Associations of physical activity types and intensity with cardiovascular diseases by age and gender among 18,730 Chinese adults.

The associations of physical activity (PA) intensity and types with CVD (cardiovascular diseases) in different population are inconsistent and remains not very clear. A total of 7854 males and 10,876 females over 15 years were selected by multistage random sampling methods. In males, moderate-intensity physical activity (MPA) had no effect, while vigorous-intensity physical activity (VPA) played a significant protective role (OR = 1.319 and 0.615). However, in females, both MPA and VPA had significant protective effects (OR = 0.593 and 0.537). VPA presented as a significant protective factor in stroke patients and combined CVDs for males in all age groups; however, in females, the results suggested that, for those aged over 60-74 years, MPA was a protective factor. Furthermore, for the middle-aged or younger participants, the area under the curves (AUCs) of work, housework, and leisure activity were generally higher than that of other types, while for patients aged over 60 years, the AUCs of sedentary time and sleep activity seemed much higher. VPA had a better protective effect for preventing cardiovascular events, while the young and female population could benefit from MPA as well. Regardless of the types of PA, leisure activities were strongly recommended, and young people were much more likely to benefit from exercise than older people.

An Age-Stratified Cross-Sectional Study of Physical Activity and Exercise Adherence of Stroke Survivors in Rural Regions.

Objective: To describe the Physical Activity and Exercise (PAE) adherence of stroke survivors in rural regions, additionally, to analyze the influential factors through age stratification. Methods: This is a cross-sectional study. Totally, 596 stroke patients (65.70±10.76 years) from three rural regions were selected, PAE scale was used for measuring compliance. The influential factors among different age groups were explored separately. This study adheres to the EQUATOR checklist, SROBE. Results: Only 17.8% (106) of participants regularly participated in PAE. Altogether, 42.45% were classified as a young-middle age group, and the rest 57.55% were in the old age group. Positive attitudes and better PAE-relevant knowledge were protective factors for adherence in the young and middle-aged group (OR=0.683; 95% CI 0.173~0.588 and OR=0.939; 95% CI 0.013~0.114), as well as in the old group (OR=0.704; 95% CI 0.193~0.534 and OR=0.929; 95% CI 0.035~0.118); having no home rehabilitation equipment was a strong risk factor for younger patients (OR=16.078; 95% CI 1.235~4.320); however, without hemiplegia can positively affect their adherence (OR=0.891; 95% CI 0.045~0.229). In addition, the presence of a spouse can lead to a better compliance among old patients (OR=0.436; 95% CI -0.496~-0.165). Conclusion: It is necessary to improve the knowledge of physical activity in rural stroke patients of all ages. It is of great significance to install home rehabilitation equipment to promote exercise for young and middle-aged stroke patients. While for the old stroke patients, we strongly suggest focusing on the role of spouses, which would be more useful in low-income regions.

Interaction mechanism between location and sequence in letter cognition.

A previous study used days as a sequence symbol to investigate the interaction mechanism between location and sequence in sequence symbol cognition; the study findings suggested that the spatial stimulus-response compatibility effect and the Simon effect could not co-exist with the SNARC-like effect when processing sequence symbols. The previous study did not include the influence of the difficulty of identifying sequence symbols on the Simon effect in the investigation, so it is unclear whether the conclusion about processing sequence symbols with considerable identification difficulty can be extended to the processing of sequence symbols with less identification difficulty. Therefore, the present study explored letters that have a low level of identification difficulty to investigate the interaction mechanism between location and sequence in sequence symbol cognition. Participants were asked to classify a probe letter, which was randomly displayed on the left or right side of the screen, according to its location (Experiment 1), its sequence (Experiment 2) or its colour (Experiment 3). The results indicated that (1) only the spatial stimulus-response compatibility effect and Simon effect were present in the letter location classification task and letter colour classification task, respectively. (2) The Simon effect co-existed with the SNARC-like effect, and these two effects interacted with each other in the letter sequence classification task. From these results, it can be concluded that the task determines whether the Simon effect and the SNARC-like effect can co-exist, with differences presented across sequence symbols.