| Summary: | In the past decade, the number of the studies conducted on the effects of resistance training on circadian rhythm of endocrine hormones is increasing exponentially. The aim of this report is to explore the current and prevailing studies in an attempt to elucidate the findings of resistance training on circadian rhythm of endocrine hormones. Analysis of the available research from 2001 until 2015 demonstrated a wide variety of methodologies and sampled populations. However, all sampled studies made use of a pre-test, post-test experimental design taking place during the day. In addition, the primary hormones assessed were testosterone and cortisol, sampled via saliva. Collectively the sampled studies demonstrated that resistance training is capable of affecting the circadian rhythm of endocrine hormone secretion. However, it must be noted that these alterations were primary following training and the alterations transient in nature, with endocrine responses returning to normal circadian rhythm ranges via natural feedback mechanisms.
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