Which of the following is NOT an example of a cardiorespiratory endurance exercise?

Question

BlackTom AI · Accepted Answer

Cardiorespiratory endurance describes the ability of the heart, lungs, and circulatory system to supply oxygen to working muscles during prolonged, rhythmic, large-muscle activities. Key features of cardiorespiratory (aerobic) exercise are sustained duration, continuous rhythmic movement, involvement of large muscle groups, and an elevated heart and breathing rate.

1. Relevant knowledge points and concepts
- Aerobic/cardiorespiratory exercises: activities like walking, jogging, swimming that are continuous and rhythmic and use large muscle groups.
- Anaerobic/strength/isometric exercises: activities that rely on muscular strength or static contractions (e.g., planks), often short-duration and not primarily aimed at improving aerobic capacity.

2. Step-by-step reasoning
- Check each option against the aerobic criteria (sustained time, rhythmic movement, large-muscle involvement, elevates HR/respiration).
- Treading water: continuous whole-body activity, rhythmic arm and leg movements, sustained effort — meets aerobic criteria.
- Brisk walking: continuous, rhythmic, uses large lower-body muscles for sustained periods — aerobic.
- Jogging: continuous, rhythmic, higher intensity, large muscle groups — classic aerobic exercise.
- Front planks: performed by holding a static position, primarily engages core muscles isometrically, not rhythmic or involving large alternating movements for sustained oxygen transport.

3. Intermediate explanatory steps
- Isometric contraction (plank) produces localized muscular endurance and core stability but does not systematically raise and sustain heart rate and respiration in the way aerobic activities do.
- Even if a plank is held for time, it trains muscular endurance of the core rather than systemic cardiorespiratory endurance.

4. Why the correct answer is correct
Front planks are a core-strength/isometric exercise, not a rhythmic, large-muscle, sustained aerobic activity; therefore they do not primarily develop cardiorespiratory endurance.

5. Why the other options are incorrect
- Treading water: aerobic — continuous swimming-like effort.
- Brisk walking: aerobic — sustained moderate-intensity.
- Jogging: aerobic — sustained higher-intensity.

6. Conclusion
The correct choice is front planks, which matches the provided answer.

Which of the following is NOT an example of a cardiorespiratory endurance exercise?单项选择题

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