What are some key indicators of effective training progress?

In the context of evaluating training progress, the correct indicators are predominantly focused on measurable improvements in performance and physical capabilities. The option that mentions increased test scores, lifting weights, and enhanced performance directly correlates with objective measures of training effectiveness.

Increased test scores can reflect better knowledge, skill application, or physical performance in specific assessments, highlighting cognitive and physical advancement. Lifting heavier weights signifies increased strength, demonstrating the body's adaptation to the stresses imposed during training. Enhanced performance encompasses a wider range of fitness metrics, including speed, agility, power, and endurance, which are critical for assessing overall athletic development.

While decreased recovery times, improved flexibility, heightened endurance, and cardiovascular health are also important indicators of training progress, they do not encapsulate the comprehensive improvement in performance levels across various fitness domains as clearly as the option chosen. Greater muscle fatigue and pain tolerance may reflect an athlete's ability to endure discomfort, but it does not necessarily indicate effective training progress or enhanced performance outcomes. Therefore, the chosen option presents the most holistic view of training effectiveness through measurable performance benchmarks.