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Eccentric Exercise Program Design: A Periodization Model for Rehabilitation Applications.

Michael O Harris-Love1, Bryant A Seamon2, Tomas I Gonzales3

  • 1Muscle Morphology, Mechanics and Performance Laboratory, Clinical Research Center-Human Performance Research Unit, Veterans Affairs Medical CenterWashington, DC, USA; Geriatrics and Extended Care Service/Research Service, Veterans Affairs Medical CenterWashington, DC, USA; Department of Exercise and Nutritional Sciences, Milken Institute School of Public Health, The George Washington UniversityWashington, DC, USA.

Frontiers in Physiology
|March 11, 2017
PubMed
Summary
This summary is machine-generated.

This study presents a periodization model for eccentric strengthening in older adults, demonstrating its feasibility and safety. The model effectively managed exercise workload progression, showing improvements in strength and minimal pain during rehabilitation.

Keywords:
eccentric exerciseisokinetic exercisemuscle performancemuscle strengthperiodizationphysical therapyrehabilitation

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Area of Science:

  • Geriatric rehabilitation
  • Exercise physiology
  • Biomechanical analysis

Background:

  • Eccentric muscle actions are valuable in physical rehabilitation.
  • Periodization provides a framework for safe exercise introduction and workload management.
  • Older adults require tailored strengthening programs for effective rehabilitation.

Purpose of the Study:

  • To present a periodization model for isokinetic eccentric strengthening in older adults within an outpatient rehabilitation setting.
  • To describe the exercise prescription, familiarization, and workload progression.
  • To evaluate the feasibility and safety of the proposed model.

Main Methods:

  • A 12-week isokinetic eccentric strengthening regimen for knee extensors was implemented in 24 older men.
  • Feasibility and safety were assessed using Visual Analog Scale (VAS) for pain and changes in mean eccentric power.
  • Torque-time curve analysis characterized motor learning, and total work analyzed training plateaus.

Main Results:

  • The periodization model facilitated a significant increase in exercise workload (70% to 141% of peak torque) and total work (185%).
  • Mean VAS pain scores remained low (2.9 ± 2.7 at start, 2.6 ± 2.9 at end).
  • Mean power generation increased by 25% with increased velocity (60°s⁻¹ to 90°s⁻¹).

Conclusions:

  • The proposed periodization model is feasible and safe for isokinetic eccentric strengthening in older adults in outpatient settings.
  • The model effectively manages workload progression and facilitates strength gains.
  • Future models may incorporate cyclic higher velocities and active recovery periods.