resistance training

Resistance training is inextricably linked with homeostasis. Resistance training will lead to disorders and reconstruction of homeostasis, and the muscle density of the reconstructed muscle system will increase while the muscle fibers will change. Furthermore, excessive resistance training may lead to disorders of sodium and potassium ions in the body, which lead to dehydration as well as ligament, muscle, and other injuries. This paper mainly studies the effect of steady-state imbalance on the adaptation process of resistance training and explores the specific changes and micro-regulation of resistance training on the steady-state of the internal environment. Resistance training can improve homeostasis to a higher level by improving and improving the ability and level of the body's buffer system, cardiovascular system, hormone secretion and glycogen reserve. Moreover, it can also regulate insulin sensitivity, blood glucose homeostasis, bone strength, etc., so that it also has a certain auxiliary role in the treatment of chronic diseases, fracture treatment and other fields. This paper will focus on the significance of resistance training to the body's steady-state balance and the significance of long-term resistance training in the treatment of chronic diseases and fractures such as diabetes and kidney disease.

matched text: “resistance training”

Abstract Motlagh, JG and Lipps, DB. Assessing shoulder joint kinematics during the bench press exercise in competitive powerlifters with markerless motion capture. J Strength Cond Res XX(X): 000–000, 2026—The barbell bench press is fundamental in strength training and powerlifting, yet shoulder injury risk related to this exercise, especially among female athletes, is understudied. Markerless motion capture provides a scalable approach for examining three-dimensional joint kinematics during athletic maneuvers. This study characterized changes in glenohumeral range of motion throughout a standardized, fatiguing bench press protocol and assessed differences by biological sex. Nineteen competitive powerlifters (10 male and 9 female subjects) completed 3 sets of 8 repetitions of barbell bench press at 73.9% of self-reported 1-repetition maximum, following a standardized warm-up. Shoulder kinematics were recorded with markerless motion capture and analyzed with Theia3D. Primary outcomes included the intra- and interset 3D range of motion of the glenohumeral joint. Repeated-measures ANOVA examined the effects of repetition, set, arm dominance, and sex. Within each set, significant intraset increases in range of motion were observed between the first and second-to-last repetition across all joint axes: plane of elevation ( p = 0.002), elevation ( p < 0.001), and rotation ( p < 0.001). No significant interset changes were found. Female lifters demonstrated significantly greater increases in glenohumeral range of motion compared with male powerlifters in the plane of elevation ( p = 0.011) and elevation ( p = 0.036) axes but not in rotation. This study found notable intraset increases in glenohumeral range of motion during repeated bench press, with these increases most pronounced in female lifters. The findings underscore the importance of targeted injury prevention strategies and support the value of markerless motion capture for sport-specific biomechanical assessment.

matched text: “strength training”