From my experience as an avid hiker, I've realized that knee pain isn't just from going uphill but mostly from the constant stress during descents. When hiking downhill, your muscles act like brakes, absorbing impact repeatedly, which can wear down your knees if they're not prepared. That's why focusing purely on uphill training is a common mistake. Integrating exercises such as controlled step-downs and weighted step-ups into your routine can dramatically improve how your knees handle downhill hiking. For example, performing step-downs slowly teaches your muscles to control the knee’s movement without letting it collapse inward, which protects the joint from unnecessary strain. Additionally, incline calf raises are vital because strong calves help absorb shock before it reaches the knees. Incorporating mobility work for your ankles and hips also plays a crucial role since limited mobility there forces knees to compensate and endure extra pressure. Personally, after adopting these exercises, I found that my knees felt more stable and less fatigued even after long downhill sections. It’s also important to start with manageable repetitions and gradually increase intensity to prevent injury. Remember, hiking is thousands of single-leg step-ups and controlled descents, so training your body accordingly ensures you can enjoy the trails well into your later years. Preparing your body this way means you can continue exploring nature with less pain and a lower risk of knee injuries, supporting a lifetime of adventure.