Rectifications

Human Movement North-Holland

97

Science 8 (1989) 97

RECTIFICATIONS

H.J. Woltring, On optimal smoothing and derivative estimation from noisy displacement data in biomechanics. Human Movement Science, Vol. 4, no. 3 (1985), pp. 229-245. Please see pp. 235-236,

figs. I-3.

The time scale in figs. 1-3 is wrong by a factor 10. The time should be running from 0 to 0.48 set, in 0.04 set increments.

P.J. Beek and W.J. Beek, Tools for constructing dynamical models of rhythmic movement. Human Movement Science, Vol. 7, no. 2-4 (1988), pp. 301-342. Please see pp. 334-338,

formulae

of section 4.2 on Pearson’s method.

The left-hand side of eq. (4.6b) should read Ad instead eq. (4.6d) should be:

xe= (1/2T)i27j[x cos(t

+ S), -A

of i0. Hence,

sin(t + 19)]

x sin(t + 8) cos(t + 8) dt, and wherever d has been used in the examples of section 4.2 it should be read as Ati. In table 4c (referring to the r-mix odd-series) c+‘$ has to be c@#?.

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