Idsart Kingma



  1. Koopman A, Kingma I, Faber G, de Looze M, van Dieen J. Effects of a passive exoskeleton on the mechanical loading of the low back in static holding tasks. J Biomech. 2019;83:97-103 pubmed publisher
    ..These results indicate that flexion relaxation and its interindividual variation should be considered in future exoskeleton developments. ..
  2. Vergroesen P, Kingma I, Emanuel K, Hoogendoorn R, Welting T, van Royen B, et al. Mechanics and biology in intervertebral disc degeneration: a vicious circle. Osteoarthritis Cartilage. 2015;23:1057-70 pubmed publisher
  3. Emanuel K, Mader K, Peeters M, Kingma I, Rustenburg C, Vergroesen P, et al. Early changes in the extracellular matrix of the degenerating intervertebral disc, assessed by Fourier transform infrared imaging. Osteoarthritis Cartilage. 2018;26:1400-1408 pubmed publisher
    ..Changes due to mild overloading could be assessed and quantified. Matrix remodeling is the first detectable step towards intervertebral disc degeneration. ..
  4. Kingma I, Faber G, van Dieën J. Supporting the upper body with the hand on the thigh reduces back loading during lifting. J Biomech. 2016;49:881-889 pubmed publisher
    ..For compression forces, reductions (up to 28%) were seen in all techniques except in stoop lifts. It is concluded that leaning with a hand on the thigh can lead to substantial reductions of low back loading during lifting. ..
  5. Micó Amigo M, Kingma I, Ainsworth E, Walgaard S, Niessen M, van Lummel R, et al. A novel accelerometry-based algorithm for the detection of step durations over short episodes of gait in healthy elderly. J Neuroeng Rehabil. 2016;13:38 pubmed publisher
  6. Mahmood M, Peeters L, Paalman M, Verkerke G, Kingma I, van Dieën J. Development and evaluation of a passive trunk support system for Duchenne muscular dystrophy patients. J Neuroeng Rehabil. 2018;15:22 pubmed publisher
    ..The current study was approved by the medical ethics committee Arnhem-Nijmegen (study number: NL53143.091.15 ), The Netherlands. ..
  7. van de Bunt F, Emanuel K, Wijffels T, Kooren P, Kingma I, Smit T. A novel physiological testing device to study knee biomechanics in vitro. Knee. 2017;24:718-725 pubmed publisher
    ..The novel five-degrees-of-freedom knee system allows a detailed study of the effect of a diversity of defects and surgical treatments on knee biomechanics under physiological loading conditions. ..
  8. Vergroesen P, Emanuel K, Peeters M, Kingma I, Smit T. Are axial intervertebral disc biomechanics determined by osmosis?. J Biomech. 2018;70:4-9 pubmed publisher
    ..This suggests that besides the osmotic gradient, the permeability of the tissues determines healthy intervertebral disc biomechanics. ..
  9. Koopman A, Kingma I, Faber G, Bornmann J, van Dieen J. Estimating the L5S1 flexion/extension moment in symmetrical lifting using a simplified ambulatory measurement system. J Biomech. 2018;70:242-248 pubmed publisher
    ..In conclusion, while reasonable moment estimates can be obtained with 6 sensors, omitting the forearm sensors led to unacceptable errors. Furthermore, vertical GRF information is sufficient to estimate L5S1 moments in lifting. ..

More Information


  1. Emanuel K, van der Veen A, Rustenburg C, Smit T, Kingma I. Osmosis and viscoelasticity both contribute to time-dependent behaviour of the intervertebral disc under compressive load: A caprine in vitro study. J Biomech. 2018;70:10-15 pubmed publisher
    ..However, for restoration of the nucleus pressure and for full restoration of disc height, restoration of the osmotic gradient was needed. ..
  2. Kingma I, Busscher I, van der Veen A, Verkerke G, Veldhuizen A, Homminga J, et al. Coupled motions in human and porcine thoracic and lumbar spines. J Biomech. 2018;70:51-58 pubmed publisher
    ..The present results indicate that coupled motions were largest in the lumbar spine. In human spines, posterior elements only contributed to coupled motions in lumbar axial rotation loading. ..
  3. Emanuel K, Kingma I, Helder M, Smit T. Response to: 'A dose-response relationship between severity of disc degeneration and intervertebral disc height in the lumbosacral spine'. Arthritis Res Ther. 2016;18:41 pubmed publisher