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Resumo

Submaximal exercise tests were carried out on 197 females and 290 males from five populations in the Solomon Islands to determine how acculturation affects the fitness of different age and sex groups. Males and females in the least acculturated group show the highest fitness levels, reflecting strenuous work patterns. Subjects from the most acculturated groups exhibit the lowest levels of fitness, a consequence of their more sedentary life‐styles. Unexpectedly, older females in these groups show exercise capacities that are equal to those of younger women. This may be a consequence of generational differences in the practice of traditional activities, such as those associated with gardening. Groups ranked intermediate in acculturation show variable patterns. For some age and sex groups, modernization has reinforced and even intensified strenuous activity patterns, resulting in high levels of fitness. For others, modernization has promoted inactivity and/or altered dietary patterns, resulting in increased body fat and low levels of fitness.

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