The hypothesis of this study is that weight-related behaviors such as weight perception and weight control efforts may be related to health indicators such as grip strength as an indicator of muscle strength. This cross-sectional study aimed to prove this hypothesis by assessment of the associations of perceived weight status, weight misperceptions, and weight control efforts with grip strength. A questionnaire and measurements were used to assess the perceived weight status, weight control efforts, weight control methods, weight misperceptions, grip strength (sarcopenic vs normal), and confounding factors (measured body mass index, sociodemographic characteristics, concurrent chronic diseases, high sensitivity C-reactive protein, depressive mood, health-related quality of life, health behaviors, and protein intake) among 12,727 adults (men, 43.1%; 51.0 ± 16.6 years old) using the 2015 to 2017 Korea National Health and Nutrition Examination Survey. In fully adjusted models, the odds of sarcopenic grip strength tended to increase with thinner weight perceptions (P for trend <.001). Sarcopenic grip strength was inversely associated with accurate estimation or overestimation of weight (adjusted odds ratio [aOR] 0.64-0.68) and weight loss/maintenance efforts (aOR 0.68-0.73) compared with underestimation of weight and nonweight control efforts. These findings were consistent across sex and weight status, and were found among participants aged 60 years or older but not less than 60 years. In conclusion, this study supports the research hypothesis that the perception of one's own weight, the accuracy of the perceived weight, and the weight control efforts may be related to weak handgrip strength.

本研究的假设是，体重感知和体重控制等与体重相关的行为可能与作为肌肉力量指标的握力等健康指标有关。这项横断面研究旨在通过评估感知的体重状态、体重误解和体重控制努力与握力之间的关联来证明这一假设。问卷和测量用于评估感知的体重状态、体重控制努力、体重控制方法、体重误解、握力（肌肉减少症与正常）和混杂因素（测量的体重指数、社会人口学特征、并发慢性病、高敏感性12,727 名成人（男性，43.1%；51.0 ± 16.6 岁）使用 2015 年至 2017 年韩国国家健康和营养检查调查。在完全调整的模型中，肌肉减少的握力的几率随着体重感知的减少而增加（趋势的P <.001）。与低估体重和非体重控制努力相比，肌肉减少症握力与准确估计或高估体重（调整优势比 [aOR] 0.64-0.68）和体重减轻/维持努力（aOR 0.68-0.73）呈负相关。这些发现在性别和体重状况方面是一致的，并且在 60 岁或 60 岁以上但不少于 60 岁的参与者中发现。综上所述，本研究支持了一个研究假设，即对自身体重的感知、感知重量的准确性以及体重控制力度可能与握力较弱有关。