However, the role of testosterone may be overstated.  My friend James Kreiger recently published a super thorough analysis (note: paywall, but totally worth it) on all things testosterone and muscle growth, including analyses of cross-sectional research on people with different testosterone levels, studies comparing men and women, studies where people are given exogenous testosterone, and even studies where people were put on drugs to totally suppress testosterone production.  The main takeaway was that testosterone levels can dramatically affect the amount of muscle you start with, but they don’t really impact relative rates of muscle growth.


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The nutrition section of most weight training guides will try to shove a boilerplate nutrition plan in your face, but that's not how we roll. We want to instill the idea that—metabolically and physiologically—your body is unique. What works for someone else may not work for you. Understanding how your own body works and discovering your dietary needs are important concepts to remember as you form your own nutritional strategy.
Start in pushup position with your feet wide, and each hand gripping a light-weight dumbbell. Your hands should be directly beneath your shoulders. Keeping your core and glutes tight, lift the right dumbbell off the ground and toward your right ribcage, driving your right elbow up high. Squeeze for a moment, then lower it back to the start. Repeat with the left arm. On all reps, focus on doing everything possible to keep your hips and core square to the ground. They will shift a little bit (that’s OK!), but fight for good form. Alternate reps until time’s up. Do 3 sets.
It wasn’t worth splitting apart the young and older subjects to do formal subgroup analyses for hypertrophy outcomes (I like having at least 20 studies to pool), but just looking at simple averages, it seems that men and women gain muscle at a similar rate regardless of age.  In the studies on young participants (N=8), the men increased muscle size by 13.1%, while the women increased muscle size by 14.1%. Similarly, in the studies on older participants (N=17), the men increased muscle size by 11.9%, while the women increased muscle size by 11.8%. Both of these differences are clearly trivial.

If you’ll harken back to the beginning of this article, you’ll recall the two camps I mentioned:  1) people who claim that the process and outcomes of strength training for men and women are really dissimilar, and 2) people who claim that the process and outcomes of strength training for men and women are basically identical.  As I’m sure you’ve figured out by now, I think that the people in the second camp are closer to the truth than the people in the first camp. However, I think they miss the mark to some degree as well, since there are sex differences that extend beyond average results.
Don’t worry about what everyone else is wearing around you – this isn’t a fashion show. For shoes, look for a minimalist shoe with a hard, non-compressible sole.  Chuck Taylors are my personal favorite, but Steve wears Vibrams or Merrills. While there are some great shoe options specifically for weight lifting, as a beginner, the above multipurpose shoe will serve you just fine!
To hammer this point home: Staci wrote the majority of our free guide, Strength Training 101: Everything You Need to Know. The videos we mention and link to within the guide are generally of her demonstrating them. And we know that women often have to face additional challenges when training in the weight section of a gym (usually it’s idiot dudes who think they need help, ugh).
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