Matriks elaborasiNoPeneliti (Tahun)Tempat/TahunDesainPopulasiPenelitianHasil

1M RamprasadIndia/2010Cross sectionalLaki (200) kelas 6 (12,5 th)Sudut CV berubah signifikan after 10% load backpackSudut Tubuh dan ekst bwah berubah after load 5%

2Heather M Brackley,Joan M Stevenson/2004:, the value of 10% to 15% body weight is further research is required to determine the association between backpack use and injury and how the factors of load, backpack design, and personal characteristics, such as physical fitness, interact and influence the adaptations required when carrying a backpack.

3byNancy R. Talbott,Amit Bhattacharya,Kermit G. Davis,Rakesh Shukla,Linda Levin2009Cross sectionalndicate that 99% of students surveyed carry backpacks, 83% carry their backpacks over both shoulders and the presence of adjustable shoulder straps were the most common feature of the backpacks. Half of the students perceive their backpack as heavy and 46% indicate they carry the backpack 1020 minutes to and from school. Pain attributed to backpack use was reported by 33.5% of the students. Perceived backpack weight, duration of backpack carriage, posture, gender and school district were significantly associated with reported symptoms.

4byNeelima Navuluri,Ramesh B. NavuluriThe correlation between pain and backpack weight per body mass index among girls was positive and significant, but negative and non-significant among boys