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Volume 17, Issue 4 (2025)
Iran J War Public Health 2025, 17(4): 391-397 |
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Received: 2025/09/15 | Accepted: 2025/10/28 | Published: 2025/11/22
Received: 2025/09/15 | Accepted: 2025/10/28 | Published: 2025/11/22
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Nemati P, Barzegari Marvast H, Mosayebi Z. Effects of Resistance Training with/without Vitamin D on Muscle Strength, Walking Speed, and Muscle Mass in Elderly Women with Sarcopenia. Iran J War Public Health 2025; 17 (4) :391-397
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1- Department of Physical Education, Aligoudarz Campus (Al.C.), Islamic Azad University, Aligoudarz, Iran
2- Department of Physical Education and Sports Sciences, Faculty of Psychology and Educational Sciences, Yazd University, Yazd, Iran
2- Department of Physical Education and Sports Sciences, Faculty of Psychology and Educational Sciences, Yazd University, Yazd, Iran
Abstract (686 Views)
Aims: This study aimed to examine the effects of resistance training with and without vitamin D supplementation on muscle strength, walking speed, and muscle mass in elderly women with sarcopenia.
Materials & Methods: In this semi-experimental study with a pre-test and post-test design, 40 elderly women with sarcopenia (mean age=62.60 ± 3.27 years) from Aligoudarz City were randomly assigned to four groups, including resistance training+vitamin D, resistance training only, vitamin D only, and control (n=10 each). Resistance training was conducted over 24 sessions, while supplementation groups received vitamin D (50,000IU weekly). Muscle strength, walking speed, and muscle mass were measured before and after the intervention. Data were analyzed using t-tests and one-way ANOVA with Duncan’s post hoc test at α=0.05.
Findings: Resistance training, with or without vitamin D supplementation, significantly improved muscle strength, walking speed, and muscle mass in elderly women with sarcopenia (p<0.001). However, no significant differences were observed between the combined intervention (resistance training+vitamin D) and resistance training alone in these physical fitness outcomes (p≥0.05).
Conclusion: Resistance training significantly improves muscle strength, walking speed, and muscle mass in elderly women with sarcopenia, and vitamin D supplementation provides no additional benefit beyond resistance training alone.
Materials & Methods: In this semi-experimental study with a pre-test and post-test design, 40 elderly women with sarcopenia (mean age=62.60 ± 3.27 years) from Aligoudarz City were randomly assigned to four groups, including resistance training+vitamin D, resistance training only, vitamin D only, and control (n=10 each). Resistance training was conducted over 24 sessions, while supplementation groups received vitamin D (50,000IU weekly). Muscle strength, walking speed, and muscle mass were measured before and after the intervention. Data were analyzed using t-tests and one-way ANOVA with Duncan’s post hoc test at α=0.05.
Findings: Resistance training, with or without vitamin D supplementation, significantly improved muscle strength, walking speed, and muscle mass in elderly women with sarcopenia (p<0.001). However, no significant differences were observed between the combined intervention (resistance training+vitamin D) and resistance training alone in these physical fitness outcomes (p≥0.05).
Conclusion: Resistance training significantly improves muscle strength, walking speed, and muscle mass in elderly women with sarcopenia, and vitamin D supplementation provides no additional benefit beyond resistance training alone.
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