Atrophy of paraspinal muscles is common in low back pain (LBP). Early studies report atrophy and abnormalities of the paraspinal muscles in 20% to 60% of people with chronic LBP.More recent data suggest a reduced cross-sectional area of multifidus at L4 and/or L5 in chronic LBP.ntroduction. Atrophy of paraspinal muscles is common in low back pain (LBP). Early studies report atrophy and abnormalities of the paraspinal muscles in 20% to 60% of people with chronic LBP. More recent data suggest a reduced cross-sectional area of multifidus at L4 and/or L5 in chronic LBP.
Hyenas usually bear litters of two to four cubs, which, unlike the other two species, are born with their eyes open. Cubs begin to eat meat from kills near the den at about 5 months, but they are suckled for as long as 12 to 18 months, an unusually long time for carnivores.
Wild pandas have evolved to eat nothing but bamboo plants -- a food that is plentiful where they live but not particularly nutritious for bears. Because of their inefficiency digesting plant material pandas need to eat a lot. Adult pandas spend 10 to 12 hours each day eating and consume about 40 pounds of food during that time. Animals that eat only other animals are called carnivores. Polar bears, sharks, woodpeckers, and anteaters are all carnivores.