Andrea Zignoli

ORCID: 0000-0003-1315-5573
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About
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Research Areas
  • Sports Performance and Training
  • Cardiovascular and exercise physiology
  • Heart Rate Variability and Autonomic Control
  • Lower Extremity Biomechanics and Pathologies
  • Muscle activation and electromyography studies
  • High Altitude and Hypoxia
  • Exercise and Physiological Responses
  • Sports Dynamics and Biomechanics
  • Balance, Gait, and Falls Prevention
  • Winter Sports Injuries and Performance
  • Sports injuries and prevention
  • Muscle metabolism and nutrition
  • Non-Invasive Vital Sign Monitoring
  • Prosthetics and Rehabilitation Robotics
  • Vehicle Dynamics and Control Systems
  • Diabetes Management and Research
  • Motor Control and Adaptation
  • Genetics and Physical Performance
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Soft Robotics and Applications
  • Time Series Analysis and Forecasting
  • Teleoperation and Haptic Systems
  • Knee injuries and reconstruction techniques
  • Cardiovascular Effects of Exercise
  • Body Composition Measurement Techniques

University of Trento
2018-2024

University of Verona
2014-2022

Kanagawa Institute of Technology
2017-2019

The use of continuous glucose monitors (CGMs) in individuals living without diabetes is increasing. purpose this study was to profile various CGM metrics around nutritional intake, sleep and exercise a large cohort physically active men women any known metabolic disease diagnosis better understand the normative glycemic response these common stimuli. A total 12,504 adults (age 40 ± 11 years, BMI 23.8 3.6 kg/m2; 23% self-identified as women) wore real-time (Abbott Libre Sense Sport Glucose...

10.3390/s24030744 article EN cc-by Sensors 2024-01-24

This study aimed to determine whether the fatigue induced by a mountain ultramarathon (MUM) led changes in energy cost and kinematic during level graded running. Pre- post-race, 14 ultratrail runners ran on level, uphill (5%) downhill treadmill at 10 km · h−1. Kinematic data were acquired using photocell system. Post-race, increased 13.1% (P < 0.001). No change was noted Duty factor stride frequency increased, whereas swing time, cycle time length decreased all conditions 0.05). Contact rate...

10.1080/02640414.2015.1022870 article EN Journal of Sports Sciences 2015-03-09

Purpose: To examine the effects of world's most challenging mountain ultramarathon (MUM, 330 km, cumulative elevation gain +24,000 m) on energy cost and kinematics different uphill gaits. Methods: Before (PRE) immediately after (POST) competition, 19 male athletes performed three submaximal 5-min treadmill exercise trials in a randomized order: walking at 5 km·h-1, +20%; running 6 +15%; 8 +10%. During trials, was assessed using an indirect calorimetry system spatiotemporal gait parameters...

10.3389/fphys.2016.00530 article EN cc-by Frontiers in Physiology 2016-11-08

The cardiopulmonary exercise test (CPET) constitutes a gold standard for the assessment of an individual's cardiovascular fitness. A trend is emerging development new machine-learning techniques applied to automatic process CPET data. Some these focus on precise task detecting thresholds, which represent important physiological parameters. Three are major challenges tackled by this contribution: (A) regression (i.e., correctly identifying intensity domains and their crossing points); (B)...

10.3390/s23020826 article EN cc-by Sensors 2023-01-11

Measurement of oxygen uptake during exercise ([Formula: see text]) is currently non-accessible to most individuals without expensive and invasive equipment. The goal this pilot study was estimate cycling [Formula: text] from easy-to-obtain inputs, such as heart rate, mechanical power output, cadence respiratory frequency. To end, a recurrent neural network trained laboratory data predict values. Data were collected on 7 amateur cyclists graded test, two arbitrary protocols (Prot-1 -2) an...

10.1371/journal.pone.0229466 article EN cc-by PLoS ONE 2020-03-12

First and second ventilatory thresholds (VT1 VT2) represent the boundaries of moderate-heavy heavy-severe exercise intensity. Currently, VTs are primarily detected visually from cardiopulmonary test (CPET) data, beginning with an initial data screening followed by processing statistical analysis. Automated VT detection is a challenging task owing to high signal noise ratio typical CPET data. Recurrent neural networks describe machine learning form Artificial Intelligence that can be used...

