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Why does exercise such as running or cycling feel much more strenuous during the first couple of minutes?

Sarah Jenkins
Sarah Jenkins
Lead Content Curator · Mar 7, 2026 · Updated Apr 13, 2026

Blood is constantly pumped all around our body to supply oxygen to all our muscles. In the case of running and cycling, we predominantly use our legs, but seeing as though we still have a regular blood circulation, our muscles find it difficult to work comfortably due to the lack of oxygen for th…

118
Words

1 min
Read Time

#70
of 500 in Psychology

+74%
vs Category Avg

The Short Answer

Blood is constantly pumped all around our body to supply oxygen to all our muscles. In the case of running and cycling, we predominantly use our legs, but seeing as though we still have a regular blood circulation, our muscles find it difficult to work comfortably due to the lack of oxygen for the task they are performing. So, our body makes the decision to divert more blood towards those specific working muscles through the contraction and dilation of the blood vessels. This is why people tend to do a "warm up" before going on a run or cycle as it helps raise the heart rate to a level where your body would be comfortable performing strenuous tasks

Analysis

Key Concepts: Blood, body, muscles

This explanation focuses on blood, body, muscles and spans 118 words across 4 sentences. At 74% above the average Psychology explanation (68 words), this is one of the more thorough answers in this category, reflecting the complexity of the underlying question.

What This Answer Covers

The explanation opens with: “Blood is constantly pumped all around our body to supply oxygen to all our muscles.” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 4 connected points.

How This Compares in Psychology

Ranked #70 of 500 Psychology questions by answer depth (top 15%). This places it in the comprehensive tier — the top quarter of most thoroughly answered questions. Questions at this depth typically involve multi-faceted topics requiring nuanced explanation.

Frequently Asked Questions

Is there a simple explanation for why exercise such as running or cycling feel much more strenuous during the first couple of minutes?

Blood is constantly pumped all around our body to supply oxygen to all our muscles. In the case of running and cycling, we predominantly use our legs, but seeing as though we still have a regular blood circulation, our muscles find it difficult to…

How detailed is this explanation compared to similar Psychology questions?

This is one of the most thorough answer at 118 words, ranked #70 of 500 Psychology questions by depth. The key concepts covered are blood, body, muscles.

What approach does this answer take to explain exercise such as running or cycling feel much more strenuous?

The explanation uses contrasting perspectives across 118 words. It is categorized under Psychology and addresses the question through 1 analytical lens.