External characteristics of cardio-strength load based on local exercises and heart rate response during its performance

Abstract

In modern health-enhancing physical culture the use of complex training sessions with successive tasks solving is mainly provided and almost no attention to complex training sessions with parallel task solving. In this regard, it is important to find out the possibility of building training sessions that would allow influencing the cardio respiratory system through the use of strength exercises. The purpose of the study is to explore the characteristics of the load and heart rate changing in complex cardio-strength training sessions with parallel task solving. Experimental total training sessions included a warm-up (10-12 min) and 6 local strength exercises divided into three pairs (biceps - triceps, deltoid - latissimus dorsi, rhomboid - pectoral muscles) performed as circuit training. The duration of cardio- strength sessions – 30 min., intensity – 12 RM, repetition – 4, rest – changing exercises. A 62 years old man with high physical fitness for this age took place in a research. The heart rate study was carried out by the POLAR cardio-tracker. The sound recording of the exercise commentary was simultaneously activated with the heart rate sensor. This made it possible to study the duration of exercises, rests and heart rate during each exercise. Research has shown it is possible to ensure a cardiovascular reaction appropriate for cardio training by using strength exercises. But it requires certain resistance, repetition and rest between exercises at the training session. It is advisable to call such loads as cardio-strength loads. A person is able to provide the necessary duration of exercises and rests in such training sessions without a clock or sound leader. The current heart rate during certain cardio-strength exercise is determined by the complex, ambiguous interaction of several factors. For loads of 1/3 of 12 RM (4 repetitions per set) the most impotent is the initial position. In the initial position the most influential is the body position while performing exercises (lying, sitting, bending over and standing); the activity of the synergist muscles is also important here. In addition, the heart rate reaction depends on a resistance, the preliminary exercise and the activity during the changing exercises.