Integrated exercise physiology showing muscle fibers, metabolism, heart rate, and VO2 max

Energy Systems, Heart Rate & VO2 Max

Connect muscle fibers, biomechanics, energy systems, heart rate, VO2 max, and resistance-training variables into one exercise-science framework.

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Athletic metabolism and energy-system pathways

Metabolism & Energy Systems for Exercise

Understand ATP and the major energy pathways that support explosive power, high-intensity exercise, endurance, and recovery.

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Heart rate training zones for recovery, endurance, tempo, and high-intensity work

Heart Rate Zones: Training by Intensity

Learn how resting heart rate, maximum heart rate, heart-rate reserve, and training zones can help organize recovery, endurance, tempo, and high-intensity workouts.

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Runners using sidewalks and crosswalks with reflective gear during a long run

Long-Run Training & Road Safety

Learn how to structure a long run while navigating New York sidewalks, roads, intersections, weather, visibility, and route choices more safely.

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Runners using telephone poles as landmarks during a hill fartlek workout

Fartlek Hill Workout: Telephone-Pole Speed Play

A hill fartlek workout using telephone poles as safe landmarks for speed play, with a 1-to-5 pyramid that can be scaled for runners and triathletes of different levels.

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ATP production and the phosphagen, glycolytic, and oxidative energy pathways during exercise

ATP & Energy Systems in Exercise

Learn how ATP powers muscle contraction and how the phosphagen, glycolytic, and oxidative pathways overlap to meet changing exercise demands.

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Runners completing controlled 200-meter track intervals with walking recovery

Track Intervals: 200m Speed Workout for Triathletes

A controlled track interval workout using repeated 200-meter fast efforts and 100-meter walking recoveries to teach pacing, speed endurance, and energy-system recovery.

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Triathlon swim workout with streamline, sculling, freestyle, and interval practice

Triathlon Swim Workout: Drills, Endurance & Speed

A structured triathlon swim workout combining streamline, sculling, treading, IM skills, moderate freestyle, and short faster intervals for technique, endurance, and speed.

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Runner changing race distances, used as the sample article topic for a research-summary assignment

How to Write an Article Research Summary

Write a clear article research summary with an objective ~125-word synopsis and a separate ~125-word personal analysis, plus a practical proofreading checklist.

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Indoor cycling class practicing cadence, resistance, and pedal control

Cycling Efficiency: Cadence, Stability & Power

Practice cycling cadence, resistance control, stable posture, single-leg coordination drills, and short tempo intervals in two structured triathlon cycling sessions.

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Triathlete performing a medicine-ball slam during a strength-training circuit

Triathlon Strength: Medicine Ball & Bodyweight Workouts

A six-session triathlon strength progression using medicine balls, body weight, dumbbells, bands, and pull-up work to develop strength, stability, movement control, muscular endurance, and power.

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Intermediate swimmer practicing streamlined underwater dolphin-kick technique

Intermediate Swim 3: Dolphin Dives, Streamline & Breath Control

Intermediate Swim Session 3 develops streamline, controlled dolphin dives, dolphin kick, sculling, rotation, and body-position skills with supervised underwater practice.

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