Correlation between Isometric Maximum Strength and One Repetition Maximum in the Calf Muscle in Extended and Bended Knee Joint

Previous research points out high relevance of maximal strength measurement in the diagnostics different populations. However, there is inconsistency procedures maximum measurements. Thus, it must be questioned whether results from studies are actually comparable. Due to aforementioned problems standardization, aim this study was assess correlations between and reproducibility isometric dynamic testing. Since many investigating calf muscles, will examine plantar flexors. For purpose, 87 active participants were recruited (m: 52, f: 35, age: 28.3 ± 5.5 years, range 18-38 height: 178.3 6.6 cm, weight: 81.5 7.4 kg) who performed testing 1RM flexion both with extended bended knee joint. Pearson correlation as well concordance coefficient (CCC) determined. In literature, CCC used determine two methods. There coefficients r = 0.63 – 0.77 <i>?<sub>c</sub></i>=0.62 ? 0.77. Results comparable 1-RM previous movements. consideration CCC, seem not measure same parameter, therefore comparison measured seems difficult. Our exhibit a influence on performance. tests cannot replaced by Care taken due standardization procedure when comparing and, especially, if should measurement.