| ARTICLE –
abstractRelative
effort changes during sit to stand and stand to sit transition
following muscle damage Spyropoulos Ioannis1,
Liamopoulou Poluxeni2, Tsatalas Themistoklis1,
Lazaridis Savvas3, Tsaopoulos Dimitrios1,
Sideris Vasileios1 1University
of Thessaly, Department of Physical Education and Sport Science,
Trikala,Greece, 2Department of Physical
Education & Sports Science, Aristotle University of
Thessaloniki, Greece, 3Department of
NELS, Athens, Greece
Abstract
Sit
to stand transition (STST) is sometimes considered as the reverse task
of the stand to sit transition (StST). The challenges of STST and StST
are exemplified by the welfare issue of elderly humans being unable to
rise from a chair and sit on a chair due to loss of muscle strength.
STST and StST like any activity of daily living loads the
musculoskeletal system (load) and muscles have to produce adequate
force (capacity) for fulfilling the task safely. The aim of
this study was: a) to investigate the relative effort changes of STST
and StST caused by DOMS and b) identifying which task is most demanding
before and after muscle damage protocol. Eighteen physically active
females participated in this study. Two-way ANOVA (4 times ×
2 muscle groups) was used to analyze DOMS, two-way ANOVA (2 times
× 2 tasks) was used to analyze the relative effort and
two-way ANOVA (5 times × 2 muscle groups) was used to analyze
isometric average peak torque. All muscle damage indices altered
significantly after the eccentric exercise confirming that muscle
damage did occur. In both tasks the relative effort is almost the same
although the muscle activation and contraction is different. Those
results could be helpful in rehabilitation of individuals with movement
difficulties due to aging or other pathology.
Key
words:biomechanics,
muscle damage, DOMS, sit to stand
Full
article:
Relative effort changes during sit to stand and stand to sit transition following muscle damage
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