This study analyzed the effect of elastic bands on the sticking region (SR) in the bench press within a velocity-based training approach. We sought to: (a) investigate the characteristics of the SR in sets to failure with three loads (60%, 70%, 80% 1RM) and three configurations using different contributions of elastic band tension to total resistance: 0%, 25%, and 50% (B0, B25, B50); (b) study the kinematic characteristics of the pre-sticking, sticking, and post-sticking regions; (c) analyze the differences regarding loads and bands contribution; and (d) study intersubject and intrasubject variability across loads and configurations. After determining the individual 1RM, 25 subjects completed 2 rounds of sets to failure against their 60, 70, and 80% 1RM with B0, B25, and B50 in the bench press. Elastic bands resulted in (p < 0.05 all) lower repetition times and increased SR duration across all loads. The SR occurred at a higher point of the range of motion with elastic bands. The first peak velocity increased with bands contribution (p < 0.05), while no differences were observed in the minimum and second peak velocities. It was concluded that adding elastic bands in the load configuration in the bench press alters barbell kinematics and SR characteristics.

Optimizing acute performance during strength training and competition has become an important objective for coaches and athletes. This study aimed to analyze the acute effect of supramaximal isometric holds (SMHs) on squat performance integrating barbell kinematics, force production, and postural stability. Fourteen resistance-trained subjects completed six experimental sessions encompassing squats at 60% and 80% of one-repetition maximum (1RM) following a 10 s SMH at 110% of 1RM with either 1 min or 5 min recovery, or in a control condition (CON) with no SMH. Barbell kinematics were assessed using a linear position transducer, as were vertical ground reaction force, inter-limb asymmetries, and center-of-pressure metrics via dual-force platforms. An SMH with 1 min recovery produced significant increases in mean propulsive velocity at both intensities compared to CON (+0.05 m·s⁻¹; d ≥ 0.94), a higher rate of force development at 80% of 1RM (p < 0.01), and non-significantly increased peak concentric force at 80% of 1RM (p = 0.056). An SMH with 5 min recovery had little to no effect. No significant differences were found in inter-limb force asymmetries or center-of-pressure metrics. A 10 s SMH coupled with a 1 min recovery period is a practical and costless strategy to enhance squat performance in strength-trained individuals through increased barbell velocity, force production, and unchanged postural stability.