Tam squat hareketinin itme evresindeki yük - güç ilişkisi

Bu araştırmanın amacı; tam squat (SQ) hareketinin itme evresindeki yük - güç ilişkisinin araştırılmasıdır. Bu amaç doğrultusunda aktif olarak spor yapan ve temel bir kuvvet düzeyine sahip 32 erkek amatör sporcu (yaş: 20.4± 1.98 yıl; boy: 179.3 ± 7.23 cm; vücut ağırlığı: 73.5 ± 9.85 kg) çalışmaya gönüllü olarak katıldı. Deneklere tam squat (SQ) hareketinde bir tekrarlı maksimal (1TM) kuvvet testi yaptırıldı ve 1TM değerlerinin farklı yüzdelerine (% 20, 30, 40, 50, 60, 70, 80, 90 ve 100) karşılık gelen ağırlıklar hesaplanarak kaydedildi.Son olarak, 1TM’nin farklı yüzdelerine karşılık gelen yüklerde deneklere tam SQ hareketi yaptırıldı ve itme evresindeki güç özellikleri ortalama güç (OG), ortalama itme gücü (OİG) ve zirve güç (ZG) olarak belirlendi. Verilerin değerlendirilmesinde;tanımlayıcı istatistik, korelasyon analizi ve bağımlı gruplar için tek yönlü varyans (ANOVA) analizi yapıldı. Analiz sonuçlarına göre; farklı yüklerde yapılan tam SQ hareketinin itme evresindeki OG ve ZG değerlerinin 1TM’nin % 20-70’i arasında; OİG değerlerinin ise 1TM'nin % 20-60'ı arasında kademeli bir artış gösterdiği ve daha sonra azaldığı elde edildi. OG (236,3 W) ve ZG (1382,5 W) parametreleri için maksimal güç değerine 1TM’nin % 70’inde, OİG (337,2 W) parametresi için ise 1TM’nin % 60’ında kaldırılan yüklerde elde edildiği sonucuna ulaşıldı. Ayrıca 1TM yüzdelik yük değerleri ile tam SQ hareketinin itme evresindeki OG (r = ,218; p<0.05) ve ZG (r = ,264; p<0.05) parametreleri arasında düşük düzeyde, pozitif ve istatistiksel olarak anlamlı bir ilişki görülürken; OİG (r = ,107; p>0.05) parametresi arasında ise istatistiksel olarak anlamlı bir ilişkinin olmadığı görülmüştür. Sonuç olarak; farklı yüklerde uygulanan tam SQ hareketinin itme evresindeki maksimal güç değerine, orta yüklerde yapılan kaldırışlar esnasında ulaşılmış ve yük - güç arasında düşük olmasına rağmen en güçlü ilişki ZG parametresi ile elde edilmiştir

Anahtar Kelimeler:

Tam squat, itme evresi, yük, güç

LOAD - POWER RELATIONSHIP IN THE PROPULSIVE PHASE OF FULL BACK SQUAT MOVEMENT

The purpose of this study was to investigate the load - power relationship during propulsive phase of full back squat (SQ) movement. For this purpose, thirty-two amateur male athletes (age: 20.4± 1.98 years; height: 179.3 ± 7.23 cm; weight: 73.5 ± 9.85 kg) who were actively involved in sports and had strenght at the basic level participated in the study voluntarily.Subjects were asked to perform the one repetition maximal (1RM) strength test and the loads (20, 30, 40, 50, 60, 70, 80, 90 and 100 %) corresponding to different percentages of the 1RM values of were calculated. Finally, subjects performed full back SQ movement for the loads corresponding to different percentages of 1RM and the power properties during propulsive phase was determined as mean power (MP), mean propulsive power (MPP) and peak power (PP). The descriptive statistics, correlation analysis and one-way analysis of variance (ANOVA) for dependent groups were used to evaluate the data. According to results; it was concluded that MP and PP values during propulsive phase of full back SQ movement performed for different loads demonstrate a gradual increase between 20 - 70 % of 1RM and then decreases. On the contrary, it was obtained that MPP values demonstratea gradual increasebetween 20-60 % of 1RM and then decreases. It was concluded that maximal power values for MPP parameter was reached at loads lifted in 60 % of 1RM, while maximal power values for MP (236,3 W) and PP (1382,5 W) parameters were reached at loads lifted in 70 % of 1RM. Also, it was seen that there are low level, positive and statistically a significant relationship between MP (r = ,218; p < 0.05) and PP (r = ,264; p < 0.05) parameters during propulsive phase of full back SQ movement with percentage load values of 1RM, while there is no statistically significant relationship between MPP and percentage load values of 1RM (r = ,107; p > 0.05). As a result; it was concluded that maximal power values during propulsive phase of full back SQ movement applied for different loads were reached during lifting performed in the middle loads and concluded that the most powerful relationship between load - power was obtained with PP parameter although it was low

Keywords:

Full backsquat, propulsivephase, load, power,

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