How should exercise sessions for pregnant participants be structured?

The correct choice emphasizes the importance of beginning and ending exercise sessions with a gradual warm-up and recovery period, which is particularly crucial for pregnant participants. A proper warm-up helps to prepare the body for exercise by gradually increasing heart rate and circulation, which can minimize the risk of injury and improve performance. This is especially important for pregnant individuals, as their bodies are undergoing significant changes that can affect balance, coordination, and overall stamina.

The recovery phase at the end of the session is equally important, as it allows the body to cool down gradually and helps to normalize heart rate and blood pressure. This is beneficial for mitigating any potential dizziness or discomfort that a pregnant participant may experience after more vigorous activities.

Other options don't prioritize the specific needs of pregnant individuals in a fitness setting. For instance, starting with high-intensity activities could pose a risk of strain and lack of preparation for the body. Skipping the warm-up not only can lead to injuries but also neglects the physiological changes that occur during pregnancy which require careful attention. Additionally, solely focusing on strength training overlooks the importance of cardiovascular fitness, flexibility, and overall well-being, all of which are essential for a balanced exercise regimen during pregnancy.