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**Plank**

A core strength exercise involving maintaining a position similar to a push-up, supporting the body with forearms and toes.

**Core strength**

The ability of torso muscles to stabilize the spine and pelvis, crucial for stability and movement efficiency.

**Physical benefits**

Positive effects on the body from physical activity, like improved strength, flexibility, endurance, and overall health.

**Isotonic**

Muscle contraction with changing length, as in traditional weightlifting exercises.

**Isometric**

Muscle contraction with constant length, like holding a static position such as a plank.

**Plyometric moves**

Exercises with explosive movements for power and speed development, often involving jumping.

**Reverse lunge**

Lunge variation stepping backward, engaging different leg and hip muscles.

**90° degrees**

Angle measurement indicating a right angle, common in exercises like knee or elbow bends.

**Muscular strength**

Maximum force muscles can generate in a single effort.

**Hamstrings**

Muscles on the back of the thigh for knee bending and hip extension.

**Endurance**

Muscles' ability for repeated contractions over time without fatigue.

**180° degrees**

Angle measurement indicating a half-circle or straight line.

**Lateral lunge**

Lunge variation stepping sideways, targeting different leg and hip muscles.

**Curtsy lunge**

Lunge variation stepping one leg diagonally behind the other, mimicking a curtsy.

**Pectorals**

Chest muscles for movements like pushing and hugging.

**Deltoids**

Shoulder muscles for abduction, flexion, and extension.

**Triceps**

Muscles on the back of the upper arm for extending the elbow joint.

**Rectus abdominis**

Vertical abdominal muscles on the anterior abdomen wall, known as "abs."

**Abdominis**

Abbreviation for rectus abdominis, the abdominal muscles.

**Gluteus medius**

Muscle on the pelvis outer surface for hip abduction and stabilization.

**Side lunge**

Lunge variation stepping sideways, engaging different leg and hip muscles.

**Cellulite**

Skin condition with a dimpled appearance, influenced by genetics, lifestyle, and body composition, not directly related to exercise.