Introduction: The diaphragm is the main muscle for respiration, described as fundamental to muscular chain methods, but it is not entirely clear how it can influence the physiotherapeutic approach of global muscular chain methods. Purpose: To highlight the influence of the diaphragm muscle on the physiotherapeutic approach of global muscular chain methods. Material and methods: We carried out a systematic mini-review on standard-of-excellence scientific literature databases, using the following keywords: "diaphragm muscle", “muscular chains”, “Mézières method”, “Busquet method”, “GPR method”, and “GDS method” in Portuguese, Spanish and English, considering articles from the last 10 years. Results: No articles that directly related the keywords “diaphragm muscle” with the muscular chain methods adopted in the present study were found. Isolating the keywords, we found different results in the search carried out in the databases according to the keyword used. Conclusion: The influence of the diaphragm muscle on the performance of muscular chain methods is based on books and each author’s clinical experiences. There are no articles in databases of scientific relevance that investigated the direct relationship between the diaphragm muscle and the muscular chain methods.