LOCAL MUSCULAR ENDURANCE AND PREDICTION OF 1 REPETITION MAXIMUM FOR BENCH PRESS LIFT IN DIFFERENT ATHLETIC POPULATIONS
Résumé
Desgorces,
AU1
FD, Berthelot, G, Dietrich, G, and Testa, M. Local
muscular endurance and prediction of the 1 repetition maximum
for bench press lift in different athletic populations. J Strength
Cond Res 24(x):000–000, 2009—The aim of this study was to
determine a predictive equation of 1 repetition maximum (1RM)
from local muscular endurance. Different athletic male populations
were assessed: racket/ball games players (n = 31),
power lifters (n = 22), swimmers (n = 28), and rowers (n = 29).
After the 1RM assessment for the bench press, the maximum
number of repetitions (MNR) relative to the 1RM (85%, 75%,
60%, 40%, and 20%) was tested. No significant differences in
strength evolution from 20% to 100% of the 1RM was found
between power lifters and racket/ball games players and
between swimmers and rowers. However, differences in the
strength evolution appeared between these 2 mixed groups
(p , 0.01), with differences appearing from 75% of 1RM to
lesser relative strength (p , 0.05). Nonlinear equations fitted
best with the actual data for the capacity to repeat lifts. The
evolution of strength from 100% to 20% of 1RM was better
described when the groups’ specific equations were used as
demonstrated by r2, and residuals range between the predicted
minus the measured 1RM. The short evolution of strength
(100%–75% of 1RM) was adequately modelled by the equation
based on the total population sample. The accuracy of the
1RM prediction was better when a reduced number of lifts was
performed. For untrained or novice subjects, the use of groups’
specific equation for all evolution of strengths allows for a good
estimate of 1RM and provides adequate numbers of lifts for all
levels of strength, thus optimizing the training programs.