Scholarlink

Purpose <p>Obesity is associated with increased perceived fatigue and reduced physical activity. This study tested whether a placebo ergogenic treatment could reduce perceived exertion and enhance motor performance in individuals with obesity.</p> Methods <p>Forty-four participants were randomized to a Placebo group, which received sham transcutaneous electrical stimulation paired with positive suggestions, or to a Control group. Endurance (repetitions), perceived exertion (RPE load), and the late Readiness Potential were recorded during a finger-flexion task performed to exhaustion at 60% 1-RM in two sessions separated by 30&#xa0;min of rest. Outcomes (Repetitions, RPE load, and RP amplitude) were expressed as percentage change (Δ%) from baseline to test, and group differences were analysed through one-way ANOVAs.</p> Results <p>Compared with Controls, the Placebo group exhibited smaller declines in repetitions and RPE load and a smaller increase in RP amplitude. Outcomes are in line with a reduced perceived fatigue.</p> Conclusions <p>These findings suggest that positive expectations can alleviate perceived fatigue and reduce the cortical cost of motor preparation in obesity.</p> Level of evidence <p>Randomized Experimental Trial.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Motor placebo effect in obesity: how ergogenic aids can decrease fatigue and improve motor performance

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月10日

查看全文
  • Valeria Volpino,
  • Maria Elena Navarra,
  • Federica Scarpina,
  • Alessandro Piedimonte,
  • Massimo Scacchi,
  • Laura Bianchi,
  • Alessandro Mauro,
  • Elisa Carlino

摘要

Purpose

Obesity is associated with increased perceived fatigue and reduced physical activity. This study tested whether a placebo ergogenic treatment could reduce perceived exertion and enhance motor performance in individuals with obesity.

Methods

Forty-four participants were randomized to a Placebo group, which received sham transcutaneous electrical stimulation paired with positive suggestions, or to a Control group. Endurance (repetitions), perceived exertion (RPE load), and the late Readiness Potential were recorded during a finger-flexion task performed to exhaustion at 60% 1-RM in two sessions separated by 30 min of rest. Outcomes (Repetitions, RPE load, and RP amplitude) were expressed as percentage change (Δ%) from baseline to test, and group differences were analysed through one-way ANOVAs.

Results

Compared with Controls, the Placebo group exhibited smaller declines in repetitions and RPE load and a smaller increase in RP amplitude. Outcomes are in line with a reduced perceived fatigue.

Conclusions

These findings suggest that positive expectations can alleviate perceived fatigue and reduce the cortical cost of motor preparation in obesity.

Level of evidence

Randomized Experimental Trial.