Force-Time Differences between Ballistic and Non-Ballistic Half-Squats
The purpose of this study was to examine the force-time differences between concentric-only half-squats (COHS) performed with ballistic (BAL) or non-ballistic (NBAL) intent across a range of loads. Eighteen resistance-trained men performed either BAL or NBAL COHS at 30%, 50%, 70%, and 90% of their o...
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MDPI AG,
2018-08-01T00:00:00Z.
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LEADER | 00000 am a22000003u 4500 | ||
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001 | doaj_6d29c33a463f460bae7fcb8fea29d924 | ||
042 | |a dc | ||
100 | 1 | 0 | |a Timothy J. Suchomel |e author |
700 | 1 | 0 | |a Christopher B. Taber |e author |
700 | 1 | 0 | |a Christopher J. Sole |e author |
700 | 1 | 0 | |a Michael H. Stone |e author |
245 | 0 | 0 | |a Force-Time Differences between Ballistic and Non-Ballistic Half-Squats |
260 | |b MDPI AG, |c 2018-08-01T00:00:00Z. | ||
500 | |a 2075-4663 | ||
500 | |a 10.3390/sports6030079 | ||
520 | |a The purpose of this study was to examine the force-time differences between concentric-only half-squats (COHS) performed with ballistic (BAL) or non-ballistic (NBAL) intent across a range of loads. Eighteen resistance-trained men performed either BAL or NBAL COHS at 30%, 50%, 70%, and 90% of their one repetition maximum (1RM) COHS. Relative peak force (PF) and relative impulse from 0–50 ms (Imp50), 0–90 ms (Imp90), 0–200 ms (Imp200), and 0–250 ms (Imp250) were compared using a series of 2 × 4 (intent × load) repeated measures ANOVAs with Bonferroni post hoc tests. Cohen’s d effect sizes were calculated to provide measures of practical significance between the BAL and NBAL COHS and each load. BAL COHS produced statistically greater PF than NBAL COHS at 30% (d = 3.37), 50% (d = 2.88), 70% (d = 2.29), and 90% 1RM (d = 1.19) (all p < 0.001). Statistically significant main effect differences were found between load-averaged BAL and NBAL COHS for Imp90 (p = 0.006, d = 0.25), Imp200 (p = 0.001, d = 0.36), and Imp250 (p < 0.001, d = 0.41), but not for Imp50 (p = 0.018, d = 0.21). Considering the greater PF and impulse observed during the BAL condition, performing COHS with BAL intent may provide a favorable training stimulus compared to COHS performed with NBAL intent. | ||
546 | |a EN | ||
690 | |a partial squat | ||
690 | |a intent | ||
690 | |a resistance training | ||
690 | |a strength | ||
690 | |a Sports | ||
690 | |a GV557-1198.995 | ||
655 | 7 | |a article |2 local | |
786 | 0 | |n Sports, Vol 6, Iss 3, p 79 (2018) | |
787 | 0 | |n http://www.mdpi.com/2075-4663/6/3/79 | |
787 | 0 | |n https://doaj.org/toc/2075-4663 | |
856 | 4 | 1 | |u https://doaj.org/article/6d29c33a463f460bae7fcb8fea29d924 |z Connect to this object online. |