1. **Lethargy**: If your dog starts to slow down significantly or seems disinterested in continuing, it could be a sign of fatigue.
2. **Heavy Panting**: While panting is normal during exercise, excessive panting, especially if accompanied by drooling, can indicate your dog is overexerted.
3. **Lagging Behind**: If your dog begins to lag behind you or stops to rest frequently, it may be too tired to continue.
4. **Sitting or Lying Down**: A tired dog may sit or lie down instead of continuing to walk or run. If your dog frequently takes breaks, it may be time to stop the exercise.
5. **Loss of Interest**: If your dog seems to lose interest in the activity, such as not wanting to play or chase after toys, it could be a sign of fatigue.
6. **Muscle Tremors**: In some cases, you may notice muscle tremors or weakness, which can indicate that your dog has pushed itself too hard.
7. **Excessive Thirst or Dry Mouth**: Dogs may become very thirsty when they are overexerted, so be sure to provide water breaks.
8. **Paw Lifting or Favoring a Limb**: If your dog shows signs of discomfort, such as lifting a paw or limping, it may be fatigued or in pain.
To prevent fatigue, always monitor your dog's energy levels during exercise and adjust the intensity and duration of activities accordingly. It's important to provide plenty of breaks, fresh water, and a cool-down period after exercise. If you notice any severe signs of fatigue or distress, consult your veterinarian for advice.
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