Table 1.

Trunk Strength and Endurance Program using the Backstrong Apparatus

Phase	Goals	Week	Training Level	Sets	Reps	Hold Time	Rest Length/Reps	Rest Length/Sets
Teaching	1. Correct Technique 2. Identification of Starting Training Level	1	2 Levels < Submax Test Level	1	4	30	30	NA
		2	2 Levels < Submax Test Level	1	4	30	30	NA
Strength I	1. Level 6 for 20 seconds	3	2 Levels < Max Test Level	2	3	30	30	60
		4	2 Levels < Max Test Level	3	3	30	30	60
Endurance I	1. Submax level for 90 seconds	5	2 Levels < Max Test Level	1	6–8	Max*	Max*	NA
		6	2 Levels < Max Test Level	1	8–10	Max*	Max*	NA
		7	2 Levels < Max Test Level	1	8–10	Max*	Max*	NA
Strength II	1. Level 6 for 20 seconds	8	1 Level < Max Test Level	4	5	30	30	60
		9	1 Level < Max Test Level	5	5	30	30	60
Endurance II	1. Level 6 for 180 seconds	10	1 Level < Max Test Level	2	4	Max*	Max*	180
		11	1 Level < Max Test Level	2	5	Max*	Max*	180
		12	1 Level < Max Test Level	2	6	Max*	Max*	180

* Up to 90 seconds