Each time I get on the treadmill, I feel confident—until the questions creep in. Am I standing up properly? Am I supposed to be engaging my arms more? I try to concentrate, but then catch myself wrapping my arms around the front of the machine or looking down at my feet. Running outdoors comes so naturally, but the treadmill? It has me doubting myself constantly. I catch myself relaxing, releasing the handrails, and keeping my eyes forward. Honestly, though, each session seems like a battle of mini size between what I think I'm doing correctly and what I am possibly doing wrong!Treadmill exercise is a standard of indoor cardiovascular exercise, providing a simple means of staying active in any weather. Unfortunately, most individuals inadvertently create negative habits when exercising on the treadmill, negating the full potential of their workouts and even putting them at increased risk of injury. Both casual walkers and experienced runners alike can reap the benefits of avoiding these typical treadmill errors by maximizing performance, burning calories, and ensuring they have correct posture.1. Grabbing the HandrailsHandrails are intended as a source of support, but using them excessively undermines your form and the intensity of your workout. Gripping the rails changes your body weight to an unnatural position, compresses your stride, and makes it less effective. It also eliminates the natural arm movement involved in a great cardio session.How to Correct It:Release the handrails and walk or run at a pace where you're able to balance without holding on. If you have a medical condition where support is needed, work with a physical therapist to keep proper posture when using the handrails.2. Running Without a PlanMerely jumping onto the treadmill and hitting "start" is not an effective form of exercise. Without organization, you may not be challenging yourself enough, and you will only get mediocre results. Lack of diversity can make workouts seem stagnant and uninvigorating too.How to Correct It:Schedule your treadmill workouts with a purpose. Alternate among intervals, hill repeats, or speed changes to tax the varying muscle groups and increase endurance. For example, walk and then sprint for two minutes, alternating back and forth to maintain high heart rates and excitement in your workout.3. Looking Down Rather than AheadIt’s common to see treadmill users staring down at their feet or fixating on the control panel. Unfortunately, this habit can strain your neck, shoulders, and lower back, leading to long-term posture problems.How to Correct It:Maintain your head up and eyes forward, similar to when you're running outside. If viewing a screen for fun, place it at eye level to prevent looking down or tilting your head back.4. Hugging the Front of the TreadmillMost treadmill users prefer to stay too close to the front console, restricting their natural stride. This not only impacts performance but also heightens the risk of accidental falls, particularly if you trip or require a quick balance adjustment.How to Correct It:Stand in the middle of the treadmill belt with your natural running stance. Provide yourself with sufficient room to fully extend your legs and establish a proper stride pattern.5. No Arm MovementWhen running or walking outside, your arms swing naturally to stabilize your stride. When using a treadmill, most individuals lock their arms, allow them to hang loose, or grab the sides, lowering the effectiveness of the workout.How to Correct It:Use your arms in a natural swing while bending them at a 90-degree angle. Pumping your arms serves to create momentum, enabling your legs to move with better efficiency and enhance total calorie burn.6. Sticking to One SpeedWalking or running at a constant speed throughout your workout can be comfortable, but it doesn't push your body hard enough. Your muscles get used to it over time, and you hit plateaus in progress.How to Correct It:Vary your treadmill workout with speed changes and incline adjustments. Experiment with high-intensity interval training (HIIT), where you switch between high-speed sprints and jog recovery, to build endurance and burn more calories.7. Overlooking the Incline FeatureMost users of treadmills stay on a flat surface, which does not activate major muscles such as the glutes, hamstrings, and calves. Walking or running uphill mimics outdoor terrain and is a better workout.How to Correct It:Gradually add inclines to your workout. Begin with a 1-2% incline and progress to higher inclines as your endurance increases. Incline walking is particularly effective for building leg muscle strength and cardiovascular fitness.Effective use of a treadmill takes more than just a leg movement—it takes proper stance, strategic intention, and engagement. The treadmill is an excellent fitness tool if used properly, so invest in changing your routines and maximizing your indoor running.