Calorie reduction with exercise results in better muscle function in older adults: study
Study finds weight loss alone not enough to improve muscle mitochondrial function
Improved muscle performance starts with better mitochondrial function. Older adults who are overweight may improve their muscle function with a weight loss program that combines exercise and calorie reduction, according to researchers from Florida Hospital, in Orlando, who presented their findings at the American Physiological Society's Physiological Bioenergetics: Mitochondria from Bench to Bedside conference in San Diego.
The researchers studied three groups of obese seniors (average age: 70) over the course of six months:
One group followed a reduced-calorie diet to lose weight. A second group combined calorie restriction with a supervised exercise program. A control group attended health education classes but did not follow any specific diet or exercise program. The research team took samples of muscle fibers from all volunteers before and after the trial period to measure the mitochondria's ability to use oxygen and provide the cells with energy (mitochondrial respiratory capacity). Mitochondrial respiratory capacity typically decreases with age as some people become less active and gain weight.
"Increased mitochondrial capacity is desired as it translates to greater metabolic and muscular functions," wrote Giovanna Distefano, first author on the study.
The researchers found no change in mitochondrial respiration rate in the control and calorie-restricted groups. The exercise and diet group, however, demonstrated improved mitochondrial respiration rates and a higher exercise capacity. These results suggest that "the addition of exercise training to a calorie restriction-induced weight loss program is essential to promote improvements in mitochondrial capacity," Distefano wrote.
The Physiological Bioenergetics: Mitochondria from Bench to Bedside conference is being held in San Diego, August 27–30, 2017.
The bugs in your gut could make you weak in the kneesBacteria in the gut, known as the gut microbiome, could…
Asked and answered: Frequently asked questions on clinical record keepingRecording patient information is an essential part of every good…
This Mother's Day, know the symptoms of concussionA bump on the head. And then another. That’s all…
Massage Therapy Expo offers unique learning experiences and diverse tradeshowMassage Therapy Expo took place over the weekend, April 21…
Pregnancy Massage Therapy Foundations
June 2, 2018
Canadian Mental Health Association Ride Don't Hide
June 24, 2018
American Massage Therapy Association 2018 National Convention
August 9-11, 2018
5th International Fascia Research Congress
November 14-15, 2018