Swimming Could Be Better for Your Heart Than Running — Here’s Why

  • تاريخ النشر: منذ 10 ساعات زمن القراءة: دقيقة قراءة

Brazilian rat study found swimming triggered stronger cardiac changes than running at matched intensity.

The Study Directly Compared Both Exercises

Both Activities Improved Aerobic Fitness

Swimming Produced Greater Heart Growth

This Was Healthy Enlargement

Individual Heart Cells Became Larger

Swimming Strengthened Heart-Muscle Contraction

A Growth Pathway Responded Differently

MicroRNAs May Help Explain the Advantage

Researchers Do Not Yet Know Why

Human Benefits Remain Unproven

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Swimming and running both improve aerobic fitness, but a new Brazilian study suggests they may reshape the heart differently. When researchers matched the two activities for duration and relative intensity, swimming produced stronger structural, functional and molecular changes.

The result does not prove that swimming protects human hearts better or that runners should change sports. The experiment involved young male rats, making it an important biological clue rather than clinical guidance for people.

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