However, it remains undetermined whether a palpation method with higher accuracy yields different assessments of craniocervical posture and FHP classifications. 27, 28 The MTRSM applies a multivariate linear regression model to adjust for body mass and age the location of the C7SP as determined by palpation. 26 Recently, a palpation method for locating the C7SP that outperforms the accuracy of the FEM has been proposed and validated: the MTRSM. 2 ,21, 22, 23 Despite its low accuracy, the FEM 24, 25 has been regarded as the best method for locating this structure. There are several palpation methods for locating the tragus of the ear and the C7SP, which are both required to assess the CCA. Photogrammetry is an accurate and reliable tool for the objective measurement of body angles and alignments, as well as their interrelations, that characterize body posture.12, 13, 14, 15, 16 The distinction between individuals with and without FHP has been examined using photogrammetry by measuring the CCA, defined as the inner angle between the absolute horizontal line and the line drawn from the posterior tip of the C7SP to the midpoint of the tragus (Fig 1) 17, 18 the lower the CCA, the greater the degree of FHP.5, 6, 7, 8, 11 Because photogrammetry assessment-as well as other marker-based assessments in biomechanics 19, 20-is preceded by locating anatomic landmarks, the use of accurate palpation methods is arguably preferred for their location. 11 Altogether, these data suggest that accurate measurement of FHP is required for better assessment of craniocervical posture and management of musculoskeletal complaints.
10 A longitudinal study has shown that a reduction in FHP is associated with a decrease in neck-pain intensity in individuals with cervical spondylotic radiculopathy. 9 Another recent cross-sectional study has verified that posture assessment by photogrammetry or visual inspection cannot detect the presence of neck pain in young adults. 3, 4 Cross-sectional studies have reported an association of FHP with neck pain.5, 6, 7, 8 Another study, though, has reported no association between cervical posture and neck pain in young healthy adults, although no objective assessment of FHP was provided. 1, 2 Many individuals naturally adopt a forward head posture (FHP), characterized by anterior displacement of the head with respect to the trunk. If the HX300 accidentally goes overboard a flashing RED LED is automatically activated to help locate and retrieve the radio at night.The relationship between craniocervical posture and musculoskeletal complaints is controversial. If it fails thereafter under normal use, the product is covered by Standard Horizon’s Lifetime Flat Rate Service Program.
If your Standard Horizon HX300 ever fails for any reason including water damage during normal use in the first three years, STANDARD HORIZON will repair or replace it free, without hassle or charges…period!
Supplied with a USB charging cable with 110VAC adapter providing more flexibility when recharging the battery. New intuitive menu system allows easy access to all of the setup functions of the radio, making it easy to customize settings based on the preferences of the user. This gives the radio a much smaller case design yet light enough to float face up if dropped in the water.
Compact, ergonomic case design is a result of the new ultra small, large capacity 1560 mAh 3.7V Lithium Ion battery technology.