应的影响.
- 评估正面和负面的口头暗示对手指 flexor 肌肉力量和激活的影响.
- 用表面电肌图 (sEMG) 和手握强度测量来评估变化.
主要方法:
- 88名健康参与者接受了安慰剂 (纸带),并随机分为三个组:积极信息,消极信息或对照组.
- 使用手动动力表测量肌肉力量,并通过sEMG评估肌肉激活.
- 在干预和口头强化之前和之后立即进行测量.
主要成果:
- 负信息组显示手指曲器强度显著下降 (39.7N至37.6N,P=0.003).
- 对照组表现出强度略微,但在统计学上显著增加 (34.3N至36.4N,P=0.035).
- 在任何组中都没有观察到肌肉生物电活动 (sEMG) 的显著变化.
结论:
- 负面的口头信息,当与安慰剂配对时,可以显著减少手指 flexor 肌肉的强度.
- 这些发现强调了暗示对身体表现的强大影响,即使没有生理变化.
- 进一步的研究可以探索这种口头暗示诱导的力量调节的基础的神经生物学机制.
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