Energy balance
Unilateral aerobic exercise (e.g., single-leg cycling) can elicit greater skeletal muscle metabolic adaptations than bilateral exercise when performed at the same relative intensity, due to the elimination of central limitations (bilateral deficit) that restrict workload in bilateral training.
If you are doing high-intensity aerobic training and want to maximize metabolic adaptations in your muscles, consider single-leg cycling or similar unilateral aerobic exercises. Because your heart and lungs limit how hard you can push when using both legs, using one leg at a time allows you to work that muscle harder, potentially leading to greater metabolic improvements.
For example, when cyclists performed high-intensity interval training with one or two legs at the same relative intensity (i.e., maximal maintainable effort for 5-min), skeletal muscle adaptations were greater for single-legged cycling (Abbiss et al. 2011).
Why this rating
Supported by specific citations (Abbiss et al. 2011) within the review.
Source
Investigating human skeletal muscle physiology with unilateral exercise models: when one limb is more powerful than two
Martin J. MacInnis et al. · Applied Physiology Nutrition and Metabolism · 2017
DOI 10.1139/apnm-2016-0645
More from this paper
- The unilateral exercise model (training one limb while keeping the contralateral limb as a control) significantly increases statistical power and reduces study costs compared to parallel-group or standard crossover designs by eliminating inter-subject variability and the need for washout periods.Strong
- Unilateral immobilization or unloading causes profound muscle atrophy and metabolic risk factors in the immobilized limb, but these adaptations are specific to that limb and do not transfer to the non-immobilized control limb.Good
Related findings · Energy balance
- Achieving a total body weight loss of 10-15% (or >10-15 kg) through Total Diet Replacement (TDR) induces remission of Type 2 Diabetes in individuals with short-duration disease.Strong
- Bariatric surgery is superior to medical management alone for inducing significant long-term weight loss, remission of type 2 diabetes, and reduction in mortality for patients with BMI ≥ 40 or ≥ 35 with comorbidities.Strong
- Achieving type 2 diabetes remission requires significant weight loss (≥15 kg) via major caloric restriction, independent of macronutrient composition.Strong
This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →