scholarly journals Standards for the predictive accuracy of short term body height and lower leg length measurements on half annual growth rates.

1989 ◽  
Vol 64 (2) ◽  
pp. 259-263 ◽  
Author(s):  
M Hermanussen ◽  
J Burmeister
Author(s):  
S.F. Ahmed ◽  
W.H.B. Wallace ◽  
P.M. Crofton ◽  
B. Wardhaugh ◽  
R. Magowan ◽  
...  

1989 ◽  
Vol 40 (6) ◽  
pp. 703 ◽  
Author(s):  
RICC Francis ◽  
RH Winstanley

Data on recaptured fish from two tagging experiments on south-east Australian snapper, Chrysophrys auratus, were analysed: 198 fish released in several Victorian locations between 1956 and 1962, and 118 fish released in Port Phillip Bay in 1971 and 1972. Movement data from both experiments were used to classify the fish into habitats (oceanic and bay) and stocks (western and eastern). Length increment data from the earlier experiment indicate that the major growth-rate differences in south-east Australian snapper lie within the western stock (between oceanic and bay habitats) rather than between stocks as suggested by an earlier analysis of the same data. The annual growth rates of 20-30-cm snapper in Port Phillip Bay and Western Port are 17-20% higher than for fish in the ocean. Oceanic growth rates in the western stock appear to be lower than those in the eastern stock. Procedural differences in length measurements at tagging and recapture can introduce a net bias in the length increment that, if ignored (as is conventional in tagging growth models), will bias growth rate estimates. In the earlier tagging experiment, this is shown to have caused a 10% positive bias in growth rate estimates.


1996 ◽  
Vol 23 (2) ◽  
pp. 159-162 ◽  
Author(s):  
S.F. Ahmed ◽  
B.W. Wardhaugh ◽  
J. Duff ◽  
W.H.B. Wallace ◽  
C.J.H. Kelnar

1997 ◽  
Vol 48 (2) ◽  
pp. 72-75 ◽  
Author(s):  
S.F. Ahmed ◽  
S.I. Barnes ◽  
W.H.B. Wallace ◽  
C.J.H. Kelnar

1985 ◽  
Vol 109 (2) ◽  
pp. 163-168 ◽  
Author(s):  
M. Hermanussen ◽  
Karin Geiger-Benoit ◽  
W. G. Sippell

Abstract. A novel and non-invasive technique of growth measurement is introduced. By this method the length of the human lower leg is measured with an accuracy of 0.1 mm. Thus, growth velocities can be estimated within a few weeks. In the present study the immediate changes of growth velocity are demonstrated, following the transfer of growth hormone administration from three times weekly im to daily sc in 9 growth hormone deficient children, age 7.4 to 20.5 years. The first observation period (3 times weekly im administration) ranged from 32 to 72 days, the second observation period (daily sc administration) ranged from 160 to 267 days). During the study, the total weekly dosage of growth hormone remained unchanged (12 IU/m2/week). In all 9 patients growth velocity increased significantly after the transfer of application. Mean growth velocity of the lower leg rose from 0.04 mm/day up to 0.065 mm/day. Mean growth velocity of total body height rose form 4.8 cm/year up to 6.9 cm/year. In addition, differential lower leg growth rates of 3 to 4 week periods were established in all 9 patients, revealing a significant catch-up growth spurt immediately following the transfer of application. During this spurt mean lower leg growth velocity rose form 0.04 mm/day up to 0.091 mm/day. This marked increase of lower leg growth rates lasted for only a few weeks and was followed by a period of decreased growth velocity. On the long run, growth velocity shifted upward in a wave-like pattern, stabilizing on a significantly higher level than before the transfer of application.


2020 ◽  
Vol 77 (5) ◽  
pp. 399-403
Author(s):  
Arusa Maqsood ◽  
Daniel J. Naumenko ◽  
Michael Hermanussen ◽  
Christiane Scheffler ◽  
Detlef Groth

Author(s):  
Dorothy Taylor ◽  
Janice Morse ◽  
Andrew Merryweather

Elderly patient falls are expensive and may cause serious harm. Studies have identified the sit-to-stand-and-walk (STSW) task as the task where the greatest number of elderly patient falls occur. There is a great need to identify the particular movement and environmental conditions that lead to these elderly patient falls. This study begins to address this gap by evaluating the elderly patient during self-selected hospital bed egress. Using an observed fall risk episode (FRE) as a fall proxy, statistically significant parameters were identified which include bed height, pausing prior to initiating gait, level of fall risk, and Stand phase. Low bed height was identified as the least safe bed height. Patient-specific bed height (PSBH) using the patient’s lower leg length (LLL) is recommended. In addition, suggested guidelines are presented for clinical application in setting PSBH without measuring the patient’s LLL.


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