
When most people think of treadmill workouts, they imagine cardio and endurance sessions focused on weight loss or heart health. But with the right approach, treadmill training can also play a key role in muscle gain. This article explores how to optimize treadmill workouts to build muscle, improve cardio & endurance, and enhance your overall fitness.
Why Cardio & Endurance Matter for Muscle Gain
Building muscle isn’t just about lifting heavy weights — your cardiovascular system plays a vital supporting role. Improved endurance means you can sustain harder, longer workouts, which boosts muscle growth. Plus, better circulation from cardio helps deliver oxygen and nutrients to muscles, aiding recovery and hypertrophy.
Step-by-Step Treadmill Workout Instructions for Muscle Gain
Ready to start? Here’s a practical treadmill routine designed to target muscle building while boosting endurance:
- Warm-Up (5-10 minutes)
Start walking at a comfortable pace (2.5–3.5 mph).
Gradually increase the incline to 1-2%.
This helps get your muscles and heart ready for the upcoming exercise.
- Incline Walking for Muscle Activation (10 minutes)
Set the treadmill incline between 5-10%.
Walk briskly at 3.5–4.5 mph.
Maintain an upright posture while actively working your glute and hamstring muscles.
This targets lower-body muscles deeply, promoting strength and endurance.
- Interval Sprints (15 minutes)
Sprint at 7–9 mph for 30 seconds.
Slow down to a walk or light jog between 2.5 and 3.5 mph for about 90 seconds to catch your breath.
Repeat this cycle 6-8 times.
Sprinting recruits fast-twitch muscle fibers essential for muscle gain.
- Weighted Vest or Resistance Bands (Optional, 10 minutes)
If you have a weighted vest, wear it during walking or incline segments.
Alternatively, use resistance bands around your thighs while walking.
This extra resistance challenges muscles further, enhancing growth.
- Cool Down (5-10 minutes)
Slow down to a comfortable walk (2–3 mph).
Reduce the incline gradually to zero.
This aids recovery and prevents stiffness.
Additional Tips for Maximizing Muscle Gain
Consistency is key: Perform this workout 2-3 times per week alongside your strength training.
Proper nutrition is essential: provide your body with enough protein and energy to help muscles recover and grow.
Rest and recovery: Allow muscle groups time to recover between intense treadmill sessions.
Listen to your body: Adjust speed and incline based on your fitness level and goals.
Benefits of This Treadmill Approach
Builds leg muscle strength and endurance simultaneously.
Enhances cardiovascular fitness, allowing longer and more intense resistance workouts.
Speeds up recovery with active blood flow.
Boosts metabolism to support lean muscle gain.




