Working out at home is wonderfully simple, especially when a single press of a button makes your training just a bit smarter. The SportsHero treadmills with 13% automatic incline (RunningPad Pro & WALKR Pro) instantly take your walking or running session to the next level: more calorie burn, stronger muscles and less strain on your joints. In this blog you'll discover why 13% specifically makes such a powerful difference, and how to get started with it today.
Why training with incline works
Adding an incline works because it makes your muscles and heart work harder without you having to run faster. Here's what changes when you add an incline:
- You activate more and larger muscle groups – especially your glutes, hamstrings and calves work harder.
- Your heart rate rises faster at the same speed, increasing your metabolic load.
- You shift the impact from "slapping down" (when running) to pushing force (when climbing): that's gentler on your knees and hips.
- You increase the energy cost per minute without necessarily having to run faster.
In short: more training stimulus, without a higher speed. Ideal if you train indoors or want to move during work.
Why 13% specifically is so effective
An incline between 10–15% is often called the "sweet spot" in indoor training:
- Steep enough to make a real difference in calorie burn and muscle tension.
- Still well controllable for technique and safety, even during longer sessions.
- Versatile: from relaxed fat-burning walks to intense interval blocks.
With 13% you have exactly the margin to build up progressively: you can work in micro-steps (e.g. 4% → 7% → 10% → 13%) and do short, powerful hill repeats without your speed needing to get dangerously high.
What does 13% incline actually deliver?
More calories per minute
At the same speed, walking with a steep incline can demand up to 2× more calories than walking at 0%. That's because you:
- engage heavier muscle groups,
- hit a higher heart rate zone,
- and tend to "hang" less on the belt (better posture).
Muscle building & form
- Glutes/hamstrings: more hip extension → tighter posterior chain work.
- Calves: continuous push-off against the incline → stronger lower legs.
- Core & posture: leaning slightly forward from the ankles, long torso → natural "uphill" technique.
Happy joints
You get the intensity primarily from incline, not from speed. That reduces peak load on your knees and lower back—great if you're sensitive to impact.
How to use 13% smartly: 4 proven training formats
"Use RPE (perceived effort, scale 1–10) or your heart rate zones. Fat burning is often around 60–75% of max HR."
- Duration: 30–40 min
- Speed: comfortable (where you can still talk)
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Schedule:
- 5 min warm-up – 0–3%
- 5 min – 6%
- 5 min – 9%
- 5 min – 11%
- 5 min – 13%
- 5–10 min cool-down – 0–3%
- Goal: stable fat burning, practicing good posture.
- Duration: 25–35 min
- Speed: moderate/brisk (RPE 6–7 on the hill)
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Schedule (x6):
- 2 min at 13%
- 2 min at 3% recovery
- Start with 4 repetitions and build up to 6–8.
- Duration: 20–50 min, spread throughout your day
- Speed: 2.5–4.5 km/h (workable pace)
- Incline: 3–7% (mildly challenging)
- Tip: every 5–10 min add +2% for 1–2 min, then back down.
- Duration: 20–30 min
- Speed: easy to brisk (RPE 4–6)
- Incline: every 2 min +2% until you hit 13%, then hold for 3–5 min.
- Goal: mental focus, muscular endurance.
Technique: how to stay strong and safe at 13%
- Posture: lean very slightly forward from your ankles; chest open, shoulders low.
- Stride frequency: slightly shorter, rhythmic. Avoid big, swinging strides.
- Gaze: neutral (not down at your feet).
- Handrails: holding on is fine for balance, but aim to go hands-free as soon as you can.
- Breathing: deep, rhythmic; can you still speak in short phrases? Then you're set for endurance work.
- Building up and down: increase incline in steps of 1–2%; ease it back down before you step off.
13% in your routine: practical planning
- 2–3 times a week: hill session (repeats or progressive)
- 1–3 times a week: steady-state fat burning with increasing incline
- Daily: 10–30 min light incline (3–7%) during work or TV → free extra steps
"Tip: treat incline and speed as independent dials. Feeling it in your knees? Lower your speed and keep the incline stimulus."
Frequently asked questions
Isn't 13% too heavy for beginners?
Not if you build up gradually. Start at 3–5%, extend your blocks, and increase by 1–2% weekly until 10–13% feels comfortable.
Is walking with incline more effective than flat running?
For fat burning and muscle activation, often yes—especially when working at 13%. Plus, the impact is lower than fast running.
Can I walk at 13% while working?
Choose a low speed and a light incline (3–7%) instead. Save 10–13% for short stimuli or separate sessions.
Which SportsHero suits you?
👉 For more intense training & speed
RunningPad Pro – up to 12 km/h, 13% automatic incline, sturdy running surface and premium finish.
👉 For walking during work & relaxation
WALKR Pro – up to 6 km/h, 13% automatic incline, quiet and compact for under (or next to) your desk.
Summary: why 13% makes the difference
- More calorie burn at the same speed
- Extra muscle activation (glutes, hamstrings, calves)
- Less impact than fast running
- Versatile: fat burning, strength, intervals, desk walking
- Simple & instant on SportsHero treadmills with automatic incline
Ready to train smarter?
Set your incline to 13%, pick your favorite training schedule, and feel the difference—every minute.
