Abstract：
:de Souza, HLR, Arriel, RA, Hohl, R, da Mota, GR, and Marocolo, M. Is ischemic preconditioning intervention occlusion-dependent to enhance resistance exercise performance? J Strength Cond Res XX(X): 000-000, 2019-Ischemic preconditioning is a rising technique with potential to improve performance. Currently, its effects are still controversial, and a placebo effect seems to have a role. In this sense, this study evaluated the effect of high-pressure (HP) and low-pressure (LP) cuffing on resistance exercise performance during repeated 5-day intervention. Twenty healthy trained men (24.0 ± 4.4 years; 80.1 ± 12.2 kg; and 176.9 ± 6.6 cm) performed a 1 repetition maximum (1RM) test before interventions. Maximal isometric force test, number of repetitions (75% 1RM), total workload (sets × reps × load), fatigue index (FI) ([set 1 - set 3]/set 1 × 100), and perceived scales were assessed during knee extension preceded by HP (3 × 5-minute unilateral leg occlusion at 50 mm Hg above systolic blood pressure), LP (3 × 5-minute unilateral leg occlusion at 20 mm Hg), or control ([CON] 30-minute resting). The main effect of cuff intervention was significant for total workload (F(1,16) = 4.2, p = 0.03) after adjusting for baseline (analysis of covariance). Adjusted means (confidence interval) and effect sizes (ES) indicate that HP (1778 kg [1,613-1944]; ES: 0.29) and LP (1761 kg [1,590-1932]; ES: 0.34) significantly increased total workload compared with CON (1,452 kg [1,262-1,643]; ES: 0.17). Finally, isometric force and FI were similar for all conditions (HP, LP, and CON) with no difference from baseline performance. In conclusion, the short-term (5-day) intervention of HP and LP cuffing increases the total workload. This effect in muscle endurance performance is nondependent of blood flow occlusion, since LP is not able to obstruct arterial blood flow. A likely motivational effect cannot be ruled out.
journal_name
J Strength Cond Resjournal_title
Journal of strength and conditioning researchauthors
de Souza HLR,Arriel RA,Hohl R,da Mota GR,Marocolo Mdoi
10.1519/JSC.0000000000003224subject
Has Abstractpub_date
2019-07-22 00:00:00eissn
1064-8011issn
1533-4287pub_type
杂志文章abstract：:Cooper, CN, Dabbs, NC, Davis, J, and Sauls, NM. Effects of lower-body muscular fatigue on vertical jump and balance performance. J Strength Cond Res 34(10): 2903-2910, 2020-Lower-body fatigue can lead to a decline in vertical jump (VJ) and balance performance due to decreased motor control and coordination. The purpos...
journal_title：Journal of strength and conditioning research
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更新日期：2012-12-01 00:00:00
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pub_type： 临床试验,杂志文章,随机对照试验
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journal_title：Journal of strength and conditioning research
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journal_title：Journal of strength and conditioning research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：2001-11-01 00:00:00
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journal_title：Journal of strength and conditioning research
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更新日期：2010-10-01 00:00:00
