Not all parts of your thigh and calf muscles grow the same way — some parts grow better with certain exercises, so doing different types of lifts can help you build muscle more evenly.
Scientific Claim
Exercise selection (multi-joint vs. single-joint, knee angle variation) can lead to differential regional hypertrophy in the quadriceps and triceps surae muscles of trained young adults within 8 weeks, indicating that muscle growth is not uniform across muscle regions.
Original Statement
“Our findings indicate that exercise selection can influence regional hypertrophy of the muscles of the lower limbs and evidence of differences can be measured within 8 weeks.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
probability
Can suggest probability/likelihood
Assessment Explanation
The claim uses 'can lead to' appropriately, reflecting probabilistic causation from an RCT. It correctly limits scope to trained young adults and specifies regional hypertrophy, matching the study’s findings.
Evidence from Studies
Supporting (1)
Exercise Selection Differentially Influences Lower Body Regional Muscle Development
Different exercises make different parts of your thigh and calf muscles grow more—like how leg extensions grow one part of your quad better, and leg presses grow another part better.