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Fitness

3 Ways Hot Yoga Might Benefit You

Science shows us the myriad benefits of adding hot yoga to your routine.

Amber Larsen

Written by Amber Larsen Last updated on Nov 22, 2021

CrossFit, running, gymnastics, martial arts, and Olympic lifting all have amazing benefits, but each also has its hazards. Life would be boring if we didn’t do the things we enjoyed.

CrossFit, running, gymnastics, martial arts, and Olympic lifting all have amazing benefits, but each also has its hazards. Life would be boring if we didn’t do the things we enjoyed. What is most important if you are new to any form of fitness is that you are educated in both the benefits and the hazards.

This article will educate you on the benefits of hot yoga (for an already healthy person). We will also talk about how moderation is key to obtaining these benefits.

Many of the referenced studies examined Bikram Yoga, since this style is synonymous with heated yoga, but the information in this article can also be applied to other yoga styles done in a heated environment.

The Science of Hot Yoga

For those practicing hot yoga, the most common problem is usually heat exhaustion. In this scenario, the normal feedback mechanisms for controlling body temperature are operating, but they are unable to prevent an increase in body temperature above the normal level. Heat stroke can also occur in hot yoga classes and is a more severe situation. With heat stroke the normal negative feedback system breaks down completely.

Despite these dangers, hot yoga can increase flexibility, aid in arterial heart health, and increase our general feeling of well-being. So, let’s take a look at the science behind heated yoga to find out exactly how it can benefit you and why.

Physical Fitness Benefits and Hot Yoga

The Journal of Strength and Conditioning Research did an exploratory study to examine the effects of short-term Bikram Yoga training on general physical fitness in young healthy adults. The control group consisted of eleven individuals aged 26 ± 7 years old and the Bikram group, which consisted of ten individuals, aged 29 ± 6 years. The Bikram group did 24 yoga sessions over the course of eight weeks. Each session consisted of ninety minutes of standardized and supervised postures performed in a heated and humidified studio.

Isometric deadlift strength, handgrip strength, lower back/hamstring and shoulder flexibility, resting heart rate and blood pressure, maximal oxygen consumption (measured on a treadmill), and lean and fat mass were measured before and after training.

“Be safe, enjoy what you do, and educate yourself in both the benefits and the risks (as with any fitness program).”

The Bikram Yoga subjects exhibited increased deadlift strength, substantially increased lower back/hamstring flexibility, increased shoulder flexibility, and modestly decreased body fat compared to the control group. There were no changes in handgrip strength, cardiovascular measures, or maximal aerobic fitness.

Conclusion: This short-term yoga-training protocol produced some beneficial changes in musculoskeletal fitness that were specific to the training stimulus.

Hot Yoga and Cardiovascular Function

The Journal of Alternative and Complementary Medicine sought to determine the effect of Bikram Yoga on arterial stiffness and insulin resistance in young and older adults. They recruited 24 young adults (mean age 30 ± 1) and eighteen middle-aged and older adults (mean age 53 ± 2 years). They completed an eight-week Bikram Yoga “intervention” where classes were performed for ninety minutes per session, three times per week.

“The results concluded that change over time in both core self-evaluation and life satisfaction was statistically significant, having improved over the course of the intervention.”

The results showed that body mass, body fat percentage, blood pressure, and fasting blood glucose and triglyceride concentrations did not significantly change as a result of the intervention in either age group. Trunk flexibility, as measured by the sit-and-reach test, increased in both groups.

Low-density lipoprotein cholesterol levels, plasma insulin concentrations, and scores on the homeostatic model of the assessment of insulin resistance decreased in older adults, whereas total high-density lipoprotein cholesterol concentrations were reduced in young adults. Carotid artery compliance was increased and β-stiffness index decreased in young but not older adults.

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Conclusion: A relatively short-term Bikram Yoga intervention improved arterial stiffness in the younger participants, but not the older adults. Conversely, it significantly reduced insulin resistance index in older participants, but not the young adults.

Hot Yoga and Psychological Health?

A study conducted by the Journal of Behavioral Health examined the effects of Bikram Yoga on two aspects of psychological well-being: core self-evaluation (CSE) and life satisfaction:

  • Core self-evaluation is referred to as positive self-concept and is comprised of self-esteem, self-efficacy, locus of control, and emotional stability.
  • Life satisfaction is a holistic appraisal of one’s life in which a comparison is made of current circumstances to what is thought to be an appropriate internally determined personal standard.

22 subjects completed a sixty-day Bikram Yoga challenge. Self-reported survey responses were gathered before and immediately after the challenge. A within-subject (people of the same test group, including the control), pre-test and post test experimental design was used.

Conclusion: Change over time in both core self-evaluation and life satisfaction was statistically significant, having improved over the course of the intervention. It is likely the well-known effects of participating in physical exercise also contributed to improvements in psychological well-being.

RELATED: Ashley Turner, Yoga Psychologist

Including Hot Yoga in Your Own Routine

As with any training modality, hot yoga comes with both drawbacks and benefits. I am both a biologist and a registered yoga teacher (RYT), and I have seen the ins and outs of many hot yoga facilities. When choosing where to train, I recommend doing research on both the facility and the instructors. Look for teachers with more education under their belt besides an RYT, especially when it comes to studio owners.

If ever during a hot yoga class you become too hot or feel dizzy, slowly walk out no matter what your instructor tells you. Don’t be afraid to do this. I also don’t recommend doing two or three hot yoga classes in one day, no matter how much you enjoy the practice. You can become severely dehydrated and the benefits of your practice go right out the window.

Be safe, enjoy what you do, and educate yourself in both the benefits and the risks (as with any fitness program).

References:

1. Tracy, Brian L. et.al. “Bikram Yoga and Physical Fitness in Healthy Young Adults.”The Journal of Strength and Conditioning Research (2013): 822-830, accessed November 18, 2014, doi: 10.1519/JSC.0b013e31825c340f

2. Rissell, Allison A. et.al “Hot, Sweaty, Satisfied: Effects of Bikram Yoga and Psychological Well-Being.” Journal of Behavioral Health (2014): 71-76, accessed November 18, 2014, doi: 10.5455/jbh.20131231051431

3. Hunter, SD. et.al. “The Effect of Bikram Yoga on Arterial Stiffness in Young and Older Adults.” The Journal of Alternative and Complementary Medicine (2013): 930-934, accessed November 18, 2014, doi: 10.1089/acm.2012.0709

4. Tate, P. Seeley’s Principles of Anatomy and Physiology. (New York: McGraw Hill Companies, 2012), 717

Photos courtesy of Shutterstock.

Amber Larsen

About Amber Larsen

Amber Larsen is a massage therapist, registered yoga teacher, biologist, CrossFit Level 1 trainer, CrossFit Gymnastics trainer, and kinesio tape practitioner.

Amber has been an athlete all of her life, playing soccer as a child until she finished college. She was also a gymnast and track and field athlete. She started her career in fitness coaching as an adult after she graduated from college. She soon found a love for kinesiology, human anatomy, and physiology, and decided to go back to school to become a massage therapist. She later went back to get her Bachelors of Science in biology with a specialization in human anatomy and physiology.

In 2012 she became a registered yoga teacher as well as a CrossFit level 1 trainer. In 2013 she earned her CrossFit Gymnastics certification. Amber currently trains at Southern Pines CrossFit and owns her own massage practice in North Carolina. She is always learning, and goes to trainings as much as she can in not only CrossFit but massage therapy and biology as well.

In her spare time Amber enjoys doing CrossFit, adventure races, spending time with her husband, and gymnastics floor tumbling.

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