Purpose: To determine sex-related differences in oxygen consumption ($\dot{\mathrm{V}}{\mathrm{O}}_2$) recovery after high-intensity exercise during childhood and adolescence. Methods: Forty-two boys and 35 girls (10–17 y) performed a 60-second all-out test on a rowing ergometer. Postexercise $\dot{\mathrm{V}}{\mathrm{O}}_2$ recovery was analyzed from (1) the $\dot{\mathrm{V}}{\mathrm{O}}_2$ recovery time constant obtained from a biexponential model (τ1$\dot{\mathrm{V}}{\mathrm{O}}_2$) and (2) excess postexercise oxygen consumption calculated over a period of 8 minutes (EPOC₈) and until τ₁$\dot{\mathrm{V}}{\mathrm{O}}_2$ was reached (EPOCτ₁). Multiplicative allometric modeling was used to assess the concurrent effects of body mass or lean body mass, and age on EPOC₈ and EPOCτ₁. Results: EPOC₈ increased significantly more in boys from the age of 14 years. However, the sex difference was no longer significant when EPOC₈ was analyzed using an allometric model including body mass + age or lean body mass + age. In addition, despite a greater increase in EPOCτ₁ in boys from the age of 14 years, τ₁$\dot{\mathrm{V}}{\mathrm{O}}_2$ was not significantly different between sexes whatever age. Conclusion: While age and lean body mass accounted for the sex-related differences of EPOC during childhood and adolescence, no significant effect of age and sex was observed on the $\dot{\mathrm{V}}{\mathrm{O}}_2$ recovery time constant after high-intensity exercise.

目的：确定耗氧量的性别差异（$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$) 童年和青春期高强度运动后的恢复。方法： 42 名男孩和 35 名女孩（10-17 岁）在赛艇测力计上进行了 60 秒的全力测试。运动后$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$从 (1) 分析回收率$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$从双指数模型 (τ1$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$_{) 和 (2) 在 8 分钟 (EPOC 8} )内计算的过量运动后耗氧量，直到τ ₁$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$达到 (EPOC τ ₁ )。乘法异速生长模型用于评估体重或瘦体重以及年龄对 EPOC ₈和 EPOC τ ₁的同时影响。结果： 14 岁以上男孩的EPOC _{8显着增加。}然而，当使用包括体重 + 年龄或瘦体重 + 年龄的异速生长模型分析EPOC ₈时，性别差异不再显着。此外，尽管14 岁以上男孩的EPOC τ _{1增加较多，但}τ ₁$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$无论年龄大小，性别之间都没有显着差异。结论：虽然年龄和瘦体重是儿童和青春期 EPOC 性别相关差异的原因，但未观察到年龄和性别对 EPOC 的显着影响$\dot{\mathrm{V}}{\mathrm{欧}}_{\mathrm{2个}}$高强度运动后的恢复时间常数。