The best designed and best priced manual treadmill!
The curve promotes proper posture and encourages the runner to lift their knees promoting a proper "ball of your feet" foot strike. The curve combined with the friction-less cushioned slats absorb shock for a virtually no-impact workout. Walk, jog, run, sprint or immediately stop. The ProXL instantly responds to you. The Speedboard ProXL has no speed limit!
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