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Endurance Exercise & the Heart

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3 papers 0 to 25 followers
By Suzanne Atkinson ER doc and triathlon coach
Marco Romagnoli, Rafael Alis, Fabian Sanchis-Gomar, Giuseppe Lippi, Alesandro Arduini
We aimed to evaluate the utility of a submaximal heart rate recovery (HRR) test to monitor changes in cardiac fitness after aerobic training. Twenty healthy subjects were assigned to a control (n=10) or a training (n=10) group. Subjects in the training group performed 8 weeks of bicycle training, followed by 8 weeks of detraining. HRR was assessed after exercises at 65% and 80% HRmax. The HRR test was performed at weeks 0 (W0), 4 (W4), 8 (W8) and 16 (W16) in the training group and at W0 and W8 in the control group...
September 15, 2014: Journal of Strength and Conditioning Research
Antti M Kiviniemi, Mikko P Tulppo, Joonas J Eskelinen, Anna M Savolainen, Jukka Kapanen, Ilkka H A Heinonen, Heikki V Huikuri, Jarna C Hannukainen, Kari K Kalliokoski
PURPOSE: The effects of short-term high-intensity interval training (HIT) on cardiac autonomic function are unclear. The present study assessed cardiac autonomic adaptations to short-term HIT in comparison with aerobic endurance training (AET). METHODS: Twenty-six healthy middle-age sedentary men were randomized into HIT (n = 13, 4-6 × 30 s of all-out cycling efforts with 4-min recovery) and AET (n = 13, 40-60 min at 60% of peak workload) groups, performing six sessions within 2 wk...
October 2014: Medicine and Science in Sports and Exercise
Adrian D Elliott, Andre La Gerche
AIMS: Prolonged endurance exercise is associated with elevated biomarkers associated with myocardial damage and modest evidence of left ventricular (LV) dysfunction. Recent studies have reported more profound effects on right ventricular (RV) function following endurance exercise. We performed a meta-analysis of studies reporting RV function pre-endurance and postendurance exercise. METHODS: We performed a search of peer-reviewed studies with the criteria for inclusion in the analysis being (1) healthy adult participants; (2) studies examining RV function following an event of at least 90 min duration; (3) studies reporting RV fractional area change (RVFAC), RV strain (S), RV ejection fraction (RVEF) or tricuspid annular plane systolic excursion (TAPSE) and (4) studies evaluating RV function immediately (<1 h) following exercise...
June 2015: British Journal of Sports Medicine
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