Characteristics of Work Out Alter-GR GlideTrakTM Ease of set up 7.8 (2.0) 5.6 (2.7) Ease of making adjusTMents 8.5 (1.2) 4.8 (2.2) Comfort during workout 8.3 (0.9) 4.9 (2.7) Quality of work out 8.9 (0.9) 7.7 (2.5) Ability to heel strike 7.9 (1.4) 8.4 (1.2) Length of stride 8.0 (1.3) 8.3 (1.1) Post exercise soreness 8.9 (0.9) 7.7 (1.6) Preference for Equipment Want to purchase for home use 64% 36% If cost =, preference to Purchase for home 82% 18% Recommend for a community fitness Center 82% 18%*

Table 5: Participant Ratings of Equipment Characteristics and the Work Out: Quality Assurance Study I. Mean score ratings on a Scale of 0 (poor, difficult) to 10 (easy, minimal, excellent). *45% of the participants wanted to recommend both the Glide Trak™ and AlterG R