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The acute effects of heavy loads on jump squat performance: an evaluation of the complex and contrast methods of power development.
J Strength Cond Res. 2002 Nov; 16(4):530-8.JS

Abstract

The purpose of this investigation was to examine power performance in jump squats when using the complex and contrast training methods. Eleven (n = 11) women participated in a familiarization session and in three randomly ordered testing sessions. One session involved completing sets of power exercises (jump squats) before sets of half squats (traditional method). The second session involved sets of half squats before sets of jump squats (complex method). A third session involved the alternation of sets of half squats and jump squats (contrast method). No significant difference in jump squat performance between each of the training methods was found. There was a significant difference (p < 0.05) in the first set of each session, with the complex method having a significantly lower peak power. Further, there was a significant difference (p < 0.05) in performance changes between the higher and lower strength groups, with the higher strength group having a greater improvement in performance using the contrast training method compared with the traditional method. It was concluded that contrast training is advantageous for increasing power output but only for athletes with relatively high strength levels.

Authors+Show Affiliations

Duthie GM
School of Human Movement and Sports Science, University of Ballarat, Mt. Helen, Australia 3350. grant.duthie@ausport.gov.au
Young WB
No affiliation info available
Aitken DA
No affiliation info available

MeSH

Analysis of VarianceCohort StudiesEvaluation Studies as TopicExerciseFemaleHumansMuscle, SkeletalPhysical Education and TrainingPhysical EnduranceReference ValuesReproducibility of ResultsSensitivity and SpecificityStress, MechanicalWeight Lifting

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

12423181

Citation

Duthie, Grant M., et al. "The Acute Effects of Heavy Loads On Jump Squat Performance: an Evaluation of the Complex and Contrast Methods of Power Development." Journal of Strength and Conditioning Research, vol. 16, no. 4, 2002, pp. 530-8.
Duthie GM, Young WB, Aitken DA. The acute effects of heavy loads on jump squat performance: an evaluation of the complex and contrast methods of power development. J Strength Cond Res. 2002;16(4):530-8.
Duthie, G. M., Young, W. B., & Aitken, D. A. (2002). The acute effects of heavy loads on jump squat performance: an evaluation of the complex and contrast methods of power development. Journal of Strength and Conditioning Research, 16(4), 530-8.
Duthie GM, Young WB, Aitken DA. The Acute Effects of Heavy Loads On Jump Squat Performance: an Evaluation of the Complex and Contrast Methods of Power Development. J Strength Cond Res. 2002;16(4):530-8. PubMed PMID: 12423181.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The acute effects of heavy loads on jump squat performance: an evaluation of the complex and contrast methods of power development. AU - Duthie,Grant M, AU - Young,Warren B, AU - Aitken,David A, PY - 2002/11/9/pubmed PY - 2003/3/19/medline PY - 2002/11/9/entrez SP - 530 EP - 8 JF - Journal of strength and conditioning research JO - J Strength Cond Res VL - 16 IS - 4 N2 - The purpose of this investigation was to examine power performance in jump squats when using the complex and contrast training methods. Eleven (n = 11) women participated in a familiarization session and in three randomly ordered testing sessions. One session involved completing sets of power exercises (jump squats) before sets of half squats (traditional method). The second session involved sets of half squats before sets of jump squats (complex method). A third session involved the alternation of sets of half squats and jump squats (contrast method). No significant difference in jump squat performance between each of the training methods was found. There was a significant difference (p < 0.05) in the first set of each session, with the complex method having a significantly lower peak power. Further, there was a significant difference (p < 0.05) in performance changes between the higher and lower strength groups, with the higher strength group having a greater improvement in performance using the contrast training method compared with the traditional method. It was concluded that contrast training is advantageous for increasing power output but only for athletes with relatively high strength levels. SN - 1064-8011 UR - https://www.unboundmedicine.com/medline/citation/12423181/The_acute_effects_of_heavy_loads_on_jump_squat_performance:_an_evaluation_of_the_complex_and_contrast_methods_of_power_development_ DB - PRIME DP - Unbound Medicine ER -