Affiliations: [a] University of Nebraska-Lincoln, Lincoln, NE, USA | [b] University of Wisconsin-La Crosse, La Crosse, WI, USA | [c] Creighton University, Omaha, NE, USA
Note: [] Address for correspondence: Daniel A. Traylor, M.S., Department
of Nutrition and Health Sciences, 110 Ruth Leverton Hall, University of
Nebraska, Lincoln, NE 68583-0806, USA. Tel.: +1 402 472 2690; Fax: +1 402 472
0522; E-mail: Dtraylor21@unlserve.unl.edu
Abstract: OBJECTIVE: The purpose of the present study was to examine the
effects of three sessions of concentric isokinetic training of the forearm
flexors on peak torque (PT) at maximal voluntary isometric contraction (MVIC),
60, 180, and 300° · s^{-1} in males. METHODS: Ten adult males (mean age ± SD=21.8 ± 1.2 years; body mass=87.8 ±
18.4 kg; height=182 ± 9.5 cm) completed two pretests (pretest 1 and
pretest 2) and a posttest that included maximal unilateral isometric and
concentric isokinetic forearm flexion (non-dominant arm) muscle actions at
MVIC, 60, 180, and 300° · s^{-1}. During the three days of
training, the subjects performed five sets of ten maximal isokinetic concentric
forearm flexion (non-dominant arm) repetitions at 60° · s^{-1}. RESULTS: A three (pretest 1, pretest 2, and posttest) x four (MVIC, 60,
180, 300° ·s^{-1}) repeated measures ANOVA indicated that there
was no significant (p > 0.05) interaction, but significant main effects
for time and velocity. The follow-up t-tests for marginal means indicated that
the posttest (63.0 ± 13.1 Nm) was significantly greater than pretest 1
(55.8 ± 15.1 Nm) and pretest 2 (55.2 ± 12.4 Nm). CONCLUSION: Thus, the very short-term resistance training (VST) resulted in the same
pattern of increase in PT at each velocity. In addition, PT decreased
significantly with velocity. The current findings indicated that three days of
concentric isokinetic training for the forearm flexors were sufficient to
elicit increases in PT across a velocity spectrum (MVIC to
300° ·s^{-1}).
Keywords: Peak torque (PT), maximal voluntary isometric contraction (MVIC), very short-term resistance training (VST)
