Question

Xiang is attempting to improve his muscular endurance for rock climbing on his vacation. He has increased the practice time on the indoor rock climbing wall from 45 minutes to 1 hour as well as adding 10 more pounds to his survival backpack. These training modifications demonstrate the principles of:
Overload and Progression
Overload and Specificity
Progression and Specificity
Specificity and Reversibility

Answer 1

I’m pretty sure the answer is Overload and specifity