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Abstract
Postural responses of seven male and seven female subjects were compared during sitting, lifting, preparing to stand, standing, standing on tip-toes, and deep breathing. The responses were measured in terms of the linear and angular displacement of the head and the differential activity of two groups of neck muscles. The data were given statistical treatment. Significant differences were found in the behaviour of the two groups of muscles and in the responses of male and female subjects. It is suggested that the postural aspect of responses should be taken into consideration if neck-muscle tension is used as an index of activation level or anxiety.
Notes
∗ This study was supported by a grant (GM-04836) from the U.S. Public Health Service, with the assistance of the Tufts University Faculty Research Fund.