אימונים Effects of Lifting Tempo on 1 Repetition Maximum and Hormonal Responses to a Bench Pr

[Mike Bikov]

J Strength Cond Res. 2010 Mar 25. [Epub ahead of print]

Effects of Lifting Tempo on 1 Repetition Maximum and Hormonal Responses to a Bench Press Protocol.

Headley SA, Henry K, Nindl BC, Thompson BA, Kraemer WJ, Jones MT.

1Department of Exercise Science & Sport Studies, Springfield College, Springfield, Massachusetts; 2Department of Kinesiology, Texas Women's University, Denton, Texas; 3Military Performance Division, United States Army Research Institute of Environmental Medicine, Natick, Massachusetts; and 4Human Performance Laboratory, Department of Kinesiology University of Connecticut, Storrs, Connecticut.

Headley, SA, Henry, K, Nindl, BC, Thompson, BA, Kraemer, WJ, and Jones, MT. Effects of lifting tempo on 1 repetition maximum and hormonal responses to a bench press protocol. J Strength Cond Res 24(x): 000-000, 2010-This study was carried out in 2 parts: part 1 was designed to measure the 1 repetition maximum (1RM) bench press with 2 different moderate-velocity tempos (2/0/2) vs. (2/0/4) in male lifters while part 2 compared the hormonal responses at the same tempos as described in part 1 . In both parts 1 and 2, the 1RMs (lbs) were higher on the 2/0/2 tempo than on the 2/0/4 tempo. The change in plasma volume (PV) was greater after the 2/0/4 tempo (-5.7 +/- 1.7% vs. 0.96 +/- 1.2%, p < 0.05). All blood parameters were significantly (p < 0.05) higher post-exercise compared with baseline. With PV corrected, insulin-like growth factor 1 (IGF-1) (ng.mL) was higher with the 2/0/2 tempo only (pre-exercise: 277.4 +/- 21.8, post-exercise: 308.1 +/- 22.9; 2/0/4 tempo pre-exercise: 277.2 +/- 17.6, post-exercise: 284.8 +/- 21.2). In conclusion, heavier loads can be lifted and more total work can be performed using a (2/0/2) tempo compared with a slower (2/0/4) tempo, but with the exception of IGF-1, the hormonal responses are similar. Individuals may get the same metabolic responses to training by using different tempos, but they will need to use less weight at a slower tempo.

😉
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[coldfire]

In conclusion, heavier loads can be lifted and more total work can be performed using a (2/0/2) tempo compared with a slower (2/0/4) tempo

OMFG!!! 😲:O

תמיד אהבתי את המחקרים של Journal of strength and conditioning. הם גאוניים!
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[kaka]

מה זה אומר קצב של (2,0,2) ו(2,0,4)?

 

[kaka]

אפשר תשובה?

 

[אבי כהן]

משך הזמן של שלבי הלחיצה השונים (קונצנטרי, כיווץ מלא, אקצנטרי)

 

[kaka]

תודה