核心穩定性的概念起源於臨床應用的領域，而軀幹、骨盆與脊椎的穩定對人體動作的效益，使核心訓練被應用到運動領域，因而也有許多探討核心穩定性與運動表現關係的研究產生。這些研究的設計方式主要涵蓋兩種：訓練介入與相關性分析。然而核心是包含軀幹、骨盆與脊椎的複合體，影響核心穩定性的因素眾多，若未謹慎將變項做好控制，將無法辨識究竟是核心複合體中的哪一些因素對運動表現產生影響，因而難以真正瞭解核心穩定性如何與運動表現有所關聯。本文就兩種設計方式分別列舉文獻，並整理出幾點可能影響研究結果、不同研究間歧異度較大的控制因子：一、測驗項目與研究主題的關聯性；二、測驗項目所針對的族群；三、測驗項目與所探討運動表現項目間的專一性。作者建議：一、研究中採用的測驗與訓練動作盡可能在方法中描述詳細，使不同研究間可以互相參照；二、依照肌力、肌耐力、爆發力等不同肌肉特性，設計出更多樣的核心能力評估方法；三、由較單純的動作型態出發，探討核心穩定性與它們的關聯，再進階到複雜的運動動作。

The concept of core stability originated from clinical application in physical therapy. The benefit the stability of trunk, or lumbopelvic-hip complex, has on human movements, has brought this concept to the domain of sports and exercise, and thus there is research concerning the relationship between core stability and performance. Mainly, there are two approach designs: training intervention, and correlation analysis. However, the stability of the core is affected by complex factors. If not cautiously controlled, the approach might not be able to clarify the relationship. The following factors, which may affect the result and vary much between researches, were summarized: 1. The relevance between the tests and the topic; 2. The population for which the tests are suitable; 3. The specificity of the tests to the performed movements. Regarding the factors, we suggested that: 1. The adapted testing and training methods being described as precisely as possible, allowing other researches to refer to; 2. Various testing protocols being developed according to different muscular characters, such as strength, endurance, power… etc.; 3. Relationship between core stability and simple movements being investigated first, then advance to complex spor t movements.