Backpacks
Abbott Chiropractic
Evaluation of Backpacks
  1. Should have a padded back to reduce pressure in the back and enhance
    comfort
  2. Should have two contoured and padded shoulder straps to reduce
    pressure on the shoulders and permit free movement of the arms.  The
    one-strap diagonal shoulder bag is fine as a fashion statement if the
    backpack weight is light.  Two straps are better when the backpack is
    heavier, because the distribute the weight better and the individual is able
    to keep their posture symmetrical  
  3. Hip and chest belts should be present to transfer some of the backpack
    weight from the back and shoulders to the hips and torso
  4. Should have multiple compartments to better distribute the weight in the
    back pack, keep items secure, and enhance access to the contents
  5. Should have compression straps to stabilize articles and compress the
    contents so that items are as close to the back as possible
  6. Should have reflective material  to enhance visibility of the child to drivers
    at night

Backpacks and Back Pain
  • Recommended weight limit is 10-15% of body weight
  • Like an overuse syndrome
  • Children more vulnerable to overuse injuries because:
  • The growth plates are made of cartilage which is susceptible to microtrauma
  • Muscle growth often does not keep up with bone growth causing muscle tautness
  • Highest rate of growth between 10-12 years for females and 13-15 for males
  • Proper backpack use should be emphasized during this period
  • Ossification actually not completed in many cases until early 20’s
  • Backpack load not a good predictor but fatigue better predictor of back pain!
  • This simply allows for some individualization… pack it light and wear it only for a
    short time

Blood Pressure and Backpack Use
  • Increases significantly if weight reaches 20% of body weight

Biomechanical Consequences of Backpack Use in Children
  • Response to load is not linear
  • A 15% body weight load results in 26.7% increased load on lumbosacral spine
  • A 30% body weight load results in a 64% increased load on lumbosacral spine


Dr. Abbott’s bottom line… pack it light and wear it right!!!!