Mean post-MI METs for each GTWT stage was compared to compendium METs of same speed (Table 2, Figure 2).
Mean control METs for each GTWT stage was compared to compendium METs of same speed (Table 2, Figure 2).
The findings of this study indicated that compared to the controls the post-MIs V[O.sub.2] mL x [kg.sup.-1] x [min.sup.-1] and subsequent METs were significantly higher during the GTWT at walking speeds of 2.0 to 4.4 m x [h.sup.-1].
None of the subjects exceeded 4.4 m-h-1 (7.8 km-h-1) during the GTWT. However, beyond 4.4 m x [h.sup.-1] research has shown that participants find it more comfortable to run (22).
Therefore, this variable may have affected the post-MIs ability to complete the latter stages of the GTWT.