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Table 3 Subgroup-specific peak accelerations (given as mean ± standard deviation)

From: ‘Falling heads’: investigating reflexive responses to head–neck perturbations

  Age groups Sex
22–24 years 36–51 years 63–71 years Male Female
Peak lin. acc., supine − 0.75 ± 0.1 g  0.79 ± 0.1 g − 0.66 ± 0.2 g − 0.71 ± 0.2 g − 0.77 ± 0.1 g
Time to peak lin. acc., supine 45.8 ± 2.5 ms 43.6 ± 2.9 ms 41.4 ± 2.7 ms 42.2 ± 2.9 ms 45.2 ± 2.7 ms
Peak rot. acc., supine 67.7 ± 6.0 rad/s2 64.3 ± 5.6 rad/s2 50.3 ± 13.8 rad/s2 57.2 ± 13.5 rad/s2 66.0 ± 6.2 rad/s2
Time to peak rot. acc., supine 52.7 ± 7.6 ms 53.7 ± 13.7 ms 48.8 ± 4.4 ms 49.3 ± 5.9 ms 54.1 ± 11.2 ms
Peak lin. acc., prone − 0.43 ± 0.3 g − 0.51 ± 0.2 g − 0.62 ± 0.2 g − 0.65 ± 0.2 g − 0.40 ± 0.2 g
Time to peak lin. acc., prone 36.7 ± 1.9 ms 35.6 ± 2.1 ms 37.0 ± 2.2 ms 36.4 ± 2.6 ms 36.4 ± 1.7 ms
Peak rot. acc., prone 38.7 ± 20.2 rad/s2 43.5 ± 13.7 rad/s2 53.0 ± 17.4 rad/s2 54.7 ± 14.5 rad/s2 36.1 ± 15.3 rad/s2
Time to peak rot. acc., prone 54.0 ± 10.3 ms 63.8 ± 6.1 ms 55.6 ± 12.7 ms 58.5 ± 9.9 ms 57.4 ± 10.8 ms