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GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE

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Gazzetta Medica Italiana Archivio per le Scienze Mediche 2009 December;168(6):347-52

Copyright © 2010 EDIZIONI MINERVA MEDICA

language: English

Posture of the thoracic spine during latissimus dorsi pulldown behind the neck position exercise in recreational weight lifters

López-Miñarro P. A. 1, Rodríguez-García P. L. 1, Santonja Medina F. M. 2

1 Department of Physical Education, University of Murcia, Murcia, Spain 2 Department of Physiotherapy, University of Murcia, Murcia, Spain


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Aim. The spinal posture is a modulate factor on intervertebral disc loads. Sagittal spine curvature is an important parameter for postural load balance in healthy males. The objective of this study was to evaluate the posture of thoracic spine during latissimus dorsi pulldown behind the neck position exercise.
Methods. A total of 195 male recreational weight lifters voluntaries (average age: 25.4±6.3 years) without upper limb or spine injuries participated in this study. Thoracic kyphosis was measured while standing in their usual relaxed posture before to start weight training with a Unilevel inclinometer ISOMED. After a warm-up and static stretch routine, the thoracic kyphosis was again measured during end of fifth repetition of latissimus dorsi pulldown behind the neck position exercise (LDP) executed on a standard lat pulldown machine. The weight was chosen by the subjects based on their perceived ability to perform between 10 and 12 repetitions until failure. Two trials were performed and the average were entered for data analyses.
Results. Thoracic kyphosis were 45.22±8.29 in relaxed standing and 49.95±9.51 in latissimus dorsi pulldown behind the neck position (P < 0.001). With regards to the standing posture, there was a greater percentage of subjects with thoracic hyperkyphosis when latissimus dorsi pulldown behind the neck position exercise was performed.
Conclusion. Thoracic kyphosis during latissimus dorsi pulldown behind the neck position is significant higher than in standing. It is neccesary to teach the weight lifters to place their thoracic kyphotic in a neutral position.

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