Key result
Endurance and sprint-power athletes had significantly different myosin heavy chain compositions compared to untrained students (P<0.05), but unexpectedly did not differ from each other.
Population
24 male volunteers classified into three groups: untrained students, national and sub-national level…
Design
Cross-sectional
Authors
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Endurance athletes show higher muscle capillary density; this Level 5 observation leaves open causal links to performance or training guidance.
Cross-Sectional (n=24)
p-value: p=<0.05
The myosin profile in sprint-power athletes did not differ from endurance athletes and had lower fastest MyHCIIX isoform than untrained students, suggesting an unfavorable profile for their sport.
Zawadowska et al. (2004) conducted a cross-sectional in Healthy volunteers (n=24). Athletic training background (endurance or sprint-power) vs. Untrained students was evaluated on Composition of muscle fibre types and myosin heavy chains (MyHC) (p=<0.05). Endurance and sprint-power athletes had significantly different myosin heavy chain compositions compared to untrained students (P<0.05), but unexpectedly did not differ from each other.
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