10.1080/17461391.2019.1587523 article EN European Journal of Sport Science 2019-03-18

The problem of the automatic determination first and second ventilatory thresholds (VT1 VT2) from cardiopulmonary exercise test (CPET) still leads to controversy. reliability gold standard methodology (i.e. expert visual inspection) feeds into debate several authors call for more objective methods be used in clinical practice. In this study, we present a framework based on collaborative approach, where web-application was crowd-source large number (1245) CPET data individuals with different...

10.1080/17461391.2020.1866081 article EN European Journal of Sport Science 2020-12-17

Using a large database of continuous glucose monitoring (CGM) data, this study aimed to gain insights into the association between pre-exercise food ingestion timing and reactive hypoglycemia. A group 6,761 users self-reported 48,799 events logged minute-by-minute CGM, which was used detect hypoglycemia (<70 mg/dL) in first 30 min exercise. linear non-linear binomial logistic regression model investigate probability experiencing An analysis variance conducted compare predictive ability...

10.1080/17461391.2023.2233468 article EN European Journal of Sport Science 2023-07-10

We examined whether trained women exhibit similar cardiovascular and cardiac baroreflex alterations after a half-marathon compared to men. Thirteen (39.1 ± 9.3 years; 165 6 cm; 58.2 7.5 kg; maximal aerobic speed (MAS): 13.7 2.2 km·h−1) 12 men (45.7 10.5 178 7 75.0 8.3 MAS: 15.8 ran an official half-marathon. Before 60-min after, variables, parasympathetic (heart rate variability analysis) modulation function (transfer sequence analyses) were assessed during supine rest squat-stand test....

10.3390/ijerph17176337 article EN International Journal of Environmental Research and Public Health 2020-08-31

Inertial measurement units (IMU) constitute a light and cost-effective alternative to gold-standard systems in the assessment of running temporal variables. IMU data collected on 20 runners at different speeds (80, 90, 100, 110 120% preferred speed) treadmill inclination (±2, ±5, ±8%) were used here predict following variables: stride frequency, duty factor, two indices variability such as detrended fluctuation analysis alpha (DFA-α) Higuchi’s D (HG-D). Three estimation methodologies...

10.1371/journal.pone.0287978 article EN cc-by PLoS ONE 2023-07-20

Exercise physiological responses can be markedly affected by acute hypoxia. We investigated cardiac autonomic and to different hypoxic training protocols. Thirteen men performed three exercise sessions (5×5-min; 1-min passive recovery): normoxic at 80% of the power output (PO) first ventilatory threshold (N), (FiO2=14.2%) with same PO as N (HPO) heart rate (HR) (HHR). was lower in HHR (21.1±9.3%) compared HPO. Mean HR higher HPO (154±11 bpm, p<0.01) than (139±10 vs. 138±9 bpm; p=0.80). SpO2...

10.1055/a-1015-0647 article EN International Journal of Sports Medicine 2019-10-24

A methodology to study bike handling of cyclists during individual time trials (ITT) is presented. Lateral and longitudinal accelerations were estimated from GPS data professional (n = 53) racing in two ITT different length technical content. Acceleration points plotted on a plot (g-g diagram) they enclosed an ellipse. correlation analysis was conducted between the area ellipse final ranking. It hypothesised that larger associated with better performance. An analytical model for bike-cyclist...

10.1080/17461391.2021.1966517 article EN European Journal of Sport Science 2021-08-07

We investigated the relationship between maximal oxygen consumption (VO2max) and performance in vertical races (VRs). In total, 270 performances, from 26 VRs, cardiopulmonary data of 64 highly-trained mountain runners (53 M, V O2max: 75.7±5.8 mL/min/kg; 11 F: 65.7±3.4 mL/min/kg), collected over a 11-year period (2012-2022), were analysed. The VO2max was modelled separately for national (NVRs), international (IVRs), VRs current pole-unassisted pole-assisted kilometre (VK) records (RVRs)....

10.1080/02640414.2023.2172801 article EN Journal of Sports Sciences 2022-11-17

Fornasiero, Alessandro, Aldo Savoldelli, Federico Stella, Alexa Callovini, Lorenzo Bortolan, Andrea Zignoli, David A. Low, Laurent Mourot, Schena, and Barbara Pellegrini. Shortening work-rest durations reduces physiological perceptual load during uphill walking in simulated cold high-altitude conditions.

10.1089/ham.2019.0136 article EN High Altitude Medicine & Biology 2020-05-15
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