Abstract：
:The aim of this study was to establish the effectiveness of a resistance training programme, designed to improve vertical jumping ability, on the grab, swing and rear-weighted track starts in swimming. Twenty-three female non-competitive swimmers participated (age 19.9 +/- 2.4 years; mean +/- s). The diving techniques were practised weekly for 8 weeks. The participants were randomly assigned to a control group (n = 11) or a resistance-training group (n = 12), which trained three times a week for 9 weeks. The tests before and after the training programme involved performing each dive technique and six dry-land tests: two countermovement jumps (with and without arms), two isokinetic squats (bar speeds of 0.44 and 0.70 rad x s(-1)) and two overhead throws (with andwithout back extension). A repeated-measures multivariate analysis of variance was used to show that resistance training improved performance in the dry-land tests (P < 0.0001). No significant improvements due to training were found for any temporal, kinematic or kinetic variables within the grab or swing starts. Significant improvements (P < 0.05) were found for the track start for take-off velocity, take-off angle and horizontal impulse. The results suggest that the improved skill of vertical jumping was not transferred directly to the start, particularly in the grab technique. Non-significant trends towards improvement were observed within all starts for vertical force components, suggesting the need to practise the dives to retrain the changed neuromuscular properties.
journal_name
J Sports Scijournal_title
Journal of sports sciencesauthors
Breed RV,Young WBdoi
10.1080/0264041031000071047subject
Has Abstractpub_date
2003-03-01 00:00:00pages
213-20issue
3eissn
0264-0414issn
1466-447Xjournal_volume
21pub_type
临床试验,杂志文章,随机对照试验abstract：:We examined the effects of pre-exercise sodium bicarbonate (NaHCO3) ingestion on the slow component of oxygen uptake (VO2) kinetics in seven professional road cyclists during intense exercise. One hour after ingesting either a placebo or NaHCO3 (0.3 g x kg body mass(-1)), each cyclist (age, 25 +/- 2 years; VO2max, 74....
journal_title：Journal of sports sciences
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1080/0264041031000070949
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journal_title：Journal of sports sciences
pub_type： 杂志文章
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journal_title：Journal of sports sciences
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of sports sciences
pub_type： 杂志文章
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pub_type： 杂志文章,随机对照试验
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journal_title：Journal of sports sciences
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
pub_type： 杂志文章,随机对照试验
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journal_title：Journal of sports sciences
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journal_title：Journal of sports sciences
pub_type： 临床试验,杂志文章
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journal_title：Journal of sports sciences
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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 sports sciences
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