BJOG : an international journal of obstetrics and gynaecology
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To study the association of age at menarche with presence of pelvic girdle syndrome in pregnancy. ⋯ Early menarche was associated with increased prevalence of pelvic girdle syndrome in pregnancy. Factors associated with early menarche may play a role in the development of pelvic girdle pain.
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To obtain face and construct validity for a new training course to be used in any type of box/video trainer and to give a comprehensive overview of validated exercises for box/video training. ⋯ Face and construct validity for an inexpensive course for box/video training was established. A comprehensive and practical overview of all validated and published exercises for box/video trainers is provided to facilitate an inexpensive, but optimal and tailored selection for training purposes.