Hi there- I'm a Mental Toughness Coach and help cheerleaders work through blocks/fears and build confidence. Generally conditioning/running isn't going to help someone work through a block. The only way it might help is that if the person really feels like they're getting stronger and so this will help them execute the skill. But, chances are, it will just be frustrating and feel like punishment. Typically we need to help develop their mental skills and find strategies to physically and mentally work through the block.