Other studies have shown that genome-wide testing for balancing selection has thus far been fruitless, leading to suggestions that it is either rare or hard to find (Bubb et al. 2006).
While differentiating the signal of selection from neutral variation in these data sets is a challenge, the ability to combine a catalogue of QTNs where we have estimates of trait heritability with molecular population genetic tests for balancing selection would provide exciting advances in our understanding of the maintenance of standing genetic variation in the wild.
Mobility testing was among others done with the Functional Reach Test, a test for balance.
Lee (2013) notes that there is no consensus on how to best show balance and that there are a number of ways to test for balance.
Interventions: Five musculoskeletal tests: 2 functional tests (TUG, for mobility; functional reach test, for balance), and 3 muscle strength tests (knee flexor, knee extensor, grip).
A one-sample t test for balance after each block revealed no significant deviance from €0 in each block, on average (all p values >.2).
The SPPB aims to identify people at risk of functional decline, and it is a screening test for balance, walk function, and muscle strength in the lower limbs [ 17].
A more comprehensive test for balance is the performance-oriented mobility assessment of balance (B-POMA), which includes measures of sitting and standing balance, the ability to withstand a nudge on the sternum, and the ability to reach up, bend down, and extend the back.
Based on the screening result, eligible participants underwent a physical fitness test that included a hand-grip strength measurement and sit-up test for muscular strength, a standing on one leg with eyes closed test for balance, and the use of a cycle ergometer for testing cardiorespiratory endurance.
Stand on one leg to test for balance.
