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Table 6 Declaration of Symbols

From: Photographic measurement of upper-body sitting posture of high school students: A reliability and validity study

C7'x, C7'y

X coordinate of C7 marker

T8'x, T8'y

X coordinate of T8 marker

M'x, M'y

X coordinate of Manubrium marker

θC7

Smallest angle between horizontal and C7 marker stem

θT8

Smallest angle between horizontal and T8 marker stem

θM

Smallest angle between horizontal and Manubrium marker stem

LC7

Length of C7 stem

LT8

Length of T8 stem

Lm

Length of Manubrium stem

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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