Journals / Ege Tıp Dergisi / 2004 / Cilt: 43 - Sayı: 1

Effects of eight-week single versus multiple sets of resistance training on bone turn-over markers in young males

Tek sete karşın çok setle yapılan sekiz haftalık direnç antrenmanlarının genç erkeklerin kemik turn-over markerleri üzerine etkisi

Pages
19–27
DOI
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⚡ TL;DR(Too Long; Didn't Read)

There were no significant differences in phosphate and DPD levels within and between groups.In conclusion the young-adult athletes of the MSG had elevated PTH and OC values, which indicate a better bone mineral metabolism.

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Objective & Hypothesis:The aim of the study was to investigate whether different training volume (single set vs. multiple sets) but equal intensity [8-12 Repeat Maximum (RM) and 12-15 RM] of 8-week weight training would lead to different changes in bone mineral metabolism.Method: 42 healthy male college students were randomly placed into single set group (SSG; n= 14), multiple-set group (MSG; n= 13) or control group (CG; n= 15).
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Key Findings & Data:MSG performed all exercises in 3 sets of 12-15 RM for the first three weeks;süper sets and 3 sets of 8-12 RM were performed for the remaining 5 weeks; 3days/week.
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Conclusion & Impact:There were no significant differences in phosphate and DPD levels within and between groups.In conclusion the young-adult athletes of the MSG had elevated PTH and OC values, which indicate a better bone mineral metabolism.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Alkalin fosfataz · Kemik ve kemikler · Kalsiyum

Abstract

The aim of the study was to investigate whether different training volume (single set vs. multiple sets) but equal intensity [8-12 Repeat Maximum (RM) and 12-15 RM] of 8-week weight training would lead to different changes in bone mineral metabolism.Method: 42 healthy male college students were randomly placed into single set group (SSG; n= 14), multiple-set group (MSG; n= 13) or control group (CG; n= 15). MSG performed all exercises in 3 sets of 12-15 RM for the first three weeks;süper sets and 3 sets of 8-12 RM were performed for the remaining 5 weeks; 3days/week. SSG performed all exercises 2+ m one set. Serum total alkaline phosphatase (ALP), calcium (Ca ) phosphate, parathyroid hormone (PTH), osteocalcin (OC), and'urinary deoxypyridinoline (DPD) levels'were measured before and at the end of the training period.PTH was- increased by 15.32% (p<0.05), 34.88% (p<0.01) and 20.76% (p<0.05) in SSG, MSG, and CG, respectively The increase observed in $Ca^{2+}$ (p=0.054) and OC (p=0.075) in MSG was nearly significant. The percent change observed in MSG was greater than the change in CG in $Ca^{2+}$ and OC (p<0.05 and p<0.01, respectively). There were no significant differences in phosphate and DPD levels within and between groups.In conclusion the young-adult athletes of the MSG had elevated PTH and OC values, which indicate a better bone mineral metabolism. Thus, resistance training performed in multiple sets can be recommended to increase bone mineral content.

Özet

Çalışmamızın amacı farklı volümde (tek set-çok set) ancak aynı şiddette [8-12Tekrar Maksimum(RM) ve 12-15 RM] yapılan sekiz haftalık direnç antrenmanlarının kemik turn-over markerleri üzerine etkisinin incelenmesi. Metod: 42 sağlıklı erkek üniversite öğrencisi rasgele tek set (TSG; n=14), çok set (ÇSG; n=13) ve kontrol grubu (KG; n=15) olarak ayrıldı. ÇSG tüm egzersizleri ilk üç hafta 3 set, 12-15RM ile; geri kalan 5 hafta ise süper set ve 3 set halinde 8-12RM ile, tüm çalışma boyunca haftada 3 gün olarak yaptı. TSG ise tüm egzersizleri tek set olarak yaptı. Çalışma döneminin başında ve sonunda serumda total alkalen fosfataz (ALP), kalsiyum (Ca +), fosfat, paratiroid hormonu (PTH), osteokalsin (OC), idrarda deoksipiridinolin (DPD) düzeyleri ölçüldü.PTH TSG, ÇSG ve KG'de sırasıyla %15.32 (p<0.05), %34.88 (p<0.01) ve %20.76 (p<0.05) olarak arttı. ÇSG'de $Ca^{2+}$ (p=0.054) ve OC (p=0.075)'de anlamlı olmayan artış görüldü. ÇSG'de $Ca^{2+}$ ve OC'de gözlenen yüzde değişim CG'den yüksekti (sırasıyla p<0.05 ve p<0.01). Fosfat ve DPD'de grup içi ve gruplar arası farklılık saptanmadı. Sonuç olarak, çok set grubundaki genç sporcular daha iyi bir kemik metabolizması göstergesi olan yüksek PTH ve OC değerlerine sahiptiler. Bu nedenle, kemik mineral metabolizmasını arttırmak için çok setler halinde yapılan direnç antrenmanlarının önerilebileceği kanısına varıldı.

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Cite This Article

BÜYÜZYAZI, G., ULMAN, C., TANELİ, F., SEVEN, S., ÇOLAKOĞLU, Ş., ÇETİNÖZ, F., ÇOLAKOĞLU, M. (2004). Effects of eight-week single versus multiple sets of resistance training on bone turn-over markers in young males. Ege Tıp Dergisi, Cilt: 43 - Sayı: 1, 19–27. https://ajindex.com/articles/223339

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