由於政府週休二日的政策實施及高品質生活的被重視，再加上民眾對於健康重要性概念的提昇，於是參與休閒的人口有大幅顯著的激增，由於市場需求的熱絡，所以促使業者大量投資於健康休閒產業，業者如何與員工及會員建立良好互信關係，又如何利用建全的企業診斷理論，來維持永續經營的事業，是值得研究及重要的議題。
　　研究者收集公司的相關資料，再以策略理論來分析，例如市場定位、企業組織系統、各部門對策評估矩陣分析和公司的現況設備等，希望透過診斷過程、查覺異常警訊，提醒企業公司及時進行妥善的規劃與對策，避免企業危機的發生，和預防不必要的人力損失與浪費，企業危機向來是經營管理者及相關的企業學者所重視、及關心研究的議題，因此研究者希望透過企業診斷策略，針對各項構面找出危機點與優勢點加以分析並擬定對策方案。
　　企業診斷的部驟大致可分為預備診斷階段，需求確認階段，正式診斷階段，問題分析與診斷總結，研究者以台中市永豐棧生活會館為案例，採用SWOT分析，PORTOR分析，五種競爭力分析和企業理論分析等來進行診斷。
　　本研究結論希望可以提供學術界、健康休閒產業界及經營管理者作為相關研究或決策時的參考方針。

ABSTRACT
　　With emphasis on bettering quality of life, a surge in public awareness towards the benefits of improving and maintaining physical fitness has vastly increased island wide business investment into the Health Club industry. While many of these investments benefit short term, maintaining profitability long term largely depends on the Health clubs ability to recognize and utilize sound business practices. Equally important is the ability of Health Clubs management to cultivate and promote the health industry while maintaining lasting relationships with members and staff alike.
The purpose of this study is to analyze and understand effective management practices of a successful health club. This study diagnosed management concepts and procedures of the Mandara Life Club in Taichung Taiwan in order to determine strengths and weaknesses of the business.
The author examined company information related to market position, organizational system, human resources and club facilities in order to recognize alarms and abnormalities to remind the management to take correct countermeasures in time and, in turn, avert crises and prevent unnecessary loses. Business crises are often the focus and concern of business management and related scholars, therefore the author hopes to determine, through business diagnosis, crucial steps necessary to identify critical issues.

　　Methods used for business diagnoses are normally classified into four categories, i.e., preparation diagnosis steps, needs diagnosis step, formal diagnosis step and questions analysis with diagnosis conclusion. Categories used include SWOT analysis, PORTER analysis, Five competitive method and Strategy Practice analysis to diagnose the Landis Health Club facility.

　　The conclusions yielded in the present study function as handy reference to academics, fitness industry professionals and management who are interested in operating functional and profitable business.