Reliability and validity of the multi-point method and the 2-point method's variations of estimating the one-repetition maximum for deadlift and back squat exercises
 
Yazarlar (7)
Doç. Dr. Onat ÇETİN Yalova Üniversitesi, Türkiye
Doç. Dr. Zeki Akyıldız Gazi University, Türkiye
Barbaros Demirtaş
Bitlis Eren Üniversitesi, Türkiye
Arş. Gör. Yılmaz Sungur Akdeniz University, Türkiye
Felipe Manuel Clemente
Florin Cazan
Ovidius University, Romanya
Luca Paolo Ardigo
University of Verona, İtalya
Makale Türü Açık Erişim Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı PEERJ (Q2)
Dergi ISSN 2167-8359 Dergi Bilgileri (2022)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 03-2022
Kabul Tarihi Yayınlanma Tarihi 02-03-2022
Cilt / Sayı / Sayfa 10 / 0 / 17–17 DOI 10.7717/peerj.13013
Makale Linki https://peerj.com/articles/13013/
UAK Araştırma Alanları
Antrenman Bilimi
Özet
This study aimed at examining the concurrent validity and reliability of the multi-point method and the two-point method’s variations for estimating the one-repetition maximum (1RM) in the deadlift and squat exercises and to determine the accuracy of which optimal two loads can be used for the two-point method protocol. Thirteen resistance-trained men performed six sessions that consisted of two incremental loading tests (multi-point method: 20–40–60–80–90% and two-point method variations: 40–60%, 40–80%, 40–90%,60–80%, 60–90%) followed by 1RM tests. Both the multi-point method and the two-point method load variations showed reliable results for 1RM estimation (CV < 10%) squat and deadlift exercises. Session-session reliability was found to be low in deadlift (ICC: 0.171–0.335) and squat exercises (ICC: 0.235–0.479) of 40–60% and 60–80% in two-point methods. Deadlift (ICC: 0.815–0.996) and squat (ICC: 0.817–0.988) had high session-to-session reliability in all other methods. Regarding the validity of deadlift exercise, the multipoint method (R2 = 0.864) and two variations of the two-point method (R2 = 0.816 for 40–80%, R2 = 0.732 for 60–80%) showed very large correlations, whereas other two variations of the two-point method (R2 = 0.945 for 40–90%, R2 = 0.914 for 60–90%) showed almost perfect correlations with the actual 1RM. Regarding the validity of squat exercise, the multi-point method (R2 = 0.773) and two variations of the two-point method (R2 = 0.0847 for 60–80%, R2 = 0.705 for 40–90%) showed very large correlations, whereas 40–60% variation showed almost perfect correlation (R2 = 0.962) with the actual …
Anahtar Kelimeler
Load-velocity relationship | Multipoint method | Two-point method | Velocity-based training