Université de Sousse, Faculté de Médecine de Sousse, Laboratoire de Physiologie et Explorations Fonctionnelles, Sousse, Tunisia.
Heart Failure (LR12SP09) Research Laboratory, Farhat HACHED University Hospital, Sousse, Tunisia.
Am J Mens Health. 2020 May-Jun;14(3):1557988320917587. doi: 10.1177/1557988320917587.
Studies raising the issue of the effects of Ramadan observance (RO) on boys' 6-min walk test (6MWT) data are rare. The studies, which did not include control groups of non-fasters, presented contradictory results. This study aimed to compare the 6MWT data (6-min walk distance [6MWD; m, %predicted], heart rate [HR; bpm, % of maximal predicted HR]), oxy-hemoglobin saturation (Oxy-sat; %), systolic and diastolic blood pressures (SBP and DBP, respectively; mmHg) determined at rest ( and at the end of the test) of a group of 22 healthy fasting boys (age: 12 to 15 years) with an age-matched non-fasting group ( = 10). The 6MWTs were performed during three experimental conditions (ECs): Pre-Ramadan, Mid-Ramadan, and Post-Ramadan. The two groups' 6MWT data for each EC were compared, and repeated factorial analysis of variance (2 groups vs. 3 ECs) was performed. Both groups had similar values of 6MWD (m, %predicted), HR or HR (bpm, % of maximal predicted HR), Oxy-sat, Oxy-sat, SBP, and DBP during the three ECs. Compared to the non-fasting group, the fasting group had significantly higher SBP (121 ± 10 vs. 130 ± 11) and DBP (72 ± 6 vs. 78 ± 7) determined during the Mid-Ramadan EC. No significant interactive effects of the groups (2) vs. ECs (3) was found for the 6MWD (%predicted; = .809), HR (%, = .555), HR (%, = .964), Oxy-sat ( = .336), Oxy-sat ( = .389), SBP ( = .708), SBP ( = .548), DBP ( = .277), and DBP ( = .096). To conclude, in boys, RO does not impact the 6MWD, HR, or Oxy-sat, but it has minimal impact on the SBP and DBP.
在进行斋月禁食的男孩中，研究禁食对 6 分钟步行测试（6MWT）数据影响的研究很少。这些研究没有包括非禁食者对照组，结果相互矛盾。本研究旨在比较一组 22 名健康禁食男孩（年龄 12 至 15 岁）与年龄匹配的非禁食组（n = 10）的 6MWT 数据（6 分钟步行距离 [6MWD；m，%预测值]、心率 [HR；bpm，最大预测 HR 的%]）、静息时（和测试结束时）的氧合血红蛋白饱和度（Oxy-sat；%）、收缩压和舒张压（SBP 和 DBP，分别；mmHg），并在斋月前、斋月中和斋月后三个实验条件（EC）下进行。比较了两组在每个 EC 的 6MWT 数据，并进行了重复方差分析（2 组与 3 个 EC）。在三个 EC 期间，两组的 6MWD（m，%预测值）、HR 或 HR（bpm，最大预测 HR 的%）、Oxy-sat、Oxy-sat、SBP 和 DBP 值相似。与非禁食组相比，禁食组在斋月中期 EC 期间的 SBP（121 ± 10 对 130 ± 11）和 DBP（72 ± 6 对 78 ± 7）显著升高。在 6MWD（%预测值；=.809）、HR（%，=.555）、HR（%，=.964）、Oxy-sat（=.336）、Oxy-sat（=.389）、SBP（=.708）、SBP（=.548）、DBP（=.277）和 DBP（=.096）方面，组间（2）与 EC（3）无显著交互作用。总之，在男孩中，RO 不会影响 6MWD、HR 或 Oxy-sat，但对 SBP 和 DBP 有轻微影响。
