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Bicycle ergometry, blood tests predict physical performance in elderly marathoners

19 May 2017
A new study showed that exercise during middle age is linked with better cognition later in life.

Standard laboratory tests involving bicycle ergometry and blood measurements may be useful in determining physical capacity in elderly marathoners, a new study shows.

The study included 47 elderly marathon runners and cyclists (median age 65 [61 to 68] years; 4 females). Only those at least 60 years of age, with current training regimens of at least 2 hours per week and who joined at least one local competition within the last 3 years were included.

Among the baseline blood parameters measured were haemoglobin, 25(OH)D, total cholesterol, myeloperoxidase (MPO) and triglycerides. Bicycle ergometry, after at least a 1-day rest period, was performed to evaluate physical performance.

All blood measurements were within normal ranges except for total cholesterol (<200 mg/dL) and 25(OH)D (75 to 250 nmol). The relative performance of the sample was measured to be 152 (127.9 to 169.2) percent, and no statistically significant differences were recorded between the study sample and a model training sample.

Over a follow-up of 3 years, physical performance dropped slightly from 152 (127.9 to 169.2) percent at baseline to 149 (122 to 162) percent at follow-up (p=0.042). The median decrease in physical activity was 16 (12 to 22) percent and was observed in 64 percent of the study sample.

On the other hand, the remaining 36 percent of the participants showed a median improvement of 18 (3 to 20) percent.

Of all the tested blood parameters, total cholesterol (p=0.021), MPO (p=0.045), folic acid (p=0.008), blood urea nitrogen (BUN; p=0.016) and alanine aminotransferase (ALAT; p=0.007) were significantly correlated with change in physical performance.

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Most Read Articles
6 days ago
Eating red meat may lead to cardiovascular (CV) target organ damage over a 4-year period, according to a recent study involving hypertensive American Indians.
6 days ago
Magnetoencephalography (MEG) can detect functional network alterations accompanied by amyloid-β (Aβ) deposition in cognitively normal (CN) elderly adults before anatomical changes can be observed, a new study shows.
09 Aug 2017
Longer sleep duration is positively associated with better metabolic profiles, a new study has shown. On the other hand, there is no direct correlation between sleep duration and dietary intake.
Jairia Dela Cruz, 3 days ago
Capecitabine appears to provide additional survival benefit in triple-negative breast cancer patients treated with standard chemotherapy, significantly improving disease-free survival and overall survival but potentially increasing adverse events consistent with the drug’s known toxicity profile, according to a meta-analysis.