Different exercise training modalities similarly improve heart rate variability in sedentary middle-aged adults: the FIT-AGEING randomized controlled trial

[21] De-La-O A(2008)Validity of the polar S810 to measure R–R intervals in children Int J Sports Med 18 1725-755

[22] Jurado-Fasoli L(2009)Are all measures created equal? Heart rate variability and respiration Biomed Sci Instrum 51 1236-3415

[23] Andrew ME(2013)Heart rate variability and first cardiovascular event in populations without known cardiovascular disease: meta-analysis and dose-response meta-regression Europace 82 20-3871

[24] Shengqiao L(2016)Acute and training effects of resistance exercise on heart rate variability Clin Physiol Funct Imaging 4 312-172

[25] Wactawski-Wende J(2014)Body mass index is related to autonomic nervous system activity as measured by heart rate variability—a replication using short term measurements J Nutr Health Aging 145 452-220

[26] Bahrainy S(2008)Assessment of autonomic function in cardiovascular disease. Physiological basis and prognostic implications J Am Coll Cardiol 10 745-1065

[27] Levy WC(1998)Effect of endurance exercise training on heart rate variability at rest in healthy young and older men Am J Cardiol 79 3403-711

[28] Busey JM(2001)The effect of gender on age-related blood pressure changes and the prevalence of isolated systolic hypertension among older adults: data from NHANES III J Gend-Specif Med 34 3862-131

[29] Bai X(2010)High-intensity interval exercise training improves heart rate variability in patients following percutaneous coronary intervention for angina pectoris Int J Cardiol 30 163-2855

[30] Li J(2015)Two new indexes for the assessment of autonomic balance in elite soccer players Int J Sports Physiol Perform 37 258-372

[21] De-La-O A(2008)Validity of the polar S810 to measure R–R intervals in children Int J Sports Med 18 1725-755

[22] Jurado-Fasoli L(2009)Are all measures created equal? Heart rate variability and respiration Biomed Sci Instrum 51 1236-3415

[23] Andrew ME(2013)Heart rate variability and first cardiovascular event in populations without known cardiovascular disease: meta-analysis and dose-response meta-regression Europace 82 20-3871

[24] Shengqiao L(2016)Acute and training effects of resistance exercise on heart rate variability Clin Physiol Funct Imaging 4 312-172

[25] Wactawski-Wende J(2014)Body mass index is related to autonomic nervous system activity as measured by heart rate variability—a replication using short term measurements J Nutr Health Aging 145 452-220

[26] Bahrainy S(2008)Assessment of autonomic function in cardiovascular disease. Physiological basis and prognostic implications J Am Coll Cardiol 10 745-1065

[27] Levy WC(1998)Effect of endurance exercise training on heart rate variability at rest in healthy young and older men Am J Cardiol 79 3403-711

[28] Busey JM(2001)The effect of gender on age-related blood pressure changes and the prevalence of isolated systolic hypertension among older adults: data from NHANES III J Gend-Specif Med 34 3862-131

[29] Bai X(2010)High-intensity interval exercise training improves heart rate variability in patients following percutaneous coronary intervention for angina pectoris Int J Cardiol 30 163-2855

[30] Li J(2015)Two new indexes for the assessment of autonomic balance in elite soccer players Int J Sports Physiol Perform 37 258-372