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hemodynamic and metabolic responses to proprioceptive neuromuscular
facilitation (PNF) exercise were examined in 32 male university students
(aged 19-28 years). Ten repetitions of PNF exercises were applied
to the subjects' dominant upper extremities in the following order:
as an agonist pattern flexion, adduction and external rotation; and
as an antagonist pattern extension, abduction and internal rotation.
Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure
(DBP), double product (DP), and blood lactate concentration (La) were
determined before, immediately after, and at 1st, 3rd, and 5th minutes
after PNF exercise. A one-way ANOVA with repeated measures indicated
significant differences in HR, SBP, DBP, DP and La immediately after
PNF exercise. HR increased from 81 (±10) to 108 (±15)
b·min-1 (p < 0.01), SBP increased from 117 (±10)
to 125 (±11) mmHg (p < 0.01), DBP increased from 71 (±10)
to 75 (±8) mmHg (p < 0.01), DP increased from 96 (±16)
to 135 (±24) (p < 0.01), and La increased from 0.69 (±0.31)
to 3.99 (±14.63) mmol·L-1 (p < 0.01). Thus PNF exercise
resulted in increased hemodynamic responses and blood lactate concentration
that indicate a high strain on the cardiovascular system and anaerobic
metabolism in healthy subjects.
KEY
WORDS: Heart rate, systolic blood pressure, diastolic blood
pressure, double product, PNF.
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