Which of the following factors is a psychological influence on an athlete's recovery from injury?

Motivation plays a crucial role as a psychological influence on an athlete's recovery from injury. When athletes are determined to return to their sport and maintain a positive outlook, they are more likely to engage actively in their rehabilitation process. This includes adhering to therapy schedules, maintaining a proper mindset, and pushing through the challenges that may arise during recovery. Motivation also helps athletes manage the emotional components of injury, such as frustration and anxiety, leading to a more proactive approach to recovery. Overall, higher levels of motivation can enhance an athlete's resilience and commitment, ultimately facilitating a faster and more successful return to performance.

In contrast, while factors like physical therapy and nutrition are essential for physical recovery, and weather conditions can affect training conditions, they do not directly pertain to the psychological aspects that significantly influence an athlete's mindset and emotional state during the recovery process.