Background and Study Aim. Scientific-methodical literature underlined the importance of improving the effectiveness of physical education’s tools and methods during the scheduled university lessons. Scientists point out the necessity to take into account every factor determining the training effect of lessons with strength exercises. The immediate training effect can be determined by measuring the heart rate during different modes of strength exercises and during recovery. The aim of this study is to analyse the strength exercises’ immediate training effect on a student’s body in the static mode and in the isotonic mode. Material and Methods.  In the study participated 47 freshman male students of the Sochi State University (Russia). The study took place in September-December 2019. Heart rate was measured with Sport Testers POLAR RS-400 during strength exercises and during recovery. The results were analysed in the computer programme SPSS Statistics v22.0. Statistical significance of the results was defined using non-parametric Wilcoxon test. Heart rate was analysed during four types of plank positions in static and isotonic modes. Results: The study determined the effect of different training modes of strength exercises on a student’s body. The immediate training effect of doing the bodyweight strength exercises in the isotonic mode compared to the static mode is characterised by a higher maximum heart rate at the end of doing the exercise (р<0,05); a higher average heart rate during the exercise and during rest until the next exercise (р<0,05); a higher combined heart rate (р<0,05). Conclusion: The isotonic mode of the bodyweight strength exercises has a more prominent training effect than the static mode due to the specific nature of muscle contractions. Due to analysed heart rate values, the authors recommend taking into account the individual level of every student’s physical fitness.

In this article we made an attempt to substantiate the scientific basis of the effective usage of strength exercises during physical education classes with university students. Basic components of the methodology, influencing on the health improving effect of the training in the gym, (means, methods and methodological procedures) are examined. Strength exercises for major muscle groups are considered as the basic means. Exercises are done on training apparatus in quasi-isotonic mode during circular training. We used visual marks to determine the amplitude of each exercise, focusing on students' muscular sensations during the exercises, techniques related to the organization of training classes as methodological procedures. The effect of the sequence of the strength exercises on major muscle groups and influence of the rest between "stations" when performing strength training against the method of "circular training" was found on the effect of training in the gym.

In this paper we made an attempt to substantiate scientific basis of the effective use of strength exercises during physical education classes with university students. Basic components of the methodology, influencing on the health improving effect of the training in the gym, (means, methods and methodological procedures) are examined. Strength exercises for major muscle groups are considered as the basic means. Exercises are done on training apparatus in quasiizotonic mode during circular training. We used visual marks to determine the amplitude of each exercise, focusing on students' muscular sensations during the exercises, techniques related to the organization of training classes as methodological procedures. The effect of the sequence of the strength exercises for major muscle groups and influence of the rest between "stations" when performing strength training based on the method of "circular training" was found on the effect of training in the gym.Keywords: students; methodology; strength exercises; circular training method; quasiizotonic mode; training apparatus. ВведениеСнижение уровня здоровья, физической и функциональной подготовленности студентов вуза отмечается в большинстве научных работ, посвященных физическому воспитанию студентов. Решением данной проблемы может быть использование новых организационных форм построения занятий, использование на занятиях популярных у молодежи средств физической культуры и т.д. что позволит, не увеличивая общее количество часов (400 час.), отводимых ФГОС на дисциплину «Физическая культура», повысить эффективность физического воспитания.В настоящее время оздоровительные занятия с использованием силовых тренажеров пользуются большой популярностью. Положительное воздействие силовых упражнений на организм человека установлено многими исследователями [1-7 и мн. др.]. Однако вопросы, связанные с применением силовых физических упражнений в рамках академических занятий физической культурой со студентами, требуют дальнейшего изучения и уточнения. Прежде всего, это вопросы, связанные с определением оптимальной величины нагрузки и ее динамика в процессе занятий, определение наиболее рациональной последовательности