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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Exp Gerontol. 2014 Apr 2;55:92–101. doi: 10.1016/j.exger.2014.03.018

Table 1.

Overview of motor function tests.

Subdomain Test Equipment Trials Breaks Variables Outcome
Mobility
500 m walk Indoor track 1 10 Time Endurance walk time
Five sit-to-stand Standard height chair 1 15 Time Sit-to-stand time

Strength
Dorsiflexor 1-RM Weights 6-8 5 Mass lifted (kg) 1-RM for load determination
Knee Extensor MVC Force transducer 3-5 5 Torque per mass Knee extensor strength
Knee flexor MVC Force transducer 3-5 5 Torque per mass Knee flexor strength
Dorsiflexor MVC Force transducer 3-5 5 Torque per mass Dorsiflexor strength
-- -- -- -- Average torque per mass Composite lower body strength

Steadiness
60 s dorsiflexor
isometric contraction @
5% 1-RM
Force transducer 1 10 SD and CV for force Steadiness @ 5% 1-RM
EMG -- -- EMG amplitude (TA and MG) Coactivation ratio
60 s dorsiflexor
isometric contraction @
20% 1-RM
Force transducer 1 20 SD and CV for force Steadiness @ 20% 1-RM
EMG -- -- EMG amplitude (TA and MG) Coactivation ratio

Fatigability
Dorsiflexor isometric
contraction for as long
as possible @ 20% 1-RM
Weights 1 -- Time Endurance time
EMG -- -- EMG amplitude (TA, MG, KE) EMG amplitude (% initial)
Force transducer -- -- SD and CV for force SD and CV for force
0-10 scale -- -- RPE RPE

Tests are listed in order of presentation. Rest intervals between strength trials were 60 s. Breaks are reported as minimal rest times after each test (min). 1-RM, one-repetition maximum; CV, coefficient of variation; EMG, electromyogram; KE, knee extensors; MVC, maximal voluntary contraction; MG, medial gastrocnemius; RPE, rating of perceived exertion; SD, standard deviation; TA, tibialis anterior