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Title: Manipulation of resistance training variables for strength increases in young adults
Author: Fisher, James P.
ISNI:       0000 0004 6496 815X
Awarding Body: Nottingham Trent University
Current Institution: Nottingham Trent University
Date of Award: 2016
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Objectives: Recent publications have reported that muscular strength is evidenced to improve longevity and reduce risks of all-cause mortality. The aims of the studies presented was to consider the most efficient methods of increasing muscular strength by manipulating the resistance training (RT) variables; load, type, frequency, rest interval, exercise order and intensity of effort. Design: All but one of the included studies utilised a randomised controlled trial design with three experimental groups. The remaining study considered a within-participant design where participants performed unilateral exercise and so were compared between limbs. Method: Muscular performance measurements were assessed using; a calculation of pre-intervention and post-intervention repetitions multiplied by the same absolute load, 1-repetition maximum and isometric torque measured for the lumbar extensors, knee extensors, and leg and back combined. Study duration varied between 6 and 12 weeks. Results: Analyses revealed that use of high- and low-load and differing exercise order produce equivalent muscle performance results (p > 0.05). Specific exercises for the lumbar extensors produced greater increases in isometric lumbar extension torque compared to Romanian deadlift training (p < 0.05), whereas use of a whole-body-vibratory stimulus produced no greater increases in leg and back strength compared to isometric deadlift training alone (p > 0.05). Resistance training 1.d.wk-1 produced similar strength increases to RT 2.d.wk-1 for the lumbar extensors in chronic low-back pain participants (p > 0.05). The use of advanced training techniques in the form of pre-exhaustion training or breakdown set training produced no greater gains in strength than conventional sets of RT to momentary failure (p > 0.05). Finally, where volume is equated; knee extensions performed not to failure produce similar increases in isometric knee extensor torque when compared to training to momentary failure (p > 0.05). Conclusions: The studies presented within this thesis show a coherent theme investigating optimal methods of increasing muscular strength by manipulating specific variables. The studies as a collective demonstrate the relative simplicity that can be used to attain considerable strength improvements by the use of uncomplicated resistance training.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available