Related by context. Frequent words. (Click for all words.) 61 muscle fibers 55 VO2max 54 muscle 54 muscular endurance 53 calf muscles 52 muscles 52 aerobic capacity 51 musculature 51 aerobically 51 plyometrics 50 skeletal muscles 50 metabolism 50 leucine 50 VO2 max 50 aerobic 50 muscle tissue 49 hormone testosterone 49 anaerobic 48 lactic acid 48 oxygen uptake 47 metabolisms 47 resting metabolic 47 fibers 46 endurance 46 connective tissues 46 muscle contractions 46 stamina 46 skeletal muscle 46 abdominal exercises 45 muscular 45 cardio workouts 45 aerobic fitness 44 metabolic 44 obliques 44 hypertrophy 44 hip flexors 44 aerobic exercise 44 myostatin 44 Athleticism 44 METs 44 pronation 44 physique 44 lateral movement 44 strenuous exercise 44 lactate 44 abdominal muscles 44 glutamine 43 biomechanical 43 glycogen 43 Aerobic 43 skin elasticity 43 hormone insulin 43 Quickness 43 muscle atrophy 43 hyaluronan 43 synovial fluid 43 midfoot 43 aerobic activity 43 overtraining 43 muscle soreness 43 lift weights 43 neuromuscular 43 tendons 43 Creatine 43 creatine 43 explosiveness 42 carbohydrates 42 bodyweight 42 exerciser 42 contractile 42 glandular 42 stretchy 42 motility 42 workout routines 42 clubhead speed 42 connective tissue 41 capillaries 41 collagen 41 glute 41 muscle toning 41 L arginine 41 sarcopenia 41 brain shrinkage 41 myosin 41 adipocytes 41 forefoot 41 suppleness 41 elasticity 41 cardio 41 exertion 41 Vitamin B# 41 aerobic exercises 41 aerobic workout 41 hamstrings 41 athleticism 41 absorb calcium 41 conditioning 41 anabolic 41 protein 41 electrolytes 40 twitch