A comparison of full range and limited range of motion strength training
Date
2000
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
ORCID
Type
Degree Level
Masters
Abstract
In strength training, intensity is considered the most important variable for
developing maximal strength. A possible way of increasing intensity is through the
use of limited range of motion (LROM) strength training. Previous studies that have
investigated LROM training have found conflicting results and have used
questionable testing protocol. Thirty-one male university students were divided into
three groups: a full range of motion (FROM) group (n=11), a LROM group (n=11),
and a control group (n=9). All groups performed initial tests of the one repetition
maximum parallel (1RM) squat and countermovement vertical jump (CMJ). The
two experimental groups trained twice a week for seven weeks in supervised
sessions that consisted of three sets of either parallel squats or half squats. All
groups were monitored with respect to other activities they performed during the
training period. Video analysis was performed on the training groups to compare
movement patterns. The 1RM squat and CMJ were then tested again after the
training period.
The FROM group showed significantly (p < .05) greater increases in the
1RM squat and CMJ than the other groups. The LROM group showed significantly
greater (p < .05) increases in the 1RM squat than the control group. The video
analysis revealed the LROM group trained with a movement pattern that was
significantly different (p < .05) than the FROM group. The results indicated that
LROM training was not as effective as FROM training for the tested performances.
However, the LROM training was found to be effective in increasing strength
outside the trained ROM. The difference in the movement pattern between the two
groups may have confounded the results because the FROM group trained with a
movement pattern that was similar to the performances being tested.
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Citation
Degree
Master of Science (M.Sc.)
Department
College of Kinesiology
Program
College of Kinesiology