Lawrence, MA, Leib, DJ, Ostrowski, SJ, and Carlson, LA. Nonlinear analysis of an unstable bench press bar path and muscle activation. J Strength Cond Res 31(5): 1206-1211, 2017-Unstable resistance exercises are typically performed to improve the ability of stabilizing muscles to maintain joint integrity under a load. The purpose of this study was to examine the effects of an unstable load (as p...

Methods Apparently healthy resistance trained males (n = 30) were randomized to either a BCAA group or the CHO control group. Participants performed preliminary testing (T1) to derive peak quadriceps isometric torque, peak quadriceps isokinetic torque (60o and 120o per second), and a 1RM barbell back squat. The following week, the participants performed 10x5 repetitions at 80% of their 1RM barb...

espanolThe aim of this study was to analyze the Sticking Region at submaximal (70%, 80%, 90% until failure) and maximal (1RM) loads in concentric phase during bench press. Eleven male individuals participated (age: 22.73 ± 2.57 years, body mass: 80.2 6.9 kg, height: 179.6 7.4 cm, 1RM: 94.55 11.56 kg) with least two years press training experience. In our sample, The could only be observed 100% ...

the aim of this study was to determine the effects of circuit resistance training with different intensities on plasma ghrelin and gh in non–athlete young women. for this purpose, 20 young women were voluntarily selected and randomly divided into four experimental and control groups. experimental groups were three groups who performed the protocol with intensity of 40% 1rm (group 1), %60 1rm (g...

Chapman, M, Larumbe-Zabala, E, Triplett, NT, and Naclerio, F. Velocity change estimation by subjective measures over a wide-load spectrum in squat bench press. J Strength Cond Res 35(2S): S51–S56, 2021—This study compared whether the perception of effort measured on repetition-by-repetition basis during continuous sets to failure is different between (SQ) press (BP). After determining one repet...

BACKGROUND Research has indicated that low-to-moderate dosages of caffeine supplementation are ergogenic for sustained endurance efforts as well as high-intensity exercise. The effects of caffeine supplementation on strength-power performance are equivocal, with some studies indicating a benefit and others demonstrating no change in performance. The majority of research that has examined the ef...

the aim of this study was to investigate the acute effects of two resistance exercise protocols with slow and fast movements on some anabolic and catabolic hormones. hence, in a randomized crossover design, 10 young men (age: 23.3±1.76 yr) were divided into 3 groups: control (con), resistance exercise with slow movement (sm), and resistance exercise with fast movement (fm). subjects performed 6...

Repetitions to fatigue (RTF) using less than a 1 repetition maximum (1RM) load (RepWt) have been shown to be a good predictor of 1RM strength in men, but such information is scarce in women. The purpose of this study was to evaluate the accuracy of current prediction equations to estimate 1RM bench press performance and to determine whether resistance training changes the capability to predict ...