Trial reportEuropean journal of applied physiology2016
The impact of thoracic load carriage up to 45 kg on the cardiopulmonary response to exercise.
Trial report in European journal of applied physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
7 citing papers in PubMed, 24 citations in OpenAlex.
- Rehabilitating Soldiers for Load Carriage Tasks: An International Perspective.International journal of environmental research and public health · 2025Review
- Performance with an additional load: formula-based predictions for controlling the load intensity when carrying backpacks.BMC sports science, medicine & rehabilitation · 2025Article
- Thoracic load carriage impairs the acute physiological response to hypoxia in healthy males.Physiological reports · 2025Article
- Graded exercise test with or without load carriage similarly measures maximal oxygen uptake in young males and females.PloS one · 2021Article
- Ventilatory responses in males and females during graded exercise with and without thoracic load carriage.European journal of applied physiology · 2019Article
- Respiratory Effects of Thoracic Load Carriage Exercise and Inspiratory Muscle Training as a Strategy to Optimize Respiratory Muscle Performance with Load Carriage.Springer science reviews · 2017Article
- The effect of temperature, gradient, and load carriage on oxygen consumption, posture, and gait characteristics.European journal of applied physiology · 2017Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe purposes of this experiment were to, first, document the effect of 45-kg thoracic loading on peak exercise responses and, second, the effects of systematic increases in thoracic load on physiological responses to submaximal treadmill walking at a standardized speed and grade.
methodsOn separate days, 19 males (age 27 ± 5 years, height 180.0 ± 7.4 cm, mass 86.9 ± 15.1 kg) completed randomly ordered graded exercise tests to exhaustion in loaded (45 kg) and unloaded conditions. On a third day, each subject completed four randomly ordered, 10-min bouts of treadmill walking at 1.34 m s(-1) and 4 % grade in the following conditions: unloaded, and with backpacks weighted to 15, 30, and 45 kg.
resultsWith 45-kg thoracic loading, absolute oxygen consumption ([Formula: see text]), minute ventilation, power output, and test duration were significantly decreased at peak exercise. End-inspiratory lung volume and tidal volume were significantly reduced with no changes in end-expiratory lung volume, breathing frequency, and the respiratory exchange ratio. Peak end-tidal carbon dioxide and the ratio of alveolar ventilation to carbon dioxide production were similar between conditions. The reductions in peak physiological responses were greater than expected based on previous research with lighter loads. During submaximal treadmill exercise, [Formula: see text] increased (P < 0.05) by 11.0 (unloaded to 15 kg), 14.5 (15-30 kg), and 18.0 % (30-45 kg) showing that the increase in exercise [Formula: see text] was not proportional to load mass.
conclusionThese results provide further insight into the specificity of physiological responses to different types of load carriage.
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