Which two types of training exercises focus on increasing energy capacity?

The focus on increasing energy capacity is primarily addressed in metabolic training and cardiovascular conditioning. Metabolic training, also known as high-intensity interval training (HIIT), is designed to enhance the efficiency of the body’s energy systems, facilitating better performance in activities that require quick bursts of energy. This type of training boosts both aerobic and anaerobic energy production, allowing for improved stamina and recovery.

Cardiovascular conditioning, on the other hand, is specifically aimed at developing the heart and lungs' ability to supply oxygen to the muscles during sustained physical activity. It enhances aerobic capacity, contributing to overall endurance and energy utilization during prolonged exercise. Engaging in regular cardiovascular conditioning can lead to adaptations that increase the heart's stroke volume, improve oxygen uptake (VO2 max), and facilitate better energy management during activity.

Combining these two types of training maximizes improvements in energy capacity, making this answer the most appropriate choice. Other options may contain elements of strength, flexibility, or resistance training, but they do not primarily target energy systems in the same manner as metabolic and cardiovascular training.