Aging is associated with declines of the muscular strength and cardiorespiratory functions, resulting in an impaired capacity to perform daily activities. Frailty is a clinical geriatric syndrome characterized by decreases in the biological functional reserve and resis-tance to stressors, which puts older individuals at special risk of disability. To counteract the muscular strength and cardiorespiratory func-tions declines associated with aging, as well as to prevent and treat the frailty syndrome, the strength and endurance training seems to be an effective strategy to improve muscular strength and endurance performance. This article reviewed the exercise prescription in health and frail elderly subjects according to the current situation of the researches about muscular strength and cardiorespiratory function training. Based on the results found, for the healthy older adults, strength training should be performed at moderate-to high-intensity (60%-80%of 1 RM ), and moderate volume (2-3 sets per exercise, 2-3 times/week ). Also, endurance training should be performed at moderate-to high-in-tensity (60%-85% of VO2max), and moderat volume (25-40 min). The frail older adults should exercise 2-3 times a week, for 45-60 min. Strength, endurance, flexibility, and balance training components should be incorporated, and strength and balance training should be empha-sized.

Objective To prepare and characterize caspofungin acetate-loaded solid lipid nanoparticles using glycerol monostearate （CAS-SLNs）, and investigate the antifungal effect of potentiation on Candida albicans in vitro and in vivo. Methods A high performance liquid chromatography method was established for the determination of caspofungin acetate （CAS）. CAS-SLNs were prepared by the melt-emulsification method and characterized. The minimum inhibitory concentration （MIC） and the inhibitory effect on Candida albicans biofilm were determined. A systemic infection model of Candida albicans was established in mice, and the growth curve models for body weight and fungal load of kidneys of the animals were investigated after intravenous infection. Results The retention time of CAS was 6.8 min. The calibration curve showed good linearity, and the precision and stability met the requirements of the assay. Transmission electron microscopy revealed that CAS-SLNs were spherical, with a particle size of （135.97±1.73） nm. The Zeta potential was （19.33±0.37） mV, drug loading was （7.55±0.68）%, and encapsulation efficiency was （67.71±1.74）%. CAS-SLNs showed significant in vitro antifungal inhibition with a MIC of 9.78×10⁻⁴ g/ml, which was significantly better than CAS group and the physical mixture group of CAS and GMS, as well as the same biofilm inhibition was observed （P<0.001）. Pharmacodynamic studies demonstrated that CAS-SLNs maintained stable body weight gain compared to the control （P<0.01） and CAS groups in Candida albicans invasive infection model, and that CAS-SLNs significantly reduced renal fungal burden load relative to the CAS group （P<0.05）. In vivo study revealed that a stable body weight was maintained in CAS-SLNs group compared to the control group （P<0.01） in Candida albicans invasive infection model. CAS-SLNs also significantly reduced renal fungal load compared to the CAS group （P<0.05）. Conclusion CAS-SLNs significantly enhanced the antifungal effects of CAS in vitro and in vivo, which provided a valuable insight for the research of new formulation of CAS.