| Kinematic, kinetic, and blood lactate profiles of continuous and intraset rest loading schemes. | |
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MedLine Citation:
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PMID: 16937965 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to investigate and compare the acute kinematic, kinetic, and blood lactate responses to continuous and intraset rest loading schemes that differed in terms of rest frequency but not total rest duration. Nine male subjects performed an isoinertial bench press task (6 repetition maximum load) with a continuous, an intraset rest equated by total rest time, volume, and load (ISRV), and an intraset rest equated by total rest time and load (ISRR) loading scheme. The scheme order was assigned in a block-randomized order with a minimum of 48 hours of recovery between testing sessions. Attached to the bar of the Smith machine was a linear position transducer that measured vertical displacement with an accuracy of 0.01 cm. Displacement data was sampled at 1,000 Hz and collected by a laptop computer running custom-built data acquisition software. Finger prick blood lactate samples were taken from the nondominant hand before exercise, immediately after exercise, and 5, 15 and 30 minutes after exercise. Blood glucose samples were taken before exercise only. It was observed that manipulating the rest period, by increasing the frequency but decreasing the length of each rest period, did not significantly influence the kinematics and kinetics associated with resistance training, but did have an effect on the postexercise blood lactate response when the load, rest duration, and training volume were equated (ISRV). This finding may be of practical significance if fatigue is important in strength development or conversely if power training requires minimal fatigue. It was also observed that increasing the frequency of the rest period enabled the subjects to perform a greater number of repetitions (ISRR), resulting in significantly greater kinematics, kinetics, and blood lactate accumulation. |
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Authors:
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James Denton; John B Cronin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of strength and conditioning research / National Strength & Conditioning Association Volume: 20 ISSN: 1064-8011 ISO Abbreviation: J Strength Cond Res Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2006-08-29 Completed Date: 2006-12-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9415084 Medline TA: J Strength Cond Res Country: United States |
Other Details:
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Languages: eng Pagination: 528-34 Citation Subset: IM; S |
Affiliation:
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New Zealand Institute of Sport and Recreation Research, Auckland University of Technology, Auckland, New Zealand. jamie.denton@aut.ac.nz |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Biomechanics Cross-Over Studies Humans Lactic Acid / blood* Male Physical Education and Training / methods* Rest / physiology* Weight Lifting / physiology* |
| Chemical | |
Reg. No./Substance:
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50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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