5 to 8 minutes before the first lift, 3 to 5 in the middle of the shift, and 15 to 20 at the end
Chapter 11 of Eileen Durfee's Spinal Fitness book writes 3 workplace standards, and the Warehouse Standard is the only 1 of the 3 that includes the Pelvic Tilt, and the only 1 whose pre-shift block makes Back Trac rolling a fixed 2-minute item and adds the Sit-Up over the PowerCushion.
Chapter 12 gives the reason Back Trac rolling comes first in the whole system: a guarded, stiff spine cannot absorb the corrective input of the Sit-Up or Pelvic Tilt as intended, and when motion is missing, the body substitutes tension. The Back Trac's full-length groove lets the spinous processes float while the roller contacts the muscles beside the spine, and the book lists 3 results of Step 1: restored segmental motion, reduced protective tone, and better tolerance for the curvature work that follows.
Chapter 17 runs the safety screen before any training: "Always run the safety screen first. Red flags require referral, not training." The screen result can also change the warehouse sequence. Under Exception 3, a predominantly Red screen with high muscle tone, swelling or severe guarding starts with Step 5 only, the Twist and Shaper rolls, and Back Trac rolling, the Sit-Up and the Pelvic Tilt wait until irritability has dropped to moderate or lower, with a re-screen after 2 to 3 sessions. Under Exception 2, a mostly Green screen with good segmental motion can begin with the Pelvic Tilt and the Sit-Up and move Back Trac rolling to the end of the session.
| Block | Time | Dose in the book |
|---|---|---|
| Pre-shift | 5 to 8 minutes | Back Trac rolling 2 minutes; Neck Flexion 6 to 10 reps; Pelvic Tilt 10 reps over the fulcrum; Sit-Up over the PowerCushion 6 to 10 reps, light density |
| Mid-shift reset | 3 to 5 minutes | Neck Flexion 6 reps; rib-over-pelvis reset; brief Back Trac roll if available |
| Post-shift | 15 to 20 minutes | Full Back Trac rolling 3 to 4 minutes; Sit-Up over the PowerCushion 10 to 15 reps; Twist and Rolls |
Back Trac rolling, 2 minutes. Chapter 12 positions the roller under the mid-back, around the lower shoulder blade region, with the spine centered in the groove, and uses the feet to roll short, slow passes from the low back up toward the shoulder blades. The legs set the speed, and the book's default is to avoid rolling aggressively into the neck. The medium-density roller comes first; hard density follows only after comfort and control improve. The book's starting dose for Back Trac rolling is 30 to 60 seconds of easy passes, or 6 to 10 slow passes, once a day, so the 2-minute pre-shift block applies once that dose is tolerated.
Neck Flexion, 6 to 10 reps. The motion in Chapter 15 is a single nod around the mid-cervical hinge near C5, against light resistance from the fingertips or the Neck Shaper, with the cue "Nod, don't push."
Pelvic Tilt, 10 reps over the fulcrum. Chapter 13 keeps both legs fully extended, with the toes pulled slightly back toward the shins so the heels glide. The upper trunk stays down. Resistance is a steady vertical load directly over the anterior superior iliac spine (ASIS), never pushed or released quickly, and the exerciser exhales and draws the pelvis up toward the rib cage. In Dr. Scherger's analysis the resistance is approximately 70 lb through the ASIS, and the downward shear it produces is 149 lb at S-L5, declining to 7 lb at L1-T12, stopped at each level by facet contact. Chapter 13's form checks: if the pelvis is being yanked with the legs, or the ribs flare and control is lost, the iliopsoas and rectus femoris have taken over, so scale back the resistance and reset; and bending the knees shifts the work to the hip flexors and defeats the purpose.
Sit-Up over the PowerCushion, 6 to 10 reps at light density. Chapter 14's setup is non-negotiable: buttocks against the cushion with zero gap, feet anchored, knees bent, a start at approximately a 45 degree trunk angle, and a recline only as far as the neck stays straight. The upward phase cue is "rib to hip," leading with the chest while the neck stays neutral.
The mid-shift block in Chapter 11 is 6 Neck Flexion reps, a rib-over-pelvis reset, and a brief Back Trac roll if 1 is available. Chapter 10's toolkit separately lists 1 dedicated reset corner per site or per department.
The post-shift block in Chapter 11 is full Back Trac rolling for 3 to 4 minutes, the Sit-Up over the PowerCushion for 10 to 15 reps, and Twist and Rolls; the twist dose and the 18 to 20 minute cap on the rolls are explained in the twist before the rolls article. Chapter 16 places Twist and Rolls at home as a nightly routine for most roles, and at work only when the full reset is possible, such as a quiet recovery room used during a standard break window. Its as-needed workplace protocol is a single 20-minute reset when a worker pulls something or feels a flare beginning.
Chapter 11 applies 4 rules to every standard: strain is acceptable and pain is not, so resistance, range or reps come down immediately if pain appears; every rep is controlled, because fast reps usually recruit compensation; neutral alignment comes before effort; and the stop signs pause training. The book's cue list for trainers is 6 phrases: keep the head stacked and do not lead with the chin; rib-to-hip without collapsing; let the support do its job and do not fight the fulcrum; slow rep, control the return; strain is okay, pain is a stop; and if you feel hip flexors or neck bracing taking over, scale down.
The standard changes as the worker progresses. Chapter 17's progression rule raises reps, range or density only when the current dose no longer produces the intended strain, or when form is cleaner than in the previous session. Lifting posture is covered in the safe lifting techniques guide, and the 3-block shift routine for drivers is in the Driver Standard article.
Under the Spinal Fitness book's rule, muscular strain is acceptable and pain is not. Pain, numbness, tingling and dizziness are stop signs in the Spinal Fitness book: stop, get evaluated, and proceed with a therapeutic exercise program designed by a Spinal Fitness expert.
Chapter 11's list for every standard adds new numbness or tingling, radiating symptoms, weakness, bowel or bladder changes, and sharp escalating pain: pause training and escalate to medical evaluation.
The Back Trac is used for the 2-minute pre-shift roll, and the PowerCushion is the fulcrum for the Pelvic Tilt and the Sit-Up; the Creatrix PowerCushion page reads "Coming soon from Creatrix Solutions".
Practitioner Eileen Durfee, NBS (Nutritional Balancing Science), NASM-CPT — inventor, author, and a Nationally Certified Spinal Fitness Specialist.
The Back Trac hydrates the spinal discs, opens up the nerve canals, stretches fascia and helps hydrate the fascial slings, and every spinal joint has 16 different possible articulations.
About 5 to 8 minutes before the shift, 3 to 5 minutes mid-shift and 15 to 20 minutes after it.
Chapter 12 states that a guarded, stiff spine cannot absorb the corrective input of the Sit-Up or Pelvic Tilt as intended.
10 reps over the fulcrum, with the legs fully extended and steady resistance over the ASIS.
Light density, for 6 to 10 reps. The post-shift block uses 10 to 15 reps.
At home for most roles; at work only when the full 18 to 20 minute reset is possible.
Published November 2, 2026 • Updated November 2, 2026
By Eileen Durfee, Nationally Certified Spinal Fitness Specialist, NASM-CPT, and author of the Spinal Fitness book.
More from Eileen Durfee
Eileen's free guide, Is Your Posture Aging You?, on EileenDurfee.com
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