Test-retest reliabilities of hand-held dynamometer for lower-limb muscle strength in intellectual disabilities.

Wuang et al. (2013) tested a hand-held dynamometer on teens with intellectual disability. They squeezed the device twice, one week apart, to see if scores stayed the same.

The team checked eight lower-limb muscle groups, like hip flexors and knee extenders. They wanted to know if the tool gives steady numbers in this population.

The dynamometer earned good test-retest marks for most muscles. Reliability ranged from 0.81 to 0.96, which means scores were steady across visits.

Only ankle plantar-flexors landed just below the good zone. The authors say you can trust the gadget to track leg strength in teens with ID.

Wilson et al. (2023) and Maïano et al. (2011) also gave thumbs-up to new scales for teens with ID. They checked wellbeing and mood tools, while Yee-Pay checked muscle strength. All three papers show the same theme: adapt the tool, then it works.

Wang et al. (2012) linked weaker muscles to lower daily function in kids with CP. Yee-Pay now gives us a reliable way to measure that strength in teens with ID, so we can run similar studies.

Griffith et al. (2012) warned that older adults with ID have very low fitness. Yee-Pay’s tool lets us spot strength drops early, before those later problems show up.

You now have a quick, cheap way to track leg strength in teens with ID. Use the dynamometer every few months to see if fitness programs are working. Pair it with agility tests to spot kids who need extra motor support.