Fueling is especially important when building distance - the longer you run, the more your body relies on good nutrition to sustain energy, support recovery, and keep you consistent.

• Keep protein high to support muscle repair and adaptation.
• Prioritize complex carbs like oats, quinoa, whole grains, sweet potatoes, fruit, and vegetables for steady energy, especially before and after longer runs. Avoid relying on lots of sugar, which can cause spikes and crashes.
• Scale your intake with training load - the harder or longer your runs, the more fuel your body needs. Adjust portion sizes to match distance and intensity.
• Try caffeine in training if you want an extra boost in focus or endurance, but always practice with it before using it on a big run.

Long-run fueling

• Pre-run: Eat a carb-rich meal 2–3 hours before you start, keeping fat and fiber low for easier digestion. Stick with foods you’ve practiced with in training.
• During: For runs lasting over an hour, consider small amounts of easily digestible carbs (like gels, chews, or sports drinks) to maintain energy.
• Post-run: Replenish glycogen stores with carbs and repair muscles with protein within an hour of finishing.

Cross-training and strength work give you the durability and balance to handle higher volumes without breaking down.

Cross-training: Low-impact activities like cycling, swimming, rowing, or hiking allow you to develop cardiovascular fitness without the repetitive stress of running. They’re especially valuable on recovery days or during deload weeks, giving your joints and muscles a break while still boosting aerobic capacity. Choosing something you genuinely enjoy helps you stay consistent and adds variety to your training.

Strength training: As mileage increases, strength work becomes even more important. Exercises targeting the glutes, hamstrings, calves, and core improve posture, stability, and running economy, helping you hold form deep into long runs. Stronger muscles also reduce the impact load on your joints, lowering injury risk as your weekly volume climbs.

Even 1–2 focused sessions per week can make a noticeable difference in how well you adapt to longer distances.

With Runna, your plan builds these sessions into your schedule and tailors them to your experience and available equipment, so every workout supports your endurance goals.

When you’re running further, pacing is what keeps you steady. It’s not about running every mile at the same speed, but about finding the right effort so you can complete your runs comfortably and build endurance over time.

In this plan, pacing is effort-based. That means you’ll run by how hard it feels, not by hitting a fixed pace on your watch. On easy days, you should be able to hold a conversation without strain. On steady runs, your breathing will be more controlled but still manageable. And on long runs, the focus is on keeping the effort comfortable enough to sustain distance without fading.

The key to endurance is learning when to hold back and when to apply pressure. Go out too fast early in a run and you’ll burn energy you need later; stay too cautious and you won’t stretch your limits. Think of pacing as your rhythm - one that should feel sustainable, even as the distance creeps up.

With Runna, every session is structured with clear pace zones. This ensures you gradually increase distance while staying within the right intensity - so you can run further, recover better, and keep progressing week after week.

Running efficiently helps you cover more distance with less effort, stay comfortable for longer, and protect your body from the repetitive impact of higher mileage.

Good form supports endurance by:

• Reducing energy waste so you can maintain steady pacing.
• Protecting joints and muscles from strain as mileage increases.
• Lowering injury risk during consistent, higher-volume training.

Key things to focus on:

• Run tall with relaxed shoulders to keep posture strong as fatigue sets in.
• Keep strides short, light, and quick to stay efficient over longer distances.
• Drive arms back to support rhythm and forward momentum.
• Stay relaxed through your face, hands, and jaw to conserve energy.

When runs get longer, form naturally starts to break down - so practice holding good posture, especially in the final miles. Over time, small improvements in alignment and efficiency will pay off in lasting endurance.

Think of form as your foundation: the stronger and smoother it is, the easier it becomes to run further without added fatigue.

Long miles place extra stress on your muscles, joints, and energy systems, and it’s during recovery that your body adapts, grows stronger, and prepares for the next session.

• Sleep: Aim for 7–9 hours each night. Deep sleep is when your body repairs tissues, strengthens muscles, and consolidates endurance gains.
• Mobility work: Incorporate yoga, Pilates, or stretching into your week to improve flexibility and ease stiffness from long or back-to-back runs.
• Massage and tools: Foam rolling, massage guns, or occasional sports massage can release tightness and promote circulation, helping your legs feel fresher for longer efforts.
• ‍Nutrition and hydration: Refuel after runs with carbs to restore glycogen and protein to repair muscles. As mileage increases, hydration becomes even more critical - sip consistently throughout the day, not just during runs.
• ‍Active recovery: Low-intensity movement like walking, cycling, or swimming keeps blood flowing, aids repair, and speeds up recovery between sessions.
• Flexibility: Listen to your body. If fatigue builds or soreness lingers, take an extra rest day or reduce intensity. Skipping one session won’t derail progress, but pushing through tiredness can.

Unlike short-distance recovery, bouncing back from higher mileage can take longer. Prioritize recovery as much as the runs themselves - it’s the key to training sustainably and enjoying the process of going further.

When you start running further, the right gear makes all the difference.

• Shoes: Your most important investment. For higher mileage, a cushioned, well-fitted pair reduces fatigue and helps protect against overuse injuries. Visiting a running store for gait analysis can ensure you find the right shoe for your stride and terrain.
• Clothing: Technical, sweat-wicking fabrics like polyester or nylon are vital on long runs. They regulate temperature, minimize chafing, and keep you comfortable in all conditions. Cotton traps moisture and is best avoided.
• GPS watch or running app: Tracking distance and effort is especially important as runs get longer. Whether you’re on Garmin, COROS, Apple Watch, or Strava, Runna integrates seamlessly so you can monitor progress and stick to your plan.
• Hydration and nutrition tools: Longer runs often require fuel and fluids mid-session. Hydration vests, belts, or handheld bottles make it easy to carry water, gels, or snacks without breaking stride.
• Accessories: Lightweight belts, armbands, or packs keep essentials like keys or phones secure. Sunglasses, hats, and high-SPF sunscreen protect you on long outings where exposure to the elements is greater.

Golden rule: Test everything in training. The gear that feels good at 5k can feel very different at 15k - so make sure your kit supports you all the way.