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Short, frequent exercise bursts boost heart and muscle fitness in inactive adults, study finds.
Brief, frequent exercise sessions—called "exercise snacks"—can significantly improve heart and muscle fitness, especially for inactive adults, a new study in BMJ Sports Medicine finds.
Analyzing data from 11 trials with over 400 mostly sedentary adults across multiple countries, researchers discovered that two to five-minute bursts of moderate-to-vigorous activity—like stair climbing or tai chi—performed several times a week led to measurable gains in cardiorespiratory fitness for those under 65 and improved muscular endurance in older adults.
With 83% adherence, the routine proved feasible and sustainable.
While no major changes in blood pressure, cholesterol, or body composition were observed, experts say the improvements in fitness are meaningful and can help reduce long-term disease risk.
The findings support using short, flexible movement breaks as an effective way to start and maintain physical activity.
Según un estudio, los ejercicios cortos y frecuentes aumentan la capacidad cardíaca y muscular en adultos inactivos.