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Table 2 Description of the protocol of the Graded Activity Group

From: Efficacy of graded activity versus supervised exercises in patients with chronic non-specific low back pain: protocol of a randomised controlled trial

Exercise Position Sets/Duration
Aerobic training on the treadmill 5-minute warm-up with speed of 5–8 km/h;  
20-minute submaximal training at 70-80% maximum heart rate;
5-minute slow-down with gradual speed reduction.
Lower limbs strengthening Exercise for the quadriceps in sitting position; 3 sets of 12 repetitions for each limb
Exercise for the hamstrings in standing position. Intervals between series of 30 seconds
Trunk strengthening Exercises for the erector spinae in ventral decubitus: trunk extension. 3 sets of 10 repetitions
   Intervals between series of 30 seconds