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Isokinetic Testing Protocol in Elderly and Young Men

U

University of Brasilia

Status

Completed

Conditions

Healthy

Treatments

Device: Isokinetic Dynamometer (Biodex system III)

Study type

Interventional

Funder types

Other

Identifiers

NCT00673998
UCB-072/2004

Details and patient eligibility

About

An age-related decrease in muscular strength may have a detrimental effect on muscle fatigue and recovery. To date, only one study has determined the effect of varied rest intervals (RI) between exercise sets in active younger and older women. They reported that active younger and older women require similar RI between sets to recovery full isokinetic knee extension peak torque (PT). However, we are unaware of any published studies comparing RI PT recovery between younger and older men. Thus, the purpose of this study was to compare the effect of two different RI's between sets of isokinetic knee extension exercise on PT, and Total Work (TW) between untrained younger and older men.

Full description

18 young men (24.22 ± 2.58 yrs) and 20 older men (66.85 ± 4.02 yrs) performed 3 sets of 10 unilateral isokinetic knee extension repetitions at 60°/s. The rest intervals between sets were 1 and 2 minutes and were counterbalanced across 2 testing days, separated by a minimum of 48 hours. The work-to-rest ratio was 1:3 and 1:6. All subjects were not involved in exercise programs that included resistance exercises within the last 6 months. Statistical evaluation of the data was performed using a 2x 2 x 3 mixed factor repeated measures ANOVA [age (younger and older) x rest interval (1 and 2 min) x set (1st, 2nd, and 3rd)]. Statistical significance was set at p < 0.05 for all comparisons.

Enrollment

38 patients

Sex

Male

Ages

20 to 75 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Less than 75 years
  • Independent

Exclusion criteria

  • History of cardiovascular disease
  • Hypertension
  • Orthopedic disease

Trial design

Primary purpose

Diagnostic

Allocation

Randomized

Interventional model

Single Group Assignment

Masking

None (Open label)

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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