The main purpose of the present meta-analysis was to examine the scientific literature on the criterion-related validity of sit-and-reach tests for estimating hamstring and lumbar extensibility. For this purpose relevant studies were searched from seven electronic databases dated up through December 2012. Primary outcomes of criterion-related validity were Pearson´s zero-order correlation coeff...

Promotiecommissie Promotor: Contents Chapter 1 Introduction and Outline 7 Chapter 2 Determinants of the sit-to-stand movement: a review 15 Chapter 3 Analysis and decomposition of accelerometric signals of trunk and thigh obtained during the sit-to-stand movement 33 Chapter 4 Validity of accelerometry in assessing the duration of the sit-to-stand movement 49 Chapter 5 Sensitivity of accelerometr...

Serum immunoreactive trypsin (SIT) concentrations measured in 616 children with diabetes of recent onset were low, in both boys and girls, in comparison with reference ranges established in patients with non-diabetic, non-infectious illnesses. The mean SIT concentration was 60% of the mean reference level in children tested within three weeks of the onset of diabetes, and about 40% in patients ...

SIT is a transmembrane adapter protein that modulates signals emanating from the T-cell receptor (TCR). Here, we have used gene-targeted mice to assess the role of SIT for T-cell development and peripheral T-cell functions. SIT(-/-) double-positive thymocytes show an upregulation of the activation markers CD5 and CD69, suggesting that SIT negatively regulates TCR-mediated signals at the CD4(+) ...

INTRODUCTION A significant number of non-institutionalized older adults have difficulty rising from a chair [1]. Although there exist several assistive devices to aid with sit to stand, there is a lack of research that compares and analyzes various modes of assisted sit to stand to characterize their relative effectiveness in terms of biomechanical metrics. This research advances our understand...