Effects of eight weeks of aerobic interval training and of isoinertial resistance training on risk factors of cardiometabolic diseases and exercise capacity in healthy elderly subjects

We investigated the effect of 8 weeks of high intensity interval training (HIT) and isoinertial resistance training (IRT) on cardiovascular fitness, muscle mass-strength and risk factors of metabolic syndrome in 12 healthy older adults (68 yy ± 4). HIT consisted in 7 two-minute repetitions at 80%-90...

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Published in:Oncotarget 2015-07, Vol.6 (19), p.16998-17015
Main Authors: Bruseghini, Paolo, Calabria, Elisa, Tam, Enrico, Milanese, Chiara, Oliboni, Eugenio, Pezzato, Andrea, Pogliaghi, Silvia, Salvagno, Gian Luca, Schena, Federico, Mucelli, Roberto Pozzi, Capelli, Carlo
Format: Article
Language:English
Subjects:
Aged
Cardiovascular Diseases - prevention & control
Exercise - physiology
Humans
Longitudinal Studies
Male
Metabolic Syndrome - prevention & control
Muscle Strength - physiology
Physical Fitness - physiology
Research Paper: Gerotarget (Focus on Aging)
Resistance Training - methods
Risk Factors
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Summary:We investigated the effect of 8 weeks of high intensity interval training (HIT) and isoinertial resistance training (IRT) on cardiovascular fitness, muscle mass-strength and risk factors of metabolic syndrome in 12 healthy older adults (68 yy ± 4). HIT consisted in 7 two-minute repetitions at 80%-90% of V˙O2max, 3 times/w. After 4 months of recovery, subjects were treated with IRT, which included 4 sets of 7 maximal, bilateral knee extensions/flexions 3 times/w on a leg-press flywheel ergometer. HIT elicited significant: i) modifications of selected anthropometrical features; ii) improvements of cardiovascular fitness and; iii) decrease of systolic pressure. HIT and IRT induced hypertrophy of the quadriceps muscle, which, however, was paralleled by significant increases in strength only after IRT. Neither HIT nor IRT induced relevant changes in blood lipid profile, with the exception of a decrease of LDL and CHO after IRT. Physiological parameters related with aerobic fitness and selected body composition values predicting cardiovascular risk remained stable during detraining and, after IRT, they were complemented by substantial increase of muscle strength, leading to further improvements of quality of life of the subjects.
ISSN:1949-2553
1949-2553
DOI:10.18632/oncotarget.4031