Assessment of Back-Squat Performance at Submaximal Loads: Is the Reliability Affected by the Variable, Exercise Technique, or Repetition Criterion?
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Tarih
2021Yazar
Perez-Castilla, AlejandroJanicijevic, Danica
Akyıldız, Zeki
Şentürk, Deniz
Garcia-Ramos, Amador
Üst veri
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This study aimed to compare the between-session reliability of different performance
variables during 2 variants of the Smith machine back-squat exercise. Twenty-six male wrestlers
performed 5 testing sessions (a 1-repetition maximum [1RM] session, and 4 experimental sessions
[2 with the pause and 2 with the rebound technique]). Each experimental session consisted of
performing 3 repetitions against 5 loads (45–55–65–75–85% of the 1RM). Mean velocity (MV), mean
power (MP), peak velocity (PV), and peak power (PP) variables were recorded by a linear position
transducer (GymAware PowerTool). The best and average scores of the 3 repetitions were considered
for statistical analyses. The coefficient of variation (CV) ranged from 3.89% (best PV score at 55%
1 RM using the pause technique) to 10.29% (average PP score at 85% 1 RM using the rebound
technique). PP showed a lower reliability than MV, MP, and PV (CVratio ≥ 1.26). The reliability
was comparable between the exercise techniques (CVratio = 1.08) and between the best and average
scores (CVratio = 1.04). These results discourage the use of PP to assess back-squat performance at
submaximal loads. The remaining variables (MV, MP, or PV), exercise techniques (pause or rebound),
and repetition criteria (best score or average score) can be indistinctly used due to their acceptable
and comparable reliability.
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9Bağlantı
https://hdl.handle.net/11363/5065Koleksiyonlar
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