1. You're more muscular than you think
Researchers have always been interested in knowing more about the musculoskeletal system and its repercussions on different bodily functions. A 2000 study suggested that muscle mass plays a vital role in maintaining proper functioning since it accounts for 30 to 40% of a person's bodyweight. That same study determined that gender, age and physical activity were determining factors in a person's muscle mass, with greater muscle mass loss occurring in people over 50 years old. The researchers also confirmed that people who did strength training had a greater muscle mass.
2. Energy stores
Points worth retaining: strength training will increase your energy level by improving both your mitochondrial function and your muscle cells' capacity to store glycogen.
Simply put, thermoregulation refers to the body's ability to regulate its core temperature. This function serves a survival purpose by protecting vital organs such as the brain, the liver and the heart and to limit potential damage or even death, maintaining it at a normal temperature of 37o C. In order to maintain that temperature, the body is equipped with different mechanisms. Muscle plays a predominant role in regulating body temperature. As a result of ageing, and loss of muscle mass makes people more vulnerable to both hot and cold. This is particularly important in the elderly. When we don't have enough muscle tissue, we cannot produce enough heat and it is more difficult to maintain a normal body temperature. In this example, it helps to imagine muscle tissue as an insulator.
4. Muscles are nothing without the nervous syste
All these things about muscle tissue are interesting but let's remember that without the brain, the spinal cord and nerves, muscles wouldn't do much. It helps to imagine the nervous system as the orchestral conductor for the whole body, including muscle tissue. Simply put, the brain reaches down and connects to every muscle of the body through nerves, passing through the spinal cord. These connections are called neuromuscular junctions and have been shown to improve their function with a regular strength training regimen.
Points worth retaining:
very specific adaptations at the neuro-muscular junction occur following strength training, making trained people stronger through better muscle fibre recruitment.
5. It's very adaptable
Points worth retaining: you can always improve your health, no matter your age. Always keep in mind that muscle tissue is perhaps the most important aspect to work on as you get older but rest assured, great benefits await those who want to improve their health through strength training.
The human body and its functioning have always fascinated me - as early as my biology courses in high school. Interested in strength training and exercise myself, it was clear that the study of the human body and movement would influence my choice of career. After three years of university studies, I obtained my Bachelor of Science in Kinesiology from the Université du Québec à Montréal.
For more information on how strength training can help you, you can reach me or one of the other trainers at Simply Stronger!
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 Jannsen, I., Heymsfield, S., Wang, Z., Ross, R. Skeletal muscle mass and distribution in 468 men and women aged 18-88 yr, J Appl Physiol 89: 81-88, 2000.
 Porter C, Reidy PT, Bhattarai N, Sidossis LS, Rasmussen BB. Resistance Exercise Training Alters Mitochondrial Function in Human Skeletal Muscle. Medicine and science in sports and exercise. 2015;47(9):1922-1931.
 Tesch, PA. Skeletal muscle adaptations consequent to long-term heavy resistance exercise. Medicine and science in sports and exercice, 1988 Oct; 20 (5 Suppl): S132-4.
 Rowland LA, Bal NC, Periasamy M. The role of skeletal-muscle-based thermogenic mechanisms in vertebrate endothermy. Biological reviews of the Cambridge Philosophical Society. 2015;90(4):1279-1297. doi:10.1111/brv.12157.
 McGuff, D., Little, J., Body by Science - A Research-Based Program for Strength Training, Body Building, and Complete Fitness in 12 Minutes a Week, USA, McGraw-Hill, 2008.