Αύξηση Οστικής Μάζας Σε Γυνάικες 70 Ετών Μέσω Προπόνησης Αντιστάσεων
Το γνωριζαμε λιγο πολυ ηδη οτι η προπονηση με αντιστασεις εχει πολλα θετικα για ανθρωπους μεγαλυτερης ηλικιας.
Η συγκεκριμενη μελετη εδειξε πως προπονηση με αντιστασεις σε γυναικες που ειχαν μειωμενη μυικη δυναμη, 3 φορες την εβδομαδα για 60 λεπτα, ειχε ως αποτελεσμα βελτιωση της οστικης μαζας των γοφων κατα 6%!!
Ως συμπερασμα μπορουμε να πουμε πως προπονηση αντιστασεων με ασφαλεια εχει θετικα αποτελεσματα στην προληψη οστεοπορωτικων καταγματων σε γηραιοτερες γυναικες με μειωμενη μυικη δυναμη.
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Huovinen V, et al, Bone mineral density is increased after a 16-week resistance training intervention in elderly women with decreased muscle strength. Eur J Endocrinol. 175(6):571-582. 2016. Turku University. Finland
Abstract
OBJECTIVE: Non-pharmacological interventions are important in reducing risk for osteoporotic fractures. We investigated the effects of a 16-week individualized resistance training intervention on bone mineral density (BMD), bone turnover markers and 10-year relative risk (RR) for osteoporotic fracture.
DESIGN: Interventional study with a follow-up.
METHODS: In total, 37 elderly women (mean age 71.9 ± 3.1 years) with decreased muscle strength participated in the resistance training intervention three times per week with 60 min per session for 16 weeks under the supervision of a licensed physiotherapist. Total hip BMD with
quantitative CT, bone markers (sclerostin, osteocalcin, CTX, PINP, IGF-1, 25(OH)-D) and 10-year RR for osteoporotic fracture were measured at baseline, post-intervention and at 1-year follow-up after the end of the intervention. Eleven age- and sex-matched controls did not participate in the intervention but were studied at baseline and at 1-year follow-up.
RESULTS:Resistance training seemed to increase total hip BMD by 6% (P = 0.005). Sclerostin (P < 0.001) and total osteocalcin (P = 0.04) increased while other bone markers remained unchanged. A 10-year RR for major osteoporotic and hip fracture remained unchanged. At follow-up total
hip BMD (P < 0.001) decreased back to the baseline level with a simultaneous decrease in serum sclerostin (P = 0.045), CTX (P < 0.001) and an increase in 25(OH)-D (P < 0.001), 10-year RR for major osteoporotic (P = 0.002) and hip fracture (P = 0.01).
CONCLUSIONS:Our findings suggest an important role of continuous supervised resistance training for the prevention of osteoporotic fractures in elderly women with decreased muscle strength.
