Can't tell what the extra energy cost is post stroke since this is paywalled. Go ask your doctor. Probably one of the reasons for your fatigue.
http://www.ncbi.nlm.nih.gov/pubmed/26621366
Abstract
BACKGROUND:
Neurorehabilitation efforts have been limited in their ability to
restore walking function after stroke. Recent work has demonstrated
proof-of-concept for a functional electrical stimulation (FES)-based
combination therapy designed to improve poststroke walking by targeting
deficits in paretic propulsion.
OBJECTIVES:
To determine the effects on the energy cost of walking (EC) and
long-distance walking ability of locomotor training that combines fast
walking with FES to the paretic ankle musculature (FastFES).
METHODS:
Fifty participants >6 months poststroke were randomized to 12 weeks
of gait training at self-selected speeds (SS), fast speeds (Fast), or
FastFES. Participants' 6-minute walk test (6MWT) distance and EC at
comfortable (EC-CWS) and fast (EC-Fast) walking speeds were measured
pretraining, posttraining, and at a 3-month follow-up. A reduction in
EC-CWS, independent of changes in speed, was the primary outcome. Group
differences in the number of 6MWT responders and moderation by baseline
speed were also evaluated.
RESULTS:
When compared with SS and Fast, FastFES produced larger reductions in
EC (Ps ≤.03). FastFES produced reductions of 24% and 19% in EC-CWS and
EC-Fast (Ps <001), respectively, whereas neither Fast nor SS
influenced EC. Between-group 6MWT differences were not observed;
however, 73% of FastFES and 68% of Fast participants were responders, in
contrast to 35% of SS participants.
CONCLUSIONS:
Combining fast locomotor training with FES is an effective approach to
reducing the high EC of persons poststroke. Surprisingly, differences in
6MWT gains were not observed between groups. Closer inspection of the
6MWT and EC relationship and elucidation of how reduced EC may influence
walking-related disability is warranted.
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