IMPACT OF A 12 WEEK RESISTANCE AND CONCURRENT TRAINING ON BONE MECHANICAL STRENGTH AND MINERAL DENSITY OF OSTEOPOROTIC MALE WISTAR RATS

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NAZEM F.; SALEHIKIA A.; MARANDI S.M.; SHAHDADI A.

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Journal: Feyz Medical Sciences Journal Year:2016 | Volume:20 | Issue:2 Page(s): 108-117

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Title

IMPACT OF A 12 WEEK RESISTANCE AND CONCURRENT TRAINING ON BONE MECHANICAL STRENGTH AND MINERAL DENSITY OF OSTEOPOROTIC MALE WISTAR RATS

Author(s)

NAZEM F. | SALEHIKIA A. | MARANDI S.M. | SHAHDADI A. | Issue Writer Certificate

Keywords

BONE DENSITYQ3

MECHANICAL PROPERTIESQ1

OSTEOPOROSISQ2

RESISTANCE TRAININGQ1

CONCURRENT TRAININGQ1

ANIMAL MODELQ2

Abstract

Background: This study evaluated the efficacy of CONCURRENT TRAINING compared to RESISTANCE TRAINING on femoral bone mineral density (BMD) and mechanical strength of osteoporotic male rats.Materials and Methods: Eight out of 40 male Wistar rats were separated as healthy subjects. Then OSTEOPOROSIS was induced in the remaining rats by the injection of ethanol (20%, i.p) for 3 weeks. Osteoporotic rats divided into 4 groups: Baseline, RESISTANCE TRAINING, CONCURRENT TRAINING and Control. The RESISTANCE TRAINING protocol consisted of 8 series of climbs on a 110-cm vertical ladder angled at 80° with weights tied to the animal tail. The overload for first and eighth series was set at 50% and 100% of the total body mass of the animal, respectively. Concurrent group completed a combination of both resistance and endurance treadmill trainings (60 min/day, speed: 12 m/min). The left excised femur of the animals were scanned for BMD measurement and examined by three point bending test to obtain the maximum force and stiffness.Result: Two RESISTANCE TRAINING and CONCURRENT TRAINING groups had significantly increased maximum force, stiffness and BMD compared to Control group (P=0.019). Compared to resistance group, the Concurrent group showed a positive effect on bone mechanical strength (P=0.039) with no significance difference in BMD (P=0.890).Conclusion: The results of this study shows that the combination of resistance and endurance exercise may have a synergistic effect on increasing the mechanical strength of osteoporotic femoral bone in male rats compared to RESISTANCE TRAINING alone.

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APA: Copy

NAZEM, F., SALEHIKIA, A., MARANDI, S.M., & SHAHDADI, A.. (2016). IMPACT OF A 12 WEEK RESISTANCE AND CONCURRENT TRAINING ON BONE MECHANICAL STRENGTH AND MINERAL DENSITY OF OSTEOPOROTIC MALE WISTAR RATS. FEYZ, 20(2 ), 108-117. SID. https://sid.ir/paper/40933/en

Vancouver: Copy

NAZEM F., SALEHIKIA A., MARANDI S.M., SHAHDADI A.. IMPACT OF A 12 WEEK RESISTANCE AND CONCURRENT TRAINING ON BONE MECHANICAL STRENGTH AND MINERAL DENSITY OF OSTEOPOROTIC MALE WISTAR RATS. FEYZ[Internet]. 2016;20(2 ):108-117. Available from: https://sid.ir/paper/40933/en

IEEE: Copy

F. NAZEM, A. SALEHIKIA, S.M. MARANDI, and A. SHAHDADI, “IMPACT OF A 12 WEEK RESISTANCE AND CONCURRENT TRAINING ON BONE MECHANICAL STRENGTH AND MINERAL DENSITY OF OSTEOPOROTIC MALE WISTAR RATS,” FEYZ, vol. 20, no. 2 , pp. 108–117, 2016, [Online]. Available: https://sid.ir/paper/40933/en

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