Trial reportJournal of applied physiology (Bethesda, Md. : 1985)2009
Interaction between muscle temperature and contraction velocity affects mechanical efficiency during moderate-intensity cycling exercise in young and older women.
Trial report in Journal of applied physiology (Bethesda, Md. : 1985), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
11 citing papers in PubMed.
- Menthol Mouth Rinsing Maintains Relative Power Production during Three-Minute Maximal Cycling Performance in the Heat Compared to Cold Water and Placebo Rinsing.International journal of environmental research and public health · 2022Trial
- Impact of 5-aminolevulinic acid with iron supplementation on exercise efficiency and home-based walking training achievement in older women.Journal of applied physiology (Bethesda, Md. : 1985) · 2016Trial
- Leg cycling efficiency is unaltered in healthy aging regardless of sex or training status.Journal of applied physiology (Bethesda, Md. : 1985) · 2024Article
- Cycling efficiency and energy cost of walking in young and older adults.Journal of applied physiology (Bethesda, Md. : 1985) · 2018Article
- High-intensity interval training improves performance in young and older individuals by increasing mechanical efficiency.Physiological reports · 2017Article
- Effects of Pedal Speed and Crank Length on Pedaling Mechanics during Submaximal Cycling.Medicine and science in sports and exercise · 2016Article
- Age difference in efficiency of locomotion and maximal power output in well-trained triathletes.European journal of applied physiology · 2014Article
- Comments on point:counterpoint: skeletal muscle mechanical efficiency does/does not increase with age.Journal of applied physiology (Bethesda, Md. : 1985) · 2013Article
- Neuromuscular factors associated with decline in long-distance running performance in master athletes.Sports medicine (Auckland, N.Z.) · 2013Review
- Skeletal muscle ATP turnover and single fibre ATP and PCr content during intense exercise at different muscle temperatures in humans.Pflugers Archiv : European journal of physiology · 2011Article
- The between and within day variation in gross efficiency.European journal of applied physiology · 2010Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
Abstract
The effect of elevated muscle temperature on mechanical efficiency was investigated during exercise at different pedal frequencies in young and older women. Eight young (24 +/- 3 yr) and eight older (70 +/- 4 yr) women performed 6-min periods of cycling at 75% ventilatory threshold at pedal frequencies of 45, 60, 75, and 90 rpm under control and passively elevated local muscle temperature conditions. Mechanical efficiency was calculated from the ratio of energy turnover (pulmonary O(2) uptake) and mechanical power output. Overall, elevating muscle temperature increased (P < 0.05) mechanical efficiency in young (32.0 +/- 3.1 to 34.0 +/- 5.5%) and decreased (P < 0.05) efficiency in older women (30.2 +/- 5.6 to 27.9 +/- 4.1%). The different effect of elevated muscle temperature in young and older women reflects a shift in the efficiency-velocity relationship of skeletal muscle. These effects may be due to differences in recruitment patterns, as well as sarcopenic and fiber-type changes with age.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.