Which training method consists of sequential stations that target both muscular strength and cardiovascular endurance?

Circuit training is the correct answer because it is a training method that involves a series of exercises performed in rotation, targeting different muscle groups and combining both strength and cardiovascular exercises. This format allows individuals to improve their muscular strength through resistance exercises while simultaneously enhancing cardiovascular endurance by incorporating aerobic activities within the same session.

The sequential stations in circuit training typically alternate between high-intensity workouts and rest periods or lower-intensity exercises, promoting an effective workout that builds strength and endurance simultaneously. This method is particularly advantageous in promoting overall fitness and is commonly used in fitness classes due to its efficiency and versatility in accommodating various fitness levels.

In contrast, the other training methods focus on specific components of fitness. Interval training specifically targets cardiovascular endurance by alternating between high-intensity bursts and lower-intensity recovery periods. Resistance training focuses on building muscular strength without directly addressing cardiovascular endurance. Flexibility training primarily aims to enhance the range of motion in joints and muscles, which does not directly contribute to either muscular strength or cardiovascular endurance. Therefore, circuit training stands out as the optimal choice that effectively targets both fitness components.