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Vitamin D deficiency increased the likelihood of poor muscle function in older adults and confirms the protective effect of physical activity. Pixabay

Vitamin D deficiency may lead to poor skeletal muscle function in adults aged 60 years and over, suggests new research.

Maintaining skeletal muscle function throughout life is a crucial component of successful ageing, in promoting independence, mobility, quality of life and reducing falls and frailty.


While resistance exercise is known to preserve muscle function, there is growing evidence that adequate vitamin D status may also be protective.

“Our results show that vitamin D deficiency increased the likelihood of poor muscle function in older adults and confirms the protective effect of physical activity,” said one of the study authors Maria O’Sullivan, Associate Professor in Nutrition at Trinity College Dublin in Ireland.

“Maintaining muscle function is incredibly important, and often overlooked, in promoting healthy ageing. Addressing this through multimodal approaches that incorporate physical activity, reversing vitamin D deficiency and other modifiable diet and lifestyle components require further investigation,” O’Sullivan said.

The findings are based on the analysis of data from over 4,000 adults aged 60 years and over, from the English Longitudinal Study of Aging (ELSA).

The prevalence of muscle weakness was twice as high among older adults with vitamin D deficiency compared with vitamin D adequacy, showed the findings published in the international journal Clinical Interventions in Ageing.

Similarly, impaired “muscle performance” was three times higher in older adults with vitamin D deficiency compared with vitamin D adequacy.


While resistance exercise is known to preserve muscle function, there is growing evidence that adequate vitamin D status may also be protective. Pixabay

Based on more complex statistical analysis, the study showed that vitamin D deficiency significantly increased the likelihood of impaired muscle strength and performance.

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The study confirmed the associated benefits of physical activity. Older adults partaking in regular moderate physical activity had significantly lower likelihood of poor muscle strength and physical performance. (IANS)


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Indian wrestler Ravi Kumar (57kg) and Deepak Punia (86kg) enjoyed fruitful outings at the Tokyo Olympic Games as they secured semifinal berths in their respective weight categories at the Makuhari Messe on Wednesday.

On the opening day of the wrestling competition, Ravi Kumar defeated Bulgaria's Georgi Vangelov 14-4 on technical superiority to reach the last-four in the men's 57kg category, while compatriot Deepak Punia overcame China's Zushen Lin 6-3 on points to advance to the semifinals.

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Earlier, Ravi Kumar had won his opening-round bout by technical superiority against Colombia's Oscar Tigreros to secure a quarterfinal spot. Competing in the Round-of-16 bout against the Colombian wrestler, the 23-year-old Ravi Kumar, who is making his Olympic debut, showed no nerves as he dominated the bout to win by technical superiority (13-2).

Ravi Kumar landed attack after attack and went 13-2 up, winning the bout by technical superiority with minutes to spare. In wrestling, building up a 10-point lead over the opponent results in a victory by technical superiority.

India's 86kg freestyle wrestler Deepak Punia showed no signs of the niggle that had forced him to pull out of the Poland Open Ranking Series in Warsaw in June, as he defeated Nigeria's Ekerekeme Agiomor on technical superiority to secure a quarterfinal berth.

He got his Olympic campaign to a fine start as he was in control from the start of the bout and hardly ever allowed his Nigerian opponent any room to maneuver his moves, finally winning with a 12-1 on technical superiority.

Punia, who had also suffered an elbow injury just before the Games, was slow at the start but came into his own as the bout progressed, inflicting takedowns at regular intervals to earn points.

The Indian wrestler eased into a 4-1 lead at the break and extended his lead comfortably in the second period.

Punia, the silver medallist from the 2019 world wrestling championships, then set up a clash with China's Lin Zushen in the quarterfinals and defeated him 6-3.

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