Greenmaster treadmills are designed to promote your health and fitness, and one of the ways we achieve this goal is to minimize stress and impact to your joints. A proper running surface is a necessity for injury free exercise. There is a great degree of variation in treadmills, and some can be like running on concrete. Greenmaster's exclusive SWING ARM™ deck cushioning system is designed to minimize the impact from running and walking.

Users that have had a history of lower back pain, shin splints, or degenerative knees will benefit from this system since the SWING ARM™ technology lessens the impact on these areas of the body. Instead of the impact sending the shock through your body, something we call "force rebound", the impact is dispersed through the swing-arm, deck, and frame of the treadmill. This creates a smooth, fluid walk or run with greatly reduced impact. The custom design allows for a soft, forgiving foot landing on the front of the belt, while providing a firm push-off from the rear. This provides an ideal surface that reduces impact and relieves pressure on your lower body muscles and tendons, in addition to your lower back.