Climbs and Descents: How to Master Elevation in Trail Running

Trail running isn’t just about endurance: climbs and descents shape the rhythm of a race and often decide the final standings. To turn ascents into an asset, you must learn to pace yourself, adopt the right posture, and strengthen the right muscles. To keep descents from limiting you, prepare the quadriceps and build technique and confidence through practice.

Uphills: technique and posture

Managing effort. As the slope increases, so does your heart rate. Slow down early to stay below your anaerobic threshold. When the incline exceeds 15%, walking is often more efficient than running: it lowers your heart rate and saves your muscles. Even elite trail runners alternate running and hiking.

Stride and position. On moderate slopes (under 15%), keep running with a shorter stride and a slight forward lean. On steeper climbs, the hands-on-thighs technique helps push you upward while easing muscle strain. On very steep or loose terrain, use micro-steps, land on the forefoot, and zigzag to reduce the gradient. Whatever the incline: lean slightly forward, relax your shoulders, use your arms as levers.

Using poles. Poles distribute effort between upper and lower body, especially on long distances or steep terrain. On gentle inclines, alternate poles with your steps; on steeper climbs, plant both at the same time. Shorten them for climbs and practise in training so the movement becomes automatic.

Climb workouts

Strength training. Uphill power depends on strong quads, hamstrings and glutes: Bulgarian squats, step-ups, Romanian deadlifts, plus core work (planks, side planks, band rotations). Eccentric squats and slow step-downs prepare you for downhill impact. Two sessions per week are enough.

Short hill repeats. 80–150 m or 30–40 seconds of effort build power: 10 to 12 reps of 30 seconds at maximum effort with downhill recovery, in zone I5 (95–100% of max aerobic speed), RPE 8/10.

Long hills and threshold work. On climbs of 300 m to 1 km (6 to 30 minutes), work at race pace: 3 × 10 min or 4 × 8 min at 80–85% of max heart rate with downhill recovery. Progressive hill runs (10–20 minutes, gradually increasing pace) develop specific endurance.

Steep hills and variations. Include very steep slopes to practise alternating running and hiking, and mix runnable sections with steep segments to improve your ability to restart quickly.

Sample week focused on uphill

  • Monday: active recovery (walking, yoga)
  • Tuesday: 10 × 30 s uphill, downhill recovery — power and explosiveness
  • Wednesday: strength training (squats, lunges, core)
  • Thursday: rolling endurance run (1 h)
  • Friday: 5 × 2 min uphill at high intensity
  • Saturday: hike-run or technique session with poles
  • Sunday: long hilly run (2–3 h) — race simulation

Downhill: mastering negative elevation

Descents are often harder than climbs: intense eccentric contractions put heavy strain on the quads, and poor technique means pain, lost speed and higher injury risk.

  • Relax and increase cadence: quick, small steps prevent harsh braking.
  • Lean slightly forward: centre of gravity over your feet, knees bent, arms for balance.
  • Look ahead: anticipate the terrain and adjust your stride.
  • Adapt to the ground: on loose or unstable terrain, widen your stance or zigzag.
  • Practise regularly: technique improves with experience.

Workouts to improve downhill skills

Train 2 to 5 times per week on slopes between −5% and −20%, varying speed and incline, with accelerations of 30 seconds to 2 minutes. Build downhill volume gradually: 4 × 500 m of active descent with uphill recovery at endurance pace, then 5 × 500 m, 6 × 500 m. Add jumps, bounds, skipping steps and slow stair descents for proprioception and shock absorption, plus eccentric squats and drop jumps to strengthen quads and tendons.

Sample week focused on downhill

  • Monday: eccentric strength + core work
  • Tuesday: hilly run with fast descents
  • Wednesday: easy endurance run
  • Thursday: 4 × 500 m downhill volume session
  • Friday: yoga / mobility
  • Saturday: long technical downhill run
  • Sunday: rest or light walk

Adapt to your level

Beginners: keep intensity low, one short hill session and one rolling long run. Intermediate: add threshold climbing and regular downhill sessions. Advanced: combine long climbs, high-volume descents and complex technical blocks.

Key tips

  • Increase elevation gain and loss gradually
  • Master foot placement and balance before accelerating
  • Take in 30–60 g of carbs per hour on long runs
  • Include deload weeks and get enough sleep
  • Choose the right shoes, adjust your poles, use calf sleeves to reduce vibration
  • Build confidence by practising descents regularly

Conclusion

Mastering elevation rests on two pillars: uphill power and downhill ease. Adjust your stride, alternate running and hiking, use poles effectively, strengthen key muscles, accumulate negative elevation and prepare your quads with eccentric work. Progress gradually, recover properly, and turn every climb and descent into an advantage.