The influence of breast volume artificial induction in postural stability, orientation and neuro muscular control in healthy women: a cross-sectional study

Guedes, Diana Cecília Rodrigues

http://hdl.handle.net/10400.22/29694

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Authors

Guedes, Diana Cecília Rodrigues

Advisor(s)

Sousa, Andreia

Noites, Andreia

Abstract(s)

The increase in anterior load caused by breast implants can alter postural control and potentially cause short- or long-term musculoskeletal dysfunction. The aim of the study is to evaluate the immediate changes in postural control after artificial breast augmentation in healthy female volunteers. Spinal angels, center of pressure (CoP) and electromyographic activity of the spinal muscles were recorded in the static position (1 minute) and during the functional reach test (FRT) without and with implants of different volumes (220 mL, 315 mL and 36 mL). Subjective perceptions of effort, confort and weight were also assessed, as well as performance in the FRT. Statistically significant diferences between conditions were observed in the scapular elevator during the static position. Differences were identified in the medial lateral displacement of the CoP and in the activation of the upper and lower trapezius muscles during the reach phase of the TAF. In the return phase, significant diferences were observed in the elevator scapulae and upper and lower trapezius muscles. Significant differences were also found in the TAF performance and subjetctive perceptions. Smaller breast implants can alter parameters of postural control, but do not seem to be substantial enough to result in negative biomechanical effects in the short-term analysis.