

Photo: www.ecopromogifts.co.uk Illustrated: Vicky Lu
Three hard-cover text books, a 5-subject notebook, a planner,
a make-up bag, a lip gloss, a
compact mirror, a cell phone, an ipod, a purse, keys and sometimes even a laptop--it's the 15 pounds Allie Krukowski can't leave her house
without.
"The bag actually varies day to day," Krukowski said, "But it has never gone
below 15 pounds."2
Allie Krukowski, Chicago sophomore, like many other college students, carried
a single-strap tote bag to school and work. Krukowski noticed she got
compliments on her tote bag, because it made her look more professional at
work. However, what she didn't notice the potential long-term health concerns
with using single strap bags.
Karen Loudon, physical therapist at Watkins Memorial Health Center, explained that the problem with carrying a heavy bag was that while it might not cause an immediate injury, it had a cumulative effect.
While
carrying a tote bag, the distribution of weight becomes asymmetrical compared to carrying a
traditional double-strap backpack. As a result, back muscles are unevenly
exercised. In a parallel example, women who carry their baby with one arm for two hours every day would
end up having one hip slightly higher than the other.

Krukowski's 15-inch by 12-inch Vera Brandley
tote bag has two straps that are thinner than one of her fingers. Krukowski complained that sometimes the bag
was so heavy that the straps would leave her shoulder with red marks. Krukowski
was also concerned when her friend reminded her that she had a tendency to walk leaning to
her right side--the side
where the tote bag was.
In addition
to the uneven distribution of weight on the back, extremely thin straps can
also cut blood flow from the back to the shoulders. According to a research done by the department of
orthopedic surgery at the University of California, San Diego, adults wearing
backpacks with loads of 26 pounds for just 10 minutes will experience a reduction of 50 percent in blood flow from larger vessels to small vessels in the upper body. The research concluded that
straps can obstruct blood flow significantly, and contribute to shoulder
fatigue, and lower-back pain.
It's still a bit too early for the owners of traditional double-strap
bags to laugh. Loudon noticed that even people who carried traditional double-strap
bags were not doing it correctly, which would result in the same lower-back
pain that single-strap bags could cause.
"I know college students care about their appearances, and style is
important to them." Loudon said. "But people are carrying backpacks way too low."
Double-strap backpack relies on shoulders, back and hips to work together to share the total weight. While wearing the backpack too low might actually leave all the pressure on the shoulders. Because the human lower-back naturally curves inward, when the backpack is too low, the backpack can't distribute any horizontal weight onto the lower-back. Instead it'll leave all the pressure on the shoulders. Eventually, the vertical pressure from shoulders will transport onto the lower-back.
Interview with Karen Loudon, physical therapist at Watkins Memorial Hospital Video:Vicky Lu
Watkins
Memorial Health Center has been treating all kinds of muscular and skeletal injuries. The majority of the injuries treated at
Watkins are sports injuries, such as sprain ankles and knees from playing
basketball and football. Lower-back pain is very common too. Loudon estimated that the number of bag-related injuries and pains she treated has risen 10 percent in the past
year.
Loudon suggested
that students shouldn't carry a bag that is more
than 15 percent of their body weight. When carrying a single-strap bag, Loudon recommended to actually loop the
bag around the body to distribute weight.
Despite the tiring
shoulders, Krukowski's having trouble abandoning the huge bags. She
recently bought herself an larger tote bag, which she describes as "very functional and can fit an elephant." She never thought about taking any items out of
her bag to reduce her burden. She felt having her
things in her bag gave her a
sense of security. She was more
prepared for any occasion with her make-up bag. Besides,
she said a tote bag made her look more professional and mature, which helped her distinguish herself from other college
students. Krukowski felt fashion was a very important factor when choosing a
bag.
One of the biggest fashion trends of 2008, giant bags are becoming more
popular in 2009. Some of the largest bags, shown on the runway or by stars, go
as big as two feet in length. Yet the
trends of tote
bags that are hot on the coasts are not quite hitting the mid-west. Kathy Schoenwandt, merchandise manager at KU Bookstore, said the
best-selling schoolbag was still the traditional double-strap bag since they
can double as laptop backpacks. Being able to carry a computer on campus is important
for students who want to be able to do an assignment or get online while on
campus whenever they want.
It was a
habit for Krukowski to stuff her tote bag with books and girl's necessities.
While walking on her way to class, Krukowski tucked her hand under the taut
straps and said, "This bag is never full. But I hope the
least thing I'll add to my bag, is a bottle of asprin. "

