Interindividual Postexercise Hypotension Response in Morbid Obesity
Condition: Metabolic Syndrome; Morbid Obesity
MeSH terms: Post-Exercise Hypotension; Hypotension; Obesity; Metabolic Syndrome; Obesity, Morbid
Study type: Interventional

Summary: 
      A quasi-experimental study developed in sedentary morbidly obese men and women (age 43.6±11.3
      y; body mass index [BMI] ≥40 kg/m2) were assigned to a CT group of ET plus RT (ET+RT; n=19;
      BMI 47.8±16.7) or RT plus ET order group (RT+ET; n=17; BMI 43.0±8.0). Subjects of both groups
      received eight exercise sessions over four weeks. Systolic (SBP), diastolic (DBP), mean
      arterial pressure [MAP], heart rate at rest [HR], and pulse pressure [PP] measurements before
      and after 10 minutes postexercise. Secondary outcomes were other anthropometric, body
      composition, metabolic, and physical condition parameters. Using the ∆SBP reduction, and
      quartile categorization (Q) in 'high' (Rs: quartile 4), 'moderate' (MRs: quartile 3), 'low'
      (LRs: quartile 2), and 'nonresponders' (NRs: quartile 1) were reported.
    

Detailed description: 
      Independent of the order (i.e., ET+RT, or RT+ET), each CT session had two sections; RT and
      ET, which were applied two days per week, during 8 sessions (4 weeks), and where the blood
      pressure changes were measured only in four opportunities (i.e., once a week in sessions 2,
      4, 6, and 8). Thus, the CT included in each session 3 stages; a) callisthenics exercises, b)
      main exercise (ET+RT or RT+ET), and c) cool down exercises.

      Before the starting, the participants were involved in the maximum strength capacity
      estimated using a submaximal test based on the Brzycki's equation: weight
      [1.0278-(0.0278*repetitions)] that does not change based on the sex, age of the population,
      or the exercise modality that is performed (Mayhew et al., 2004). After this procedure, there
      were applied 4 familiarization sessions that consisted in; session 1: 'knowledge of all
      measurements', 'knowledge of exercise-machine manipulation', and 'instructions during the
      exercise program', session 2: 'exercising during cycling', 'weights, and metal bars', session
      3: 'applying a few of exercises of RT in 2 to 3 sets of exercises, to know the configuration
      of each exercise (i.e., ET and RT regimes itself), and session 4: 'applying the 50 to 70% of
      their CT program' corresponding to a normal session compound. In the 'calisthenic stage',
      each subject developed 10 minute warm-up with continuous walking, joint mobility and
      flexibility exercises. In the 'main part' of the session, and independent of the CT order
      group (ET+RT or RT+ET), the ET section consisted of continuous cycling using a magnetic
      resistance static bicycle (OxfordTM Fitness, model BE-2701, Chile) for 20 minutes. The
      intensity of the ET exercise was regulated through the previously used modified Borg scale
      from 1 to 10 rating of perceived exertion (Gillen et al., 2013) and the participants worked
      at a level between 5 to 7 points (i.e., moderate-intensity), considering the original 6 to 20
      points scale (Borg, 1998), being the subjects regularly controlled to not exceed this
      intensity restriction. On the other hand, the RT section included 8 to 12 muscle strength
      exercises of circuit training with the following different muscle groups: (1) forearm, (2)
      knee flexors and extensors, (3) trunk, (4) chest, (5) shoulder elevators, (6) horizontal
      shoulder flexors, (7) extensors, and finally (8) plantar flexors. These exercises were
      performed in one set in a continuous concentric/eccentric voluntary contraction as possible
      for 60 seconds, followed by 60 to 90 seconds of passive recovery, where each participant was
      changed to another exercise. The RT section was of 25 minutes in duration time.
    

Intervention name(s): Concurrent training order 1; RT+ET
Intervention type(s): Behavioral; Behavioral
Intervention description(s): atag; aetaer
Other intervention name(s): Exercise training; Concurrent training order 2
Allocation: Non-Randomized
Intervention model: Crossover Assignment
Masking: Single (Participant)
Primary purpose: Treatment