Fasting and Performance: How Ramadan Affects Athletes' Hydration and Sleep

Ramadan, the holy month of fasting in Islam, presents a unique challenge for many athletes. No food, no drink from sunrise to sunset – how does this affect hydration and sleep, two central pillars of athletic performance? A recent study titled Assessment of Hydration Status and Sleep in Athletes During Ramadan Month by Trabelsi K, Romdhani M, Morillas Pedreno JJ, Bertrand C, Jahrami H, and Chamari K, published in La Tunisie medicale, provides fascinating insights. But does it deliver on its promise? I have scrutinized the study, dissected its methodology, and analyzed the results from the perspective of Jürg Hösli's psychophysiological interaction model. Let's uncover the truth behind the numbers together and clarify what this means for you as an athlete. (Source: PubMed)

1. Cui Bono? The Trail of Money and Interests

First, the question that must always come first: Who is behind this study, and what interests might be at play? The authors – Trabelsi and colleagues – are active in sports science and medicine, often focusing on Muslim athletes and cultural contexts. Funding information is not apparent in the abstract, which raises transparency questions. There are no obvious connections to industry (e.g., supplement manufacturers), but the cultural context of Ramadan could influence the interpretation of the results. Studies on this topic often aim to develop strategies for practicing Muslims – a legitimate concern, but one that could lead to a positive bias in the results to portray the fasting month as “feasible” for athletes. We must keep this possibility in mind.

2. The Methodological Acid Test: The Foundation of the Study

Let's take a close look at the study's methodology, as this is key to its evidentiary power. Unfortunately, the abstract provides only limited information, but I will precisely dissect the available details. It appears to be an observational study (presumably a cohort study) in which athletes' hydration status and sleep were measured during Ramadan. The exact sample size is not mentioned in the abstract, nor are the sports or training volume of the participants. Measurement methods for hydration status could include urine specific gravity or body weight changes (common indicators), while sleep was likely assessed using questionnaires or actigraphy – but this remains unclear.

The observation period extended over the month of Ramadan (approx. 29-30 days), presumably with comparisons made before, during, and after fasting. A control group is not mentioned, which is a massive weakness. Without a V