Title |
Long Maximal Incremental Tests Accurately Assess Aerobic Fitness in Class II and III Obese Men
|
---|---|
Published in |
PLOS ONE, April 2015
|
DOI | 10.1371/journal.pone.0124180 |
Pubmed ID | |
Authors |
Stefano Lanzi, Franco Codecasa, Mauro Cornacchia, Sabrina Maestrini, Paolo Capodaglio, Amelia Brunani, Paolo Fanari, Alberto Salvadori, Davide Malatesta |
Abstract |
This study aimed to compare two different maximal incremental tests with different time durations [a maximal incremental ramp test with a short time duration (8-12 min) (STest) and a maximal incremental test with a longer time duration (20-25 min) (LTest)] to investigate whether an LTest accurately assesses aerobic fitness in class II and III obese men. Twenty obese men (BMI≥35 kg.m-2) without secondary pathologies (mean±SE; 36.7±1.9 yr; 41.8±0.7 kg*m-2) completed an STest (warm-up: 40 W; increment: 20 W*min-1) and an LTest [warm-up: 20% of the peak power output (PPO) reached during the STest; increment: 10% PPO every 5 min until 70% PPO was reached or until the respiratory exchange ratio reached 1.0, followed by 15 W.min-1 until exhaustion] on a cycle-ergometer to assess the peak oxygen uptake [Formula: see text] and peak heart rate (HRpeak) of each test. There were no significant differences in [Formula: see text] (STest: 3.1±0.1 L*min-1; LTest: 3.0±0.1 L*min-1) and HRpeak (STest: 174±4 bpm; LTest: 173±4 bpm) between the two tests. Bland-Altman plot analyses showed good agreement and Pearson product-moment and intra-class correlation coefficients showed a strong correlation between [Formula: see text] (r=0.81 for both; p≤0.001) and HRpeak (r=0.95 for both; p≤0.001) during both tests. [Formula: see text] and HRpeak assessments were not compromised by test duration in class II and III obese men. Therefore, we suggest that the LTest is a feasible test that accurately assesses aerobic fitness and may allow for the exercise intensity prescription and individualization that will lead to improved therapeutic approaches in treating obesity and severe obesity. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Switzerland | 4 | 57% |
Luxembourg | 1 | 14% |
Slovenia | 1 | 14% |
Unknown | 1 | 14% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 5 | 71% |
Practitioners (doctors, other healthcare professionals) | 1 | 14% |
Scientists | 1 | 14% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 47 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 11 | 23% |
Student > Ph. D. Student | 7 | 15% |
Lecturer | 4 | 9% |
Student > Doctoral Student | 3 | 6% |
Student > Master | 3 | 6% |
Other | 4 | 9% |
Unknown | 15 | 32% |
Readers by discipline | Count | As % |
---|---|---|
Sports and Recreations | 14 | 30% |
Nursing and Health Professions | 6 | 13% |
Biochemistry, Genetics and Molecular Biology | 4 | 9% |
Medicine and Dentistry | 2 | 4% |
Computer Science | 1 | 2% |
Other | 1 | 2% |
Unknown | 19 | 40% |