Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1392
10
1
gregorian
2014
1
1
28
1
online
1
fulltext
en
The comparison of cross –education effect in young and elderly females from unilateral training of the elbow flexors
Physical Therapy
Physical Therapy
Original Research
Original Research
<p> <strong> Background </strong>:Many studies have reported the increase in strength of the untrained contralateral limb after unilateral training. The aim of this study was to compare the cross education effect in the young and elderly persons. </p><p> <strong> Methods </strong>: In this quasi-experimental and pre-post study, 12 young people aged 28.25 ±3.11 years and 12 elderly persons (aged 73.08 ± 5.3 years) participated. The subjects had no history of strength training and upper limb movement impairments. Maximal isometric flexion strength in the dominant limb and the contralateral side before and after training were measured by tensiometer. Subjects performed elbow flexion exercises in the dominant side, using 3 sets of 10 repetition of the 60-70% maximal force for two weeks. Independent and paired t test were used to analyze between and within groups differences. </p><p> <strong> Results </strong>: The results showed that short-term isometric resistive exercise led to a significant increase of strength in trained and untrained limbs in both groups (p<0.05). There was not a significant difference between the two groups in the rate of strength increase, both in the upper limb that was exercised and also in the opposite side (p> 0.05). </p><p> <strong> Conclusion </strong>: The increased muscle strength observed during training indicates positive effect of training in old adult. The increased muscle strength in untrained limb suggests the capacity of neuromuscular adaptation among old adults, suitable to be used in cases of limb immobility or unilateral impairment. </p>
Elderly, Maximal isometric muscle strength, Cross training, Cross education, Elbow flexors.
928
933
http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1569-20&slc_lang=en&sid=1
Fatemeh
Ehsani
fatemehehsani59@yahoo.com
200319475328460015421
200319475328460015421
No
Department of physical therapy, University of Social Welfare and Rehabilitation Sciences. Tehran, Iran
Afsun
Nodehi- Moghadam
afsoonnodehi@yahoo.com
200319475328460015422
200319475328460015422
Yes
Department of physiotherapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran & Associate Professor, Iranian Research Center on Ageing, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Hakimeh
Ghandali
gh_hakimeh@yahoo.com
200319475328460015423
200319475328460015423
No
Department of physical therapy, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Zahra
Ahmadizade
ahmadizade.z@gmail.com
200319475328460015424
200319475328460015424
No
Neuromuscular Rehabilitation Research Center, Semnan University of Medical Sciences, Semnan, Iran.