It is possible for very busy mothers to improve their physical fitness without needing to dedicate additional time to training.

noli's read

This advice is based on the concept of metabolic efficiency and intensity optimization, often explored in the literature on high-intensity interval training (HIIT). Meta-analyses, such as those published in the 'British Journal of Sports Medicine', confirm that short but intense sessions can induce cardiovascular and metabolic adaptations comparable to longer endurance sessions. The idea is to maximize the recruitment of type IIa muscle fibers, which are essential for power and metabolic health, even with a reduced hourly volume. The claim is scientifically robust if it involves an increase in intensity to compensate for the decrease in duration. However, this is not 'magic' without effort, but an intelligent reallocation of available energy. It is important to note that for specific goals like maximal muscle hypertrophy or highly advanced endurance, volume remains a limiting factor. The approach is therefore pragmatic and valid for maintaining or improving general physical fitness within a constrained schedule.

the sources

1. 1Stamatakis E et al. 2022
2. 2Stamatakis E et al. 2023