Acute Effects of Low and High-Speed Resistance Training on Blood Pressure in Older Adults: A Crossover Study

University of Campinas, Brazil

Status: Completed

Conditions: Frailty; Blood Pressure

Treatments: Other: Exercise

Study type: Interventional

Funder types: Other

Identifiers

NCT05310006

20021919

Details and patient eligibility

About

The first study was a randomized crossover trial that compared the acute effects of High Speed Resistance Exercise (HSRE) and Traditional Resistance Exercise (TRE) on blood pressure parameters in a sample of frail older adults. Participants performed three experimental sessions (i.e., HSRE, TRE, and a control session [CS]) in a random order and separated from one another by seven days (standard deviation [±] 1 day). Food consumption was maintained constant during 48 h prior to the exercise session and a standard breakfast was offered 60-90 min before the beginning of the experimental sessions. The pharmacological therapy was kept constant during the whole study, and participants took their anti-hypertensive medication at the same time in all experimental days as prescribed by their physician.

Enrollment: 16 patients

Sex: All

Ages: 60+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Aged ≥60 years; Frail according to Fried's criteria (Fried et al., 2009); Possessed sufficient physical and cognitive abilities to perform all exercises required by the protocol; Had a physician authorization to participate of exercise programs.

Exclusion criteria

Participation in a structured physical exercise training program in the past six months; Prescription of hormone replacement therapy and/or psychotropic drugs; Presence of any acute cardiovascular event (e.g., myocardial infarction) or complication in the past six months.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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16 participants in 3 patient groups

High Speed Resistance Exercise (HSRE)

Experimental group

Description:

Exercise sessions performed using eight times (sets) with 4-5 repetitions at 70-75% of the maximal strength. The concentric phase was performed as fast as possible, and the eccentric phase was carried out for 2 s.

Treatment:

Other: Exercise

Traditional Resistance Exercise (TRE)

Experimental group

Description:

Exercise sessions were performed using four sets of 8-10 repetitions at 70-75% of the maximal strength. The concentric and eccentric phases were carried out for 2 s.

Treatment:

Other: Exercise

Control Session (CS)

No Intervention group

Description:

Participants remained seated in a comfortable chair listening to music and/or talking with study investigators for approximately 30 min.