Cardiorespiratory and Metabolic Responses to Loaded Half Squat Exercise Executed at an Intensity Corresponding to the Lactate Threshold
Mate-Muñoz, José Luis
Monroy Anton, Antonio (1)
Rodríguez Rodríguez, Barbara
Garnacho-Castaño, Manuel V
Tipo de Ítem:Articulo Revista Indexada
This study was designed to identify the blood lactate threshold (LT2) for the half squat (HS) and to examine cardiorespiratory and metabolic variables during a HS test performed at a work intensity corresponding to the LT2. Twenty-four healthy men completed 3 test sessions. In the first, their one-repetition maximum (1RM) was determined for the HS. In the second session, a resistance HS incremental-load test was performed to determine LT2. Finally, in the third session, subjects performed a constant-load HS exercise at the load corresponding to the LT2 (21 sets of 15 repetitions with 1 min of rest between sets). In this last test, blood samples were collected for lactate determination before the test and 30 s after the end of set (S) 3, S6, S9, S12, S15, S18 and S21. During the test, heart rate (HR) was telemetrically monitored and oxygen consumption (VO2), carbon dioxide production (VCO2), minute ventilation (VE), respiratory exchange ratio (RER), ventilatory equivalent for O-2 (VE.VO2-1) and ventilatory equivalent for CO2 (VE.VCO2-1) were monitored using a breath-by-breath respiratory gas analyzer. The mean LT2 for the participants was 24.8 +/- 4.8% 1RM. Blood lactate concentrations showed no significant differences between sets 3 and 21 of exercise (p = 1.000). HR failed to vary between S6 and S21 (p > 1.000). The respiratory variables VO2, VCO2, and VE.VCO2-1 stabilized from S3 to the end of the constant-load HS test (p = 0.471, p = 0.136, p = 1.000), while VE and VE.VO2-1 stabilized from S6 to S21. RER did not vary significantly across exercise sets (p = 0.103). The LT2 was readily identified in the incremental HS test. Cardiorespiratory and metabolic variables remained stable during this resistance exercise conducted at an exercise intensity corresponding to the LT2. These responses need to be confirmed for other resistance exercises and adaptations in these responses after a training program also need to be addressed.
Este ítem aparece en la(s) siguiente(s) colección(es)
Mostrando ítems relacionados por Título, autor o materia.
Monroy Anton, Antonio (1); Rodríguez Rodríguez, Barbara (British Journal of Sports Medicine, 06/2016)Runtastic PRO is an app aimed at logging fitness in a number of different activities and sports. It captures all the basic data: distance, average speed, speed between mile markers, elevation, pace, pace between mile ...
Mon, Daniel; Zakynthinaki, María S; Cordente, Carlos A; Monroy Anton, Antonio (1); Rodríguez Rodríguez, Barbara; López Jiménez, David (PLOS One, 06/2015)The ability to stabilize the gun is crucial for performance in Olympic pistol shooting and is thought to be related to the shooters muscular strength. The present study examines the relation between performance and finger ...
Swiss ball training versus stable surface training for the treatment of low back pain in male judo athletes Monroy Anton, Antonio (1); Rodríguez Rodríguez, Barbara (1); López Jiménez, David (Archives of Budo, 02/2015)Background & Study Aim: Between 60% and 80% of the population suffers from low back pain at some point in their lives. This disease is commonly observed in judo, with a prevalence of around 35%. Therefore, any instrument, ...