Single vs. Multi-Joint Exercises Effect on the Body

Resistance training has many positive health effects including but not limited to increased aerobic capacity, decrease in body fat, and increase in muscle strength. Each of these qualities were used to examine the effects of single versus multi-joint exercises in this research study. Thirty-six male participants were split into two groups to complete an 8-week resistance training program that contained either only single joint (SJ) exercises or only multi-joint (MJ) exercises. Body composition, one repetition maximum tests, and peak oxygen consumption (VO2max) were all measured at the beginning and end of the study. Statistical analysis showed that both groups improved in all categories, with those in the MJ group having significantly larger improvements in VO2max and muscle strength than those in the SJ group.

People question what type of exercises should be part of their training and learning more about the benefits of each will help to optimize training programs. This study kept total load volume the same between the groups which allows for comparison between the groups; however, in actual training programs this is often not the actual switch people would be making if changing exercise types. Other constraints of this study include that it only included male participants and they were all amateur soccer players. Therefore, further studies would be needed to conclude that the same results would hold true for other groups like professional weight lifters, non-athletes, and females.


Other articles on this topic:

Work Cited: Paoli A, Gentil P, Moro T, Marcolin G, Bianco A. Resistance Training with Single vs. Multi-joint Exercises at Equal Total Load Volume: Effects on Body Composition, Cardiorespiratory Fitness, and Muscle Strength. Front Physiol. 2017;8:1105. doi:10.3389/fphys.2017.01105.

Exercise and Sleep: Workout and Sleep longer/better

According to a paper [1] published in 2014 in the American Journal of Lifestyle Medicine, that there is a bidirectional relationship between sleeping and working out. Many of us have probably heard about this study, but rarely do we stop and think what would happen to our sleep schedules if we did cease to exercise. We know that we can achieve better and more restful sleeping habits if we workout for 45 or so minutes a day; however, many graduates students, myself included should be spending time in the gym or exercising even in the off season of their sports. This is not even to stay in shape for their sports, but instead, to maintain the sleeping patterns and effectiveness of that sleep.  From this article, I learned that we should be forcing ourselves to workout to, of course, benefit from the known effects of working out on health, but also to achieve the indirect benefits of obtaining better sleep patterns and become healthier from that.

1:Kline CE. The bidirectional relationship between exercise and sleep: Implications for exercise adherence and sleep improvement. American journal of lifestyle medicine. 2014;8(6):375-379. doi:10.1177/1559827614544437.