Why Strength Training Makes You a Better Trail Runner (and How to Start)
Trail Notes | Training Foundations
it is not cross-training. it is the main event.
Why Strength Training
Makes You a Better Trail Runner.
If you have been thinking of strength work as something you should probably be doing but keep deprioritising, this is your invitation to reconsider that.
Trail running asks a great deal of the body. Uneven surfaces, variable gradients, single-leg loading on descents, lateral movements through roots and rocks. The cardiovascular system is only part of the equation. The muscular system, and specifically your ability to absorb force, stabilise under load, and generate power on varied terrain, is just as important.
Strength training is not the thing you do when you cannot run. It is the thing that makes your running better, more resilient, and more durable.
Trail Note · 01
What trail running actually demands from your muscles
Running on flat surfaces is demanding. Running on trails is a different sport. Each stride asks for a small stabilisation decision: how to absorb an unexpected camber, how to load the hip through a muddy corner, how to push off a root without rolling an ankle, how to hike a steep climb without blowing the quads you need for the descent.
These decisions happen too fast for conscious thought. The body handles them through neuromuscular coordination and muscular strength. When the muscles are undertrained, the joints compensate. That compensation is where injury starts.
Her Trails coaching cue
Strength does not make you slower. It makes you a more efficient trail runner with a lower injury risk and a faster return from fatigue. Those are worth a lot over a long race block.
Trail Note · 02
Why women specifically benefit
Women have different injury patterns to men in trail running. Knee injuries, particularly those involving the patellofemoral joint and ACL, are disproportionately common in female athletes. Hip strength, glute activation, and single-leg stability are the primary protective factors.
Women also respond well to strength training and build functional strength without necessarily building significant muscle bulk, particularly when load is programmed appropriately for training phase and hormonal context. This is not a limitation. It means strength work integrates cleanly into a training week without compromising running performance.
The female athlete who strength trains consistently is not just a stronger runner. She is a more durable one.
Trail Note · 03
What trail-specific strength actually looks like
You do not need a gym. You do not need heavy barbells. What you need is load, intent, and consistency.
These are the movements that matter most for trail runners.
The four movement priorities
Single-leg work. Lunges, step-ups, Bulgarian split squats, single-leg Romanian deadlifts. These replicate the demands of trail running more closely than any bilateral movement.
Hip hinge patterns. Deadlifts, good mornings, glute bridges. The posterior chain is your engine on uphills and your protection on descents.
Calf and ankle work. Often neglected. Critical for terrain navigation and injury prevention. Calf raises, single-leg calf raises, banded ankle stability work.
Core and trunk control. Not crunches. Anti-rotation and anti-flexion movements: planks, pallof presses, dead bugs. These support efficient running posture across long distances.
Her Trails coaching cue
Two sessions of 30 to 40 minutes per week, done consistently across a 12-week block, will produce meaningful changes in your running. You do not need to overhaul your training. You need to protect two sessions a week and show up for them.
Trail Note · 04
How to start without overwhelming the week
The most common mistake is trying to add strength on top of an already full running week all at once. That approach creates fatigue, which leads to dropped sessions, which leads to abandoning the habit entirely.
A simpler approach: replace one easy run with a strength session. The easy run you were going to do on Thursday? Make it a 30-minute strength session followed by a 20-minute easy jog if you want the movement. Over time, as strength becomes habitual, you can build back the running volume.
Inside your Her Trails membership, the strength sessions in your program are already sequenced for this. They sit alongside your running load deliberately. Let the program do that sequencing work.
Strength is not optional support work. It is the structure your running depends on.
Two sessions a week, programmed alongside your run load, will change how your body responds to terrain, fatigue, and the long second half of a race.
Reflection prompt
What has stopped me from being consistent with strength work in the past? What would need to change for two sessions a week to become non-negotiable?
train the body that holds you through the descent
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Written by the Her Trails coaching team
Trail Notes are evidence-informed coaching journals written for women who train, race and run on trails. Made to be absorbed in ten minutes and remembered for a season.
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