Cardio and back

Burned almost 400 calories today on cardio alone. Stepping it up by including a light sprint in between high incline walking. Attempting to keep my HR elevated throughout my entire cardio routine. I figure this way I can burn more calories in a less amount of time. This is similar to a HIIT workout.

After cardio my back workout routine is as follows:

Seated cable rows (110lbs) 10 reps x3sets

Lat pull down (90lbs) 10 reps x3 sets

Single arm dumbell row (65lbs) 10 reps x3 sets

Goodmornings (bar alone = 45lbs) 10 reps x 3sets

Finished off with some back stretches. Feeling a little tight in my lower back area as I always do after a back workout. Static stretching helps with this.