Abstract:
INTRODUCTION:While current exercise guidelines recommend progressive, high-intensity resistance training (RT) to promote muscle hypertrophy and strength gains, controversy exists regarding the efficacy of lighter-load RT. We compared 2 work-matched RT interventions that differed in training intensity. METHODS:Fifteen women underwent 10 weeks of unilateral knee extensor RT. One leg was trained at increasing intensity (intensity leg, InL, 50-80% 1-repetition maximum [1-RM]), and training progression in the contralateral leg (volume leg, VoL, 50% 1-RM) was based on increasing training volumes. Quadriceps muscle size (ultrasound, dual energy X-ray absorptiometry) and strength (isokinetic dynamometry) were assessed on 4 occasions. RESULTS:Both training programs induced significant, yet comparable increases in muscle size (InL: +4.6-12%, VoL: +3.1-11%) and strength (InL: +10-16%, VoL: +10-14%). CONCLUSIONS:Training at lower than commonly suggested intensities may be an equally effective alternative form of RT. Factors other than training intensity, such as the total mechanical work during training, may strongly affect the training response.
journal_name
Muscle Nervejournal_title
Muscle & nerveauthors
Alegre LM,Aguado X,Rojas-Martín D,Martín-García M,Ara I,Csapo Rdoi
10.1002/mus.24271subject
Has Abstractpub_date
2015-01-01 00:00:00pages
92-101issue
1eissn
0148-639Xissn
1097-4598journal_volume
51pub_type
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