Quantitative Weight Bearing and non-weight Bearing Measures of Stiffness in the Achilles Tendon and Gastrocnemius Muscle
Ericson Morgan, G.
MetadataShow full item record
Objectives. To establish quantitative values of stiffness for the Achilles tendon (AT) and Gastrocnemius muscle (GM) in participants weight bearing and non-weight bearing. Methods. Measurements of 25 participants taken bilaterally at 8 points along the AT, and 2 points at the GM included: Natural Oscillation frequency (F), dynamic stiffness (S), mechanical stress relaxation time (R), logarithmic decrement (D) and creep (C) were taken non-weight bearing (NWB) and weight bearing (WB) using the MyotonPRO. Results. Median WB F scores were significantly higher than NWB F scores. D was significantly (P<0.005) higher NWB than WB for both AT and GM. S decreased from point 1 to point 8. GM S measurements were significantly (P<0.005) higher WB to NWB. C increased along course of tendon in the NWB condition and was significantly (P<0.005) higher at the GM. R was significantly (P<0.005) higher in the NWB condition for the AT and GM. R incrementally increased along the course of the AT in both NWB and WB conditions. Conclusions. There was an overall increased stiffness of the AT and GM during the weight bearing condition compared to the non-weightbearing condition. Further studies are required to develop a robust clinical application of this technology.
Muscles, Ligaments and Tendons Journal;
Morgan, G.E., Martin, R., Welch, H. and Morris, K. (2020) 'Quantitative Weight Bearing and non-weight Bearing Measures of Stiffness in the Achilles Tendon and Gastrocnemius Muscle', Muscles, Ligaments & Tendons Journal, 10(1).
Article published in Muscles, Ligaments and Tendons Journal on 01 March 2020, available open access at: https://doi.org/10.32098/mltj.01.2020.14.
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
This project was supported by Research & Development at Cwm Taf University Health Board.
Showing items related by title, author, subject and abstract.
Gill, Alex (University of Wales, 2011-10-25)The contractile history of skeletal muscle has been shown to have a significant effect upon subsequent performance. (postactivation potentiation, PAP). However, the effects of different types of conditioning stimulus on ...
Rowley, Samantha (University of Wales Institute Cardiff, 2010)Background: The concurrent increase in food portion sizes and obesity levels suggests a need for increased public awareness of appropriate portions. Recent research has investigated the potential for quantitative guidance ...
Davies, Chelsey Amber (2013)Background: Weight has become a great concern to many (Brownell, 2005), with research highlighting not only the physical dangers of being overweight, but also the psychological and social hazards (Puhl & Brownell, 2001). ...