The effects of combined training on bone metabolic markers in postmenopausal women

    A. Pereiraa,  , A.M. Costab, , A. Palmeira-de-Oliveirad , J. Soaresb, , M. Monteirob, , J.H.H. Williams

a School of Education, Polytechnic Institute of Setubal, Setúbal, Portugal
b Research Center in Sports Sciences, Health Sciences and Human Development (CIDESD), Vila Real, Portugal
c Department of Sport Sciences, University of Beira Interior, Covilhã, Portugal
d Health Sciences Research Centre (CICS-UBI), Covilhã, Portugal
e Faculty of Health Science, University of Beira Interior, Covilhã, Portugal
f Health Products Research and Development (Labfit – HPRD), Covilhã, Portugal
g Department of Sport Sciences, Exercise and Health, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal
h School of Education, Polytechnic Institute of Bragança, Bragança, Portugal
i Chester Center for Stress Research, Institute of Medicine, University of Chester, UK

Science & Sports Journal

Exercise plays an important role in maximizing and subsequent reduction of the maximum rates of bone loss. The purpose of this study was to determine whether 16 weeks of combined exercise in postmenopausal would affect bone metabolism.

Equipment and methods
Eleven participants (53.1 [±4.0] years) performed combined training that consisted of 60–75% of 1 RM, 2–3 sets of 10–15 repetitions in specific machines and 20–30 min of cardiovascular exercises using an step platform (55–80% FCreserve). Cross-linked N-terminal telopeptides of type I collagen (NTX) was used to analyze bone resorption and serum alkaline phos-phatase (ALP) to analyze bone absorption.

After the training period, postmenopausal significantly (P < 0.05) increase their muscle functionality (14% to 26.5%). Levels of NTX were not affected but there was a significant increase in bone synthesis (ALP: 12.5% to 15.9%), while there is no change in bone resorption. Combined training appears to be useful in improving total muscular performance and potentially in bone density.

Exercise; Bone formation marker; Post-menopausal women

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