Which type of exercise involves movements against gravity?

The correct choice involves resistance or strength training because this type of exercise is specifically designed to improve muscular strength and endurance through activities that require muscles to exert force against an external resistance, which can include weights, resistance bands, or even body weight. When performing exercises like squats, push-ups, or weightlifting, individuals are working against gravity, which provides the necessary challenge to the muscles, promoting growth and enhancing physical performance.

In contrast, the other types of training do not primarily focus on movements that involve significant opposition to gravity. Aerobic training generally involves continuous movement, such as running or cycling, with less emphasis on direct gravitational resistance. Flexibility training focuses on increasing the range of motion of joints and muscles without the primary goal of overcoming gravity. Balance training is intended to improve stability and control, often through exercises that may or may not involve gravity but fundamentally do not center on resistance building. Thus, resistance or strength training stands out as the primary type of exercise that specifically addresses movements against gravity.