Your knees feel fine hiking uphill for an hour. Then you turn around, and twenty minutes into the descent they get achy and cranky. Why? Downhill hiking and downhill trail running aren't the easy version of uphill. They're a different demand, and where you feel a cranky knee isn't enough information to tell you why it's happening. In this episode, Dr. Liz Koch, DPT, a physical therapist turned strength coach for outdoor women, explains what descending asks of your body and how strength training can build the capacity to handle it, without a magic list of "exercises to fix your knees." Start here Strength Foundation, a four-week, three-workouts-a-week program that teaches you how to strength train while you build the foundation (not a rehab program): https://www.outdoorwomenstrong.com/strengthfoundation/ Free guide, Feel Stronger on the Climb. Feel Better the Next Day: https://www.outdoorwomenstrong.com/3-small-changes-wa/ In this episode Why downhill hiking and trail running ask something different of your quads and knees than climbing does Why a cranky knee on the descent is a symptom, not an explanation, and the questions worth getting curious about How capacity and fatigue change the demand: the same descent twenty minutes in versus four hours in Why your muscles can adapt to lowering work Why Liz likes a high step-up with a controlled lowering, a TKE (terminal knee extension) with a band, and a wall sit with a march Red flags that mean it's time to have someone actually look at your knee Research mentioned in this episode Kuster M, Sakurai S, Wood GA. Kinematic and kinetic comparison of downhill and level walking. Clin Biomech. 1995;10(2):79-84. doi:10.1016/0268-0033(95)92043-L Hu X, Pickle NT, Grabowski AM, Silverman AK, Blemker SS. Muscle eccentric contractions increase in downhill and high-grade uphill walking. Front Bioeng Biotechnol. 2020;8:573666. doi:10.3389/fbioe.2020.573666 Bontemps B, Louis J, Owens DJ, Miríc S, Vercruyssen F, Gruet M, Erskine RM. Muscle soreness but not neuromuscular fatigue responses following downhill running differ according to the number of exercise bouts. Eur J Sport Sci. 2025;25(3):e12240. doi:10.1002/ejsc.12240 Palmieri-Smith RM, Villwock M, Downie B, Hecht G, Zernicke R. Pain and effusion and quadriceps activation and strength. J Athl Train. 2013;48(2):186-191. doi:10.4085/1062-6050-48.2.10 This episode is educational and isn't a diagnosis or medical advice. If your knee is significantly swollen, locking or giving way, getting progressively worse, or really limiting what you can do, have someone assess it. Adventure Strong. #downhillhiking #kneepain #trailrunning #hikingtips #strengthtraining #outdoorwomenstrong