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Updated: Mar 23, 2026
Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People
Published on: July 5, 2017
The Acute Effects of Eccentrically-Biased Versus Conventional Weight Training in Older Adults: A Randomised
I Selva Raj1, B A Westfold, A J Shield
1Professor Stephen Bird, Royal Melbourne Institute of Technology University, Health Innovations Research Institute and School of Medical Sciences, Bundoora West Campus, PO Box 71, Bundoora, Victoria 3083, Australia, Phone: +(61 3) 9925 7257,
Background:
Whilst resistance training has been proven to convey considerable benefits to older people; immediately post-exercise there may be elevated transient risks for cardiac events and falls. Objectives and Measurements: We assessed the acute effects of eccentrically-biased (EB) and conventional (CONV) resistance exercise on: platelet number, activation and granule exocytsosis; and mean velocity of centre of pressure displacement (Vm).
Design, Setting, Participants And Intervention:
Ten older adults (7 males, 3 females; 69 ± 4 years) participated in this randomised controlled cross-over study in which they performed EB and CONV training sessions that were matched for total work and a control condition.
Results:
Immediately post-exercise there was a statistically significant difference in platelet count between the control condition, in which it had declined (pre 224 ± 35 109/L; post 211 ± 30 109/L: P < 0.05) and CONV in which it had increased (pre 236 ± 55 109/L; post 242 ± 51 109/L: P > 0.05). There was no change in platelet activation and granule exocytsosis or Vm following EB and CONV.
Conclusions:
Overall, while minor differences between regimens were observed, no major adverse effect on parameters of platelet function or centre of pressure displacement were observed acutely following either regimen. Eccentrically-biased and conventional resistance exercise training regimens do not appear to present an elevated acute risk in the context of changes to platelet function contributing to a cardiac event or postural stability increasing falls risk for apparently healthy older adults.
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