Catarí Sandoval-Jelves

Background/Objectives: Low-cost portable load cell dynamometers allow for real-time assessment of muscular strength. This study evaluated the reliability and repeatability of the G-Force load cell system during isometric hip abduction and adduction in young physically active Chilean adults. Methods: In total, 24 participants (19 men, 5 women) performed two maximal voluntary contractions per movement, repeated after a 24 h interval. Measured variables included Peak Force, peak rate of force development (Peak RFD), RFD at 50, 100, and 200 ms (RFD50, RFD100, RFD200), and maximum jerk. Reliability was assessed using intraclass correlation coefficients (ICCs), standard error of measurement (SEM), coefficient of variation (CV%) and Bland–Altman plots. Results: Peak Force showed excellent within-day (ICC = 0.94–0.96) and high between-day reliability (ICC = 0.87–0.89; CV = 20–30%). Bland–Altman analysis indicated negligible bias for Peak Force in abduction (−6.54 N; 95% CI −19.55 to 6.47) and adduction (−17.57 N; 95% CI −37.24 to 2.09), confirming the absence of systematic error. Peak RFD, RFD50–200, and maximum Jerk showed moderate repeatability and lower between-day reliability (ICCs = 0.39–0.70; CVs = 34–57%), indicating higher variability in explosive force indices compared with maximal strength. Conclusions: The G-Force load cell reliably measures maximal isometric hip strength, while Peak RFD, RFD50–200, and maximum jerk should be interpreted cautiously. These findings support the device as a practical, low-cost tool for sports and rehabilitation, though future studies should validate dynamic indices in larger and more diverse populations.

This research explores the perception of organizational climate and its relationship with absenteeism in critical units of a high-complexity hospital in southern Chile, characterized by high care demand. Using a qualitative phenomenological design, seven focus groups were conducted in services with high absenteeism rates (Emergency, Surgery, Operating Room, and Pediatric ICU), analyzed through content and thematic analysis. The findings reveal a predominantly negative perception of the organizational climate, emphasizing deficiencies in communication, deteriorated interpersonal relationships, lack of recognition, inadequate infrastructure, and limited professional development. These conditions significantly affect the emotional and physical well-being of staff, contributing to burnout and absenteeism. Furthermore, feelings of lack of protection, demotivation, and perceived organizational injustice were identified. The study concludes that organizational climate, particularly in contexts of high care pressure, constitutes a critical factor for staff retention and quality of care. It highlights the need for institutional strategies that promote communication, psychosocial support, and professional recognition.