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OpenTrials
Completed

NCT Number: NCT05794854

Spot Reduction in Male Adults

Spot reduction, referring to local body fat reduction, pertains to subcutaneous adipose tissue utilization from specific body parts during exercise. Its existence has been keenly debated, although generally accepted not to occur during exercise. However, it is based on not only equivocal data - commonly the training protocol typically applied is based on strength rather than endurance training. The investigators sought to test this assumption by utilizing endurance based exercise controlling for energy expenditure and using dual x-ray absorptiometric measures to assess body composition before and after training.

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Key information

Conditions

Healthy

Age range

30 year–60 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • males
  • ≥ 30 years old
  • classified as overweight (Body mass index ≥ 25 kg ∙ m-2)
  • not participating in regular physical training

Exclusion criteria

  • < 30 years old
  • Body mass index < 25 kg ∙ m-2
  • participating in regular physical training

Treatment and study plan

Abdominal aerobic endurance exercise

Other

Subjects combined treadmill running at 70% HRmax (27 minutes) with 4x4minutes (30-40% maximal strength, 1RM) of torso rotation and abdominal crunches (57 minutes), 4 days per wk for 10 weeks

Control training intervention

Other

Subjects performed treadmill running (45 minutes) at 70% HRmax 4 days per week for 10 weeks

Primary outcomes

  1. Trunk fat mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Fat mass located in trunk (g) measured by dual-energy x-ray absorptiometry

Secondary outcomes

  1. Lower extremity fat mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Fat mass located in lower extremities (g) measured by dual-energy x-ray absorptiometry

  2. Upper extremity fat mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Fat mass located in upper extremities (g) measured by dual-energy x-ray absorptiometry

  3. Total fat mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Total fat mass (g) measured by dual-energy x-ray absorptiometry

  4. Body weight change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

  5. Body mass index change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

  6. Waist circumference (cm) change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

  7. Hip circumference (cm) change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

Other outcomes

  1. Trunk lean mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Lean mass located in trunk (g) measured by dual-energy x-ray absorptiometry

  2. Lower extremity lean mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Lean mass located in lower extremities (g) measured by dual-energy x-ray absorptiometry

  3. Upper extremity lean mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Lean mass located in upper extremities (g) measured by dual-energy x-ray absorptiometry

  4. Total lean mass change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Total lean mass (g) measured by dual-energy x-ray absorptiometry

  5. Maximal oxygen uptake change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    Maximal oxygen uptake by cardiopulmonary indirect calorimetry

  6. Maximal muscle strength change

    Time frame: Change from pre (baseline) to post test (after 10 weeks)

    One-repetition maximum (kg) in torso rotation and abdominal crunch

Sponsors and collaborators

Lead sponsor

Molde University College

Other

Collaborators

  • Norwegian University of Science and Technology

Registry information

Official study title

The Assessment of Spot Reduction in Adults Males Following Endurance Training

Important dates

Study start
2005
Primary completion
2006
Study completion
2006
First posted
Apr 3, 2023
Registry last updated
Apr 3, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